Category Archives: Diet and Heart Disease

RMore Incredibly Bad Science From Dr. Esselstyn’s Plant-Based (Vegan) Diet Study

A while back the skeptical cardiologist exposed “The incredibly bad science behind Dr. Esselstyn’s plant-based diet.

The diet has the catchy slogan “eat nothing with a face or a mother” and Esselstyn was featured in the vegan propaganda film “Forks Over Knives.”

After detailing the lack of science I concluded:

Any patients who were not intensely motivated to radically change their diet would have avoided this crazy "study" like the plague.

This "study" is merely a collection of 18 anecdotes, none of which would be worthy of publication in any current legitimate medical journal.

Three of the 18 patients have died, one from pulmonary fibrosis, one presumably from a GI bleed, and one from depression. Could these deaths be related to the diet in some way? We can't know because there is no comparison group.

The post garned little attention initially but in the last few months several hundred visitors per day apparently read it and Essesltyn followers have started leaving me testimonials to the diet along with nasty comments.

Here’s are some typical ones (with my comments in red)

“If your (sic) not backed by some meat industry or cardiac bypass group I would be much surprised.”

I am completely free of bias. Nobody is paying me anything to do the research and writing I do. My only purpose is to find the truth about diet in order to educate my patients properly. I have  saved many more patients from bypass surgery than I have referred for the procedure.

“it is so arrogant to think the only science could come from clinical studies which may be funded by an interested party.”

Doctors like randomized (and preferably blinded) clinical studies because they minimize the bias introduced by interested parties like patients and zealous investigators (like Dr. E)  motivated to see positive outcomes. Small, non-randomized studies can only generate ideas and hypotheses which larger, randomized studies can prove with a greater degree of certainty.

“the entire nentire western medical system is skewed due to the big pharma influence…unfortunately western medicine believes the only science is the pen and the scalpel..whereas …history is the best teacher of all…”

By pen I assume you mean medications. If we examine history as  you suggest we see that life expectancy was 50 years in 1945  but today in developed countries it is around 80 years. This advance corresponds to (among other things) advances in vaccines, antibiotics, anti-cancer drugs, cardiac and blood pressure medications and surgery: the pen and the scalpel. It does not correspond to following a vegan diet.

“Your foolishness is the embarrassment.”

Thank you for this insightful comment! I’m considering it as my epitaph.

One man felt that changing to the Esselstyn diet dramatically improved his cardiac situation and commented:

“Nothing like bashing something that works just because you want to eat meat. .”

I do enjoy meat in moderation but I also really enjoy vegetables, nuts, fish, legumes, olive oil and avocados. I looked into Esselstyn’s diet in detail because it stands out as particularly misguided in banning nuts, avocados, fish and olive oil to heart patients.

..”.So sicking (sic) to see people talk trash about something that works so well… It saved my life…”

I’m happy you are doing well with your cardiac condition but it is impossible to know what would have happened to you on a more reasonable diet such as the Mediterranean diet (which actually has legitimate scientific studies supporting it). And again criticizing Esselstyn’s ideas and “study” can hardly be considered trash talk.

“I personally have followed dr. esselstyn’s program for what will be 5 years in 11/17 and have made tremendous gains in my cardio pulmonary function….my cardiologist looks at me in wonder…why are you here? and often says , if everyone did what you have…Id be out of business…so…isnt that telling and sad?”

I’m glad you’re doing well with the program, most patients can’t follow this kind of diet for more than a few months.  But perhaps we shouldn’t judge its effectiveness until  we make sure you don’t suffer a heart attack next week. Your cardiologist is wrong: see what I wrote about “dealing with the cardiovascular cards you’ve been dealt.” Some individuals inherit genes that guarantee progressive and accelerated atherosclerosis that will kill them at an early age despite the best lifestyle.

“…the phrase “follow the money” comes to mind…and since theres no big money to be made….science will attempt to dispell the results and thousands of years of history that proves this dietary system works…”

Using a scientific approach to analyze Esselstyn’s diet (which tries to claim a scientific basis) seemed appropriate to me but I wasn’t motivated by money. I’m looking for what is best for my patients, pure and simple.

The Plural of Anecdote Is Not Data

One man wrote:

“But since this is only anecdotal evidence – it must be junk science…”

Esseslstyn devotees like to post what their personal experience is with the diet but as skeptical medicine has pointed out “the plural of anecdote is not data.” 

One woman described in detail a good response her husband had after starting the diet following a heart attack:

I’m concerned about the skeptical cardiologist going after the person of dr. Esselstyn versus the science, such as quoting how you States dr. Esselstyn came up with the diet. So there may be a personal bias there. I’m sure there are more people out there on the esselstyn diet that are not noted in the study years ago. I hope there is another book coming out

I’ve reviewed in detail my comments about how Esselstyn came up with the diet but I am at a loss to find any ad hominem attack.

This woman went on to say

We will keep you posted, as my husband is willing to get another cardiac Cath and 12 months to visually see the difference after the diet.

I have to point out that if his cardiologist performs a cardiac cath (which carries risks of stroke, heart attack and death) for the sole purpose of checking the effect of the diet he is engaging in unethical medical behavior and likely insurance fraud. By the way, I hope that your husband is on a statin like most of Dr. Esselstyn’s are!:)

and a man wrote

Calling Essylstein ilk shows a little too much biased hatred on your part

Please note the definition of ilk “a type of people or things similar to those already referred to.” No pejorative there. And no ad hominem attack.  I wrote:

 It is possible that the type of vegan/ultra-low fat diets espoused by Esselstyn and his ilk have some beneficial effects on preventing CAD, but there is nothing in the scientific literature which proves it.

I should be able to criticize the methods and ideas of Dr. E without it being considered an attack on his person

Completely wrong. Esselstyn has saved my life. His book explains it all, how the endothelium cells get ruined, inflammation … heart attack proof (his words). One does not continue as head of the Cleveland Wellness Center if one is a quack.

Words are easy to come by on the interweb but Dr. E’s are not supported by science and as for the “Cleveland Wellness Center” it is probably not wise to get me started. Dr. E ‘s program is listed as being part of the Cleveland Clinic Wellness Center which is an attempt to capitalize on the market for pseudoscientific enterprises. He is not the director. The director recently came under intense criticism for promoting anti vaccine quackery. (See here).

The Wellness Center promotes so-called functional, integrative, complementary and alternative approaches. (Functional medicine is fake medicine!) These are approaches that have not been proven to work and could arguably be called quackery. (Let me be clear, however, I am not calling Dr. Esselstyn a quack but the fact that he is part of the Wellness Center does not add any scientific validity to his work.)

“I’m sure there are more people out there on the esselstyn diet that are not noted in the study years ago. I hope there is another book coming out”

Fake News, Fake Science

As a matter of fact, Dr. E has been hard at work over the last 30 years and has added a grand total of 176 patients who are considered “adherent” to the diet: about 6 per year. The “original research” was published in The Journal of Family Practice in 2014. Unfortunately the bad science present in the original publication has only been amplified.

In addition to any randomization or suitable control group for comparison, the data collection techniques are unacceptable:

“In 2011 and 2012 we contacted all participants by telephone to gather data. If a participant had died, we obtained follow-up medical and dietary information from the spouse, sibling, off-spring or responsible representative.”

In other words, there was no actual systematic review of medical records, autopsies or death certificates, just word of mouth from whomever answered the phone.

“Patients who avoided all meat, fish, dairy, and knowingly, any added oils throughout the program were considered adherent.”

Imagine, if you will, that your husband died 10 years ago and you received a call from Dr. E’s office or perhaps Dr. E himself and he asks you if your husband “avoided all meat, fish, dairy and added oils.”  For one thing, it would be very difficult for you to answer that question with any degree of accuracy: was your husband cheating on Dr. E’s diet when you weren’t looking, do you remember his entire diet from 10 years ago?

For another thing, you know that the caller has an agenda. If your husband died of a heart problem the caller is not going to be happy until he/she gets you to admit that your husband had some guacamole on Cinco de Mayo in 2002. If he’s alive and doing well, the caller is likely to be satisfied with a simple answer that , yes, he’s following the diet.

Yes, we have more data from Dr. E but it turns out to be even more incredibly bad than the first lot.

Let the anecdotes and ad hominem attacks begin!

-ACP

Dr. P’s Heart Nuts: Preventing Death In Multiple Ways

The skeptical cardiologist has finally prepared Dr. P’s Heart Nuts for distribution. IMG_8339The major stumbling block in preparing them was finding almonds which were raw (see here), but not gassed with proplyene oxide (see here), and which did not contain potentially toxic levels of cyanide (see here).

During this search I learned a lot about almonds and cyanide toxicity, and ended up using raw organic almonds from nuts.com, which come from Spain.

I’ll be giving out these packets (containing 15 grams of almonds, 15 grams of hazelnuts and 30 grams of walnuts) to my patients because there is really good scientific evidence that consuming 1/2 packet of these per day will reduce their risk of dying from heart attacks, strokes, and cancer.

IMG_7965The exact components are based on the landmark randomized trial of the Mediterranean diet, enhanced by either extra-virgin olive oil or nuts (PREDIMED, in which participants in the two Mediterranean-diet groups received either extra-virgin olive oil (approximately 1 liter per week) or 30g of mixed nuts per day (15g of walnuts, 7.5g of hazelnuts, and 7.5g of almonds) at no cost, and those in the control group received small nonfood gifts).

After 5 years, those on the Mediterranean diet had about a 30% lower rate of heart attack, stroke or cardiovascular death than the control group.

It’s fantastic to have a randomized trial (the strongest form of scientific evidence) supporting nuts, as it buttresses consistent (weaker, but easier to obtain), observational data.

Trademark

I applied for a trademark for my Heart Nuts, not because I plan to market them, but because I thought it would be interesting to possess a trademark of some kind.

The response from a lawyer at the federal trademark and patent office is hilariously full of mind-numbing and needlessly complicated legalese.

Heres one example:

"DISCLAIMER REQUIRED
Applicant must disclaim the wording “NUTS” because it merely describes an ingredient of applicant’s goods, and thus is an unregistrable component of the mark.  See 15 U.S.C. §§1052(e)(1), 1056(a); DuoProSS Meditech Corp. v. Inviro Med. Devices, Ltd., 695 F.3d 1247, 1251, 103 USPQ2d 1753, 1755 (Fed. Cir. 2012) (quoting In re Oppedahl & Larson LLP, 373 F.3d 1171, 1173, 71 USPQ2d 1370, 1371 (Fed. Cir. 2004)); TMEP §§1213, 1213.03(a).

The attached evidence from The American Heritage Dictionary of the English Language shows this wording means “[a]n indehiscent fruit having a single seed enclosed in a hard shell, such as an acorn or hazelnut”, or “[a]ny of various other usually edible seeds enclosed in a hard covering such as a seed coat or the stone of a drupe, as in a pine nut, peanut, almond, or walnut.”  Therefore, the wording merely describes applicant’s goods, in that they consist exclusively of nuts identified as hazelnuts, almonds, and walnuts.

An applicant may not claim exclusive rights to terms that others may need to use to describe their goods and/or services in the marketplace.  See Dena Corp. v. Belvedere Int’l, Inc., 950 F.2d 1555, 1560, 21 USPQ2d 1047, 1051 (Fed. Cir. 1991); In re Aug. Storck KG, 218 USPQ 823, 825 (TTAB 1983).  A disclaimer of unregistrable matter does not affect the appearance of the mark; that is, a disclaimer does not physically remove the disclaimed matter from the mark.  See Schwarzkopf v. John H. Breck, Inc., 340 F.2d 978, 978, 144 USPQ 433, 433 (C.C.P.A. 1965); TMEP §1213.

If applicant does not provide the required disclaimer, the USPTO may refuse to register the entire mark.  SeeIn re Stereotaxis Inc., 429 F.3d 1039, 1040-41, 77 USPQ2d 1087, 1088-89 (Fed. Cir. 2005); TMEP §1213.01(b).

Applicant should submit a disclaimer in the following standardized format:

No claim is made to the exclusive right to use “NUTS” apart from the mark as shown."

I’ve gotten dozens of emails from trademark attorneys offering to help me respond to the denial of my trademark request. Is this a conspiracy amongst lawyers to gin up business?

Nuts Reduce Mortality From Lots of Different Diseases

The most recent examination of observational data performed a meta-analysis of 20 prospective studies of nut consumption and risk of cardiovascular disease, total cancer, and all-cause and cause-specific mortality in adult populations published up to July 19, 2016.

It found that for every 28 grams/day increase in nut intake, risk was reduced by:

29% for coronary heart disease

7% for stroke (not significant)

21% for cardiovascular disease

15% for cancer

22% for all-cause mortality

Surprisingly, death from diseases, other than heart disease or cancer, were also significantly reduced:

52% for respiratory disease

35% for neurodenerative disease

75% for infectious disease

74% for kidney disease

The authors concluded:

If the associations are causal, an estimated 4.4 million premature deaths in the America, Europe, Southeast Asia, and Western Pacific would be attributable to a nut intake below 20 grams per day in 2013.

If everybody consumed Dr. P’s Heart Nuts, we could save 4.4 million lives!

Meditativeterraneanly Yours,

-ACP

If you’re curious about why nuts are so healthy, check out this recent meta-analysis, a discussion of possible mechanisms of the health benefits of nuts complete with references:

Nuts are good sources of unsaturated fatty acids, protein, fiber, vitamin E, potassium, magnesium, and phytochemicals. Intervention studies have shown that nut consumption reduces total cholesterol, low-density lipoprotein cholesterol, and the ratio of low- to high-density lipoprotein cholesterol, and ratio of total to high-density lipoprotein cholesterol, apolipoprotein B, and triglyceride levels in a dose–response manner [4, 65]. In addition, studies have shown reduced endothelial dysfunction [8], lipid peroxidation [7], and insulin resistance [6, 66] with a higher intake of nuts. Oxidative damage and insulin resistance are important pathogenic drivers of cancer [67, 68] and a number of specific causes of death [69]. Nuts and seeds and particularly walnuts, pecans, and sunflower seeds have a high antioxidant content [70], and could prevent cancer by reducing oxidative DNA damage [9], cell proliferation [71, 72], inflammation [73, 74], and circulating insulin-like growth factor 1 concentrations [75] and by inducing apoptosis [71], suppressing angiogenesis [76], and altering the gut microbiota [77]. Although nuts are high in total fat, they have been associated with lower weight gain [78, 79, 80] and lower risk of overweight and obesity [79] in observational studies and some randomized controlled trials [80].

What Can We Learn About Heart-Healthy Lifestyle From The Tsimane People of the Amazon Rainforest ?

The skeptical cardiologist has been in Washington, DC attending the Scientific Sessions of the American College of Cardiology for the last three days in an attempt to upgrade his cardiology knowledge and obtain CMEs for all the various areas he needs CME (echo/nuclear/CT/vascular).

I’ve written some posts for SERMO, a physician social media site,  on interesting presentations from the meeting.

Here’s my take on one paper (published simultaneously in The Lancet) that is of general interest:

I’m a big advocate of coronary artery calcium (CAC) scans for helping make decisions on individual patients with intemediate risk for CAD. Several speakers at this year’s American College of Cardiology Meetings presented convincing data supporting this approach, providing more information to get patients off the fence about taking statins.

However, CAC apparently would be a useless test in the Tsimane (pronounced chee-MAH-nay) people according to a study presented at  the ACC meeting and published simultaneously in The Lancet.

Researchers performed CT scans on 700 of  these “forager-horticulturalist”  people, indigenous to the Bolivian Amazon Rainforest and found very little calcium suggesting that they have an amazingly low rate of atherosclerosis compared to we who have to live in the industrialized world.

Obviously CT scanners are not portable so the Tsimane traveled by river and jeep from the Amazon rainforest to Trinidad, a city in Bolivia and the nearest city with a CT scanner. It took tribe members one to two days to reach the nearest market town by river, and then another six hours driving to reach Trinidad.

85% of the Tsimane people studied had CAC scores of 0. In those over age 75 years, 65% had CAC scores of 0, and just four individuals in their 80s had moderately elevated CAC (> 100). The incidence of CAC > 100 in the entire Tsimane population was 3%, which is about one tenth the prevalence in a matched industrialized population. In addition, incidences of obesity, hypertension, high glucose concentrations, and cigarette smoking were rare overall.

The Tsimane live a subsistence lifestyle that includes hunting, gathering, fishing, and farming. They don’t eat at McDonalds and the men spend almost 7 hours pers day on physical labor. Their diet consists mostly of unprocessed fiber-rich carbohydrates with rice, plantain, manioc, corn, wild nuts, and fruit composing their staples. Fat consumption is 9% of calories versus 23% in the U.S.

Supporters of plant-based diets, of course, seized on these data to support the unsubstantiated claim that meat and dairy consumption is the main cause of atherosclerosis in western civilization.

Hillard Kaplan, one of the authors and a Professor of anthropology at the University of New Mexico said:

 “Their lifestyle suggests that a diet low in saturated fats and high in non-processed fibre-rich carbohydrates, along with wild game and fish, not smoking and being active throughout the day could help prevent hardening in the arteries of the heart. The loss of subsistence diets and lifestyles could be classed as a new risk factor for vascular aging and we believe that components of this way of life could benefit contemporary sedentary populations.”

However, the real cause of the low levels of coronary artery calcification in the Tsimane remains a mystery because this kind of observational study cannot establish causality. Perhaps it is the 17,000 steps a day that they walk  engaging in foraging and horticulturalism. Could it be due to the absence of processed food and added sugar? The Tsimane have high levels of parasitic infections: perhaps that is protecting them.

Of two things I am certain:

-The Tsimane don’t need statins.

-I prefer my lifestyle to munching on manioc and foraging all day.

Semihorticulturally Yours,

-ACP

 

Beware The Bitter Almond

As part of the Health Nuts Project, the skeptical cardiologist has been evaluating walnuts, hazelnuts and almonds which he plans to put in packets and distribute to patients and readers.

Previously, we discovered that most raw almonds from the US have been fumigated with a chemical called propylene oxide and that roasting almonds creates potentially carcinogenic chemicals.

Consequently, after considerable searching, I purchased raw organic almonds from a company called NutsinBulk. These turn out to be from Spain (where pasteurization of almonds is not required) and are quite tasty.

As I was munching on one of these almonds I suddenly noticed an incredibly bitter taste causing me to spit the chewed almond out. My first thought was that this almond had gone “bad” in some way. Perhaps a mold had crept into it. Looking at the pieces I had spit out, however, I could see no discoloration or other visible difference from the “normal” almonds.

Subsequent experimentation has revealed that about one in ten of these almonds is incredibly bitter and there is no way to predict this from  the external appearance of the almond.

The Source of Bitter Almonds

The sweet almond  that we are used to eating in the US is produced from one type of almond tree (Prunus amygdalus var. dulcis) and does not contain poisonous chemicals. However, the bitter almond that I encountered comes from a different type of almond tree (Prunus amygdalus var. amara).

Prunus amara trees were likely the original almond trees but over time the sweet almond trees have been selected for and now dominate. According to the LA Times and Paul Schrade, who provides bitter almonds to restaurants:

Until recent decades, most Mediterranean almond orchards were grown from seed, and the shuffling of genes resulted in a mix of bitter almond trees among the sweet. Growers liked to keep a few bitter trees around because they helped to pollinize the sweet varieties. The inclusion of bitter nuts gave snackers occasional unpleasant surprises, but they deepened the flavor of marzipan, almond milk and glazes for cakes. In Italy, bitter almond paste was traditionally used to make crisp amaretti cookies, and bitter almond extract flavored amaretto liqueur. In Greece, bitter almonds are used in soumada, a sweet syrup. (apparently cooking or adding alcohol eliminates the toxic cyanide)

There’s little large-scale cultivation of bitter almonds left in Spain and Italy, mostly just scattered trees remain, but it is still possible to buy raw bitter almonds at European specialty markets. Morocco and Iran now lead in commercial production of bitter almonds.

What Makes The Almonds Bitter: Amygdalin

The source of the bitterness is amygdalin:

A recessive gene causes bitter almond trees to produce in their shoots, leaves and kernels a toxic compound called amygdalin, which serves as a chemical defense against being eaten. When amygdalin is moistened, it splits into edible benzaldehyde, which provides an intense almond aroma and flavor, and deadly hydrocyanic acid, a fast-acting inhibitor of the respiratory system.

A variety of sources confirm that:

The lethal dose of raw bitter almonds depends on the size of the nuts, their concentration of amygdalin and the consumer’s sensitivity. But scientists estimate that a 150-pound adult might die from eating between 10 and 70 raw nuts, and a child from ingesting just a few.

YIKES!!!When I read this I was shocked. Could it be that consuming 10 of these raw  biter almonds would kill me.? How could I distribute these potentially lethal edibles to my patients?

Amygdalin (Laetrile) , Alternative Cancer Therapy and Quackery

In addition to bitter almonds, significant amounts of amygdalin are found in the stone fruit kernels of apricots, peaches and plums. A synthetic form of amygdalin called Laetrile achieved great notoriety in the 1980s as a cancer treatment. Although research had shown the chemical to be ineffective, it was embraced by “alternative” healers who claimed it was a “natural” cure for cancer which was being suppressed by a conspiracy between the US FDA, big pharma, and the the medical community.

Steve McQueen, suffering from pleural mesothelioma sought the care of a delisted American holistic orthodontist practicing in Mexico, William Kelley. The NY Times reported:

In July 1980, McQueen secretly traveled to Rosarita Beach, Mexico, to be treated by Mexican and American doctors using Dr. Kelley’s regimen. He received not only pancreatic enzymes but 50 daily vitamins and minerals, massages, prayer sessions, psychotherapy, coffee enemas and injections of a cell preparation made from sheep and cattle fetuses. McQueen was also given laetrile, a controversial alternative treatment made from apricot pits.

Although we hear little about Laetrile these days, like most snake oil it is still promoted by alternative medicine. For example, The notorious quack Dr. Mercola still promotes the idea that laetrile is a safe and effective treatment of cancer on his web site with a post that has been viewed over 700,000 times.

You Can Die From Eating Bitter Almonds

Certainly, there is considerable evidence that Laetrile can be toxic or lethal but bitter almonds can also cause lethal cyanide poisoning. A case report describes a woman with colon cancer who turned down potentially curative surgery/chemotherapy and turned to alternative treatments including Laetrile.  A helpful friend gave her a bag of bitter almonds for their “medicinal properties”, whereupon the woman consumed a slurry composed of 12 ground up almonds with water. Within 30 minutes she developed  severe cyanide poisoning with vomiting, abdominal pain, pulmonary edema, severe lactic acidosis and  loss of  consciousness.
Analysis of the bitter almonds showed they contained on average 6.2 mg of cyanide per almond. It is estimated that a lethal dosage of cyanide is 50 mg or 0.5 mg per kg body weight, thus the calculation that 10 almonds could kill someone weighing  60 kg or 132 pounds.
My  Search For Healthy Almonds Continues
The small amount of cyanide one gets from consuming a single bitter almond seems to have little effect. (Although the Mediterranean diet nutritionist Conner Middelman-Whitney , who spent time in Europe and encountered bitter almonds occasionally says that she does remember a weird, numb sensation in the mouth when they were consumed.)  It’s extremely unlikely that one of my patients would consume 10 of the bitter almonds (without reflexively spitting them out as I did) in a short period of time.
When I have consumed them I noticed no adverse effects but after such an encounter I stopped eating the almonds for the day.
However, I’m not interested in testing that theory. (Ability to taste amygdalin or smell cyanide varies between individuals, thus I can’t be certain that the bitter taste would serve as a reliable warning.)
Therefore,  I’ve concluded that I’m not going to distribute these potentially lethal almonds to my patients and will be removing them from the Dr. Pearson Health Nuts Packages.
My search for non-fumigated, non-cyanide-laced , non-carcinogenic almonds continues!
Cyanogenically Yours,
-ACP
N.B. Famous deaths from cyanide poisoning include Hitler and Alan Turing.

 

 

The Impact of Organic Foods On Human Health: European Perspective

The skeptical cardiologist obtains most of his groceries from Whole Foods, something the eternal fiancée insists on.  At least part of my preference is related to Whole Foods’ focus on organic produce and part to their focus on sustainable and healthier meat and fish.

A recent report from the European Parliament reviews the existing scientific evidence regarding the impact of organic food on human health. I think this document, (eu-organic-food) is a reasonable summary of the science in this area. The summary can be broken down into 4 key points:

  1. Very few studies have directly addressed the effect of organic food on human health. They indicate that organic food may reduce the risk of allergic disease and obesity, but this evidence is not conclusive. Consumers of organic food tend to have healthier dietary patterns overall. Animal experiments suggest that identically composed feed from organic or conventional production has different impacts on early development and physiology, but the significance of these findings for human health is unclear.

Meaning: We just don’t have good evidence to support routine use of organic foods.

2. In organic agriculture, the use of pesticides is restricted. Epidemiological studies point to the negative effects of certain insecticides on children’s cognitive development at current levels of exposure. Such risks can be minimised with organic food, especially during pregnancy and in infancy, and by introducing non-pesticidal plant protection in conventional agriculture. There are few known compositional differences between organic and conventional crops. Perhaps most importantly, there are indications that organic crops have a lower cadmium content than conventional crops due to differences in fertiliser usage and soil organic matter, an issue that is highly relevant to human health

My take. A 2014 review concluded that “the frequency of occurrence of pesticide residues was found to be four times higher in conventional crops, which also contained significantly higher concentrations of the toxic metal Cadmium

The review also concluded that ” the concentrations of a range of antioxidants such as polyphenolics were found to be substantially higher in organic crops/crop-based foods…… phenolic acids, flavanones, stilbenes, flavones, flavonols and anthocyanin.

3. Organic milk, and probably also meat, have a higher content of omega-3 fatty acids compared to conventional products, but this is not likely to be nutritionally significant in light of other dietary sources.

My take. I disagree. I wrote about why I only consume full-fat dairy products that are “organic” and come from grass-fed cows here. There are a lot of benefits, beyond increased omega-3 fatty acids, in consuming dairy that comes from cows that eat grass versus corn and are treated properly.

4. The prevalent use of antibiotics in conventional animal production is a key driver of antibiotic resistance. The prevention of animal disease and more restrictive use of antibiotics, as practiced in organic production, could minimise this risk, with potentially considerable benefits for public health.

My take. I agree. Cut out the antibiotics. Other countries seem to be able to do this.

I would also agree with the conclusion of  The Lancet’s editorial comment (Organic Food: Panacea for Health?)  on the EU paper:

Large, prospective, long-term studies are needed as well as deeper examination of agricultural policy and health. Much still rests on the provision of robust multidisciplinary research to guide future food choices for health.

Until we get such studies, I will be erring on the side of caution and consuming food with the least amount of pesticides, cadmium and antibiotics possible.

EUingly Yours,

-ACP

Nutella: Healthy and Natural Spread or Highly Processed, Slickly Marketed Junk Food?

It’s World Nutella day according to Ferrero, the Italian confectonery company and manufacturer of the globally beloved hazelnut-based spread.screen-shot-2017-02-05-at-6-28-42-am

“With Nutella we spread positive energy to families to bring more happiness to the world” we are informed. On this day, apparently, the world should be spreading Nutella on as many food products as possible, ramping up positive energy levels to unprecedented levels.

Here are some of the other products Ferrero sells:screen-shot-2017-02-05-at-9-08-21-am

Three of them are clearly recognized by consumers as candy.

Should Nutella be in the same category as tic-tacs?

 

 

Nutella Ingredients

Perhaps in anticipation of World Nutella Day, a graphic has been appearing on Twitter:

nutella-englisy

detailing the ingredients of Nutella. The English version of this was posted on Reddit on a subreddit that I can’t mention on my family-friendly blog. It is a translation of a graphic that was published in German originally.

screen-shot-2017-02-05-at-8-18-31-am
If you thought you were getting mostly hazelnuts under the lid as this Nutella website graphic implies, you will be disappointed.

I’m not sure where the original data for the graphic came from but it seems to be a reasonable illustration of how much of Nutella is made up of palm oil and sugar. A 2 tbsp serving of Nutella (37 grams) contains 12 grams of fat, 21 grams of sugar and 2 grams of protein. Only about 12% of Nutella comes from actual hazelnuts.

I don’t have any concerns from a cardiovascular risk standpoint with the fat content of either the palm oil or the hazelnuts in Nutella.

But the 5 teaspoons of sugar per serving screen-shot-2017-02-05-at-8-44-16-am

are just still another source of empty
sugar calories adding to the daily dietary glut of sugar consumers face when consuming highly processed foods.

Nutella definitely is a highly processed, highly sugared product that shouldn’t be a regular part of a healthy Mediterranean diet. Most of the ingredients have gone through  complex sourcing and factory processing although their marketing material strains to emphasize the freshness and naturalness of these ingredients.

screen-shot-2017-02-05-at-6-30-27-am

One ingredient not depicted on the now viral graphic of Nutella is vanillin. From Nutella’s ingredient graphic one might think the screen-shot-2017-02-05-at-6-34-38-amvanillin is being extracted from (per wikipedia)

“the seed pods of Vanilla planifolia, a vining orchid native to Mexico, but now grown in tropical areas around the globe.”

In reality, however, the Nutella people,  ” use synthetic vanillin, an aroma identical to the one naturally present in the vanilla pod.”

Is the Palm OIl In Nutella Carcinogenic?

Some question the healthiness of the palm oil in nutella, either due to its high saturated fat content or its carcinogenic potential. A european food safety authority paper in May, 2016 declared certain toxins found in palm oil in particular to be “genotoxic and carcinogenic”

EFSA assessed the risks for public health of the substances: glycidyl fatty acid esters (GE), 3-monochloropropanediol (3-MCPD), and 2-monochloropropanediol (2-MCPD) and their fatty acid esters. The substances form during food processing, in particular, when refining vegetable oils at high temperatures (approx. 200°C)

The highest levels of GE, as well as 3-MCPD and 2-MCPD (including esters) were found in palm oils and palm fats, followed by other oils and fats. For consumers aged three and above, margarines and ‘pastries and cakes’ were the main sources of exposure to all substances.

As a result, According to Reuters, In Italy, some products containing palm oil have been removed from grocer’s shelves and one pastry company has eliminated palm oil from it products, labeling them as “palm oil free.”

High temperatures are used to remove palm oil’s natural red color and neutralize its smell, but Ferrero says it uses an industrial process that combines a temperature of just below 200C and extremely low pressure to minimize contaminants.

Nutella has fought back, defending its use of palm oil, with television and print advertisements.

Healthier Alternatives To Nutella

Conner Middleman, nutritionist , cooking instructor and author of Zest For Life, has shared with me her recipe for Nutritella, a healthier version of Nutella you can make at home. She points out in her intro to the recipe:

Nutella was invented in the 1940s in the Piedmont region of northern Italy, where hazelnuts grow plentifully. Alas, modern, store-bought Nutella contains a mere 13% hazelnut and only a hint of cocoa; the rest is made up of sugar, palm oil and artificial vanilla flavoring. My home-made version of Nutella, on the other hand, contains very little sweetener (in the form of raw honey), 3 tablespoons of flavonoid-rich dark cocoa, and about 90% hazelnuts, which boast a particularly high concentration of antioxidants and healthy fats (mostly monounsaturated). This is not to say that you should eat this spread by the tablespoonful; its high fat content means it’s high in calories and it should be enjoyed in sensible amounts (1-2 tbsp/day). The good news is that a high-fat food such as this one keeps you sated for longer, and because it is made from whole, real foods, it’s not only rich in calories, but also in nutrients! 

Here’s the recipe:

1 cup/125g toasted hazelnuts (Trader Joe’s roasted Oregon hazelnuts work great here; alternatively buy plain, raw hazelnuts and roast them yourself as described below)

½ oz/2 tbsp/15g unsweetened cocoa

3 tbsp hazelnut oil (La Tourangelle is my favorite brand – available in the oils section of good supermarkets or online)

3 tbsp honey or maple syrup

2 tsp alcohol-free vanilla extract (e.g., Trader Joe’s)

6-8 tbsp milk/plant milk/water

If you are roasting the hazelnuts from scratch, preheat oven to 350F. Place nuts on a dry, clean baking sheet and roast for 8 minutes (set timer). Remove and tip hot nuts onto a clean kitchen towel (pictured here).

As they cool, the skins will loosen, crack and flake off. Gather up the towel by its corners and scoop together into a tight bundle. Hold the bundle with one hand and knead the nuts with the other through the cloth to rub the skins off them. Place bundle back on a flat surface and open; lift out the nuts and lightly shake off the skins. (Leave some skin on the nuts – it’s where most of the antioxidants reside.)

If using pre-roasted nuts, start here.

Place the hazelnuts in an electric blender with the cocoa, oil, honey/maple syrup and vanilla extract. Process on “high” for about 30-40 seconds until all the ingredients come together in a coarse paste.

With the motor running, add milk or water (whichever using), a tablespoon at a time, and keep processing until the mixture reaches the desired consistency.

Transfer to a clean glass jar and refrigerate. Keeps for at least 2 weeks.

You can check out Conner’s excellent website, Modern Mediterranean, replete with more recipes and information on the cancer-fighting benefits of the Mediterranean diet,  here. and her You-tube channel here.

Of course, the skeptical cardiologist Heart Nuts project advocates just eating  heartnutsunadulterated hazelnuts along with other healthy drupes, nuts and legumes for snacking and soon we will be distributing these to you using our trademark-pending walnut-auscultating squirrel, Sparky.

Notnutellingly Yours,

-ACP

 

Say Hello To Heart Nuts

The skeptical cardiologist nut project (aka the nutty cardiologist project) now has a logo. Say hello toheartnuts  the world’s only walnut-auscultating promoter of nut consumption. Soon you will see his smiling face on the packets of nuts I’ll be handing out to help defeat cardiovascular disease.

Special thanks to my wonderful Washington University computer-science major and  bass guitar wiz daughter, Gwyneth, for creating the squirrel doctor during her winter break.

I promised 10 bags of nuts and “oodles of glory” to the reader whose name I selected but I can’t identify who proposed Heart Nuts. Let me know who you are and I’ll get the nuts to you.

Now I need a name for the squirrel.

Squirrelly Yours,

-ACP

See here for my post on KIND bars versus Simply Nuts and here for my review of nuts, drupes and legumes and reduced mortality.

N.B. Nuts are recognized as promoting reduced cholesterol, oxidative stress, and insulin resistance thereby reducing the risk of cardiovascular disease.

I’ve focused on their cardiovascular benefits (perhaps mediated by dietary fiber, magnesium, polyunsaturated fats, vitamin E, and antioxidants)  but recent studies suggest  other health benefits that could contribute to improved longevity.

Nuts contain bioactive compounds both known (ellagic acid, anacardic acid, genistein, resveratrol, and inositol phosphates) and unknown which may reduce the risk of cancer or other chronic diseases.

A recent meta-analysis found that consuming one serving of nuts per day was associated with a 15% lower  risk of any cancer and a 22% lower risk of dying from any cause.

Embrace the nuts I say!

 

Sheepshead Fish: Vulnerable and Gender Fluid Yet Mighty Tasty

The skeptical cardiologist and his Eternal Fiancee’ have escaped dreary and oceanopenic St. Louis and are spending a week in allegedly sunny and definitely beachy San Diego.

Upon arrival we took in a Farmer’s Market in Little Italy and stumbled into Ironside Fish and Oyster.screen-shot-2017-01-22-at-9-07-04-am
Always in search of heart-healthy, unique and local fish dishes, I spotted on the menu a luncheon special of sheepshead fish.

Kelly Fukushima is the local fisherman who caught my fish
Kelly Fukushima is the local fisherman who caught my fish.

California sheepshead (Semicossyphus pulcher), the existence of which I was previously unaware, turned out to be a fascinating and most delicious fish.

casheepshead

Before I could order it, I had to verify that I wasn’t contributing to the extinction of a species.  The IUCN Red List of Threatened species lists the CS as “vulnerable” because:

“The natural history of this species, including its limited geographic range along inshore habitat, the likely increasing interest in the fishery and the currently unsustainable fishing levels (according to the models of Alonzo et al. 2004), together with the difficulties in enforcing existing regulations strongly suggest that this species will continue to decline if stronger protective action is not put into place. “

After learning the CS was vulnerable, I had to make a critical decision: should I eat it before it disappeared, robbing me of a chance to ever taste it, or should I order something that wasn’t vulnerable, thus contributing to the preservation of the continuing biodiversity of the planet. I elected to taste it.

Gender Fluid Fish

Further research revealed that the CS transitions from a reproductively functional female at birth, to a functional male during the course of a lifespan in response to social factors (?reverse Bruce Jenner).

According to evolution.berkeley.edu this is termed sequential hermaphroditism:

In some sequentially hermaphroditic fish species, animals develop first as male and then switch to female (a condition called protandry), and in others, the individuals develop first as female and then switch to male (protogyny).

Clownfish (as in Finding Nemo) do the opposite of the sheepshead and are protandrous:

This species lives within sea anemones in groups of two large fish and many small fish. The two large fish are the only sexually mature fish and are a male and female breeding pair. All of the smaller fish are male. If the large breeding female is removed, her male mate changes sex to female and the next largest fish in the group rapidly increases in size and takes over the role as the sexually mature male.

While waiting for the vulnerable and sequentially hermaphroditic sheepshead to arrive, I sampled an equally

img_8160stupendous and heart-healthy side of cannelloni bean cassoulet. Chock full of Mediterranean diet essentials including kale, beans and mustard seeds, it worked really well as an appetizer.

 

Do not make the mistake of looking at this youtube video while waiting for your sheepshead entree’ as I did. The disturbing human-like teeth will not be part of your meal.

Finally, the 4 ounces of CS arrived, perfectly prepared a la plancha,

img_8162with an accompanying lemon butter sauce that was divine. Although butter is not officially a big part of the Mediterranean diet, frequent readers of the skepcard know that dairy fat does not make you fat or promote heart disease, and is fine (in moderation of course) as part of a heart-healthy diet.

Speaking of lingering bad dietary advice, if you investigate the nutritional content of sheepshead at a site like SELF Nutrition, the screen-shot-2017-01-22-at-10-18-54-amold canard that we should be limiting our dietary cholesterol raises its ugly head. Because sheepshead contain significant amounts of cholesterol (presumably from carnivorously munching on shellfish with its scary human-like choppers), the misguided nutritionists at SELF Nutrition and other would-be nutritionistas pronounce it as not optimally healthy.

Semiccossyphusilly Yours

-ACP

PS. If you’d really like to get your nerd on about sequential hermaphroditism check out this graphic showing the independent evolution of this feature across different phylogenetic lineages!

hermaphroditismtree

 

 

 

 

What Does The Death of Robert Atkins Tell Us About the Atkins Diet?

In the spring of 2003 at the age of 72 years, Robert Atkins, the cardiologist and  controversial promoter of high fat diets for weight loss, fell  on the sidewalk in front of his Atkins Center for Complementary Medicine in Manhattan.  He lost his footing on a patch of ice, slipped and banged his head on the pavement.  At the time of his fall his book ”Dr. Atkins’ New Diet Revolution” lead the NY times paper-back best seller list.

He was taken to nearby Cornell Medical Center where a clot was evacuated from his brain. Thereafter he lapsed into a coma and he spent 9 days in the ICU, expiring on April 17, 2003.

screen-shot-2016-11-27-at-8-44-55-amThe cause of death was determined by the New York Medical Examiner to be “blunt injury of head with epidural hematoma.”

An epidural hematoma is a collection of blood between the skull and the tough outer lining of the brain (the dura) which can occur with blunt trauma to the head which results in laceration of the arteries in this area. It is a not  uncommon cause of death in trauma . Actress Natasha Richardson (skiing, see below)  died from this. Nothing about the manner in which Robert Atkins died would suggest that he was a victim of his own diet any more than  Natasha Richardson was.

However, within the year a campaign of misinformation and deception spear-headed by  evangelistic vegans would try to paint the picture that Atkins died as a direct result of what they perceived as a horribly dangerous diet.

Michael Bloomberg, then New York major,  was quoted as saying

“I don’t believe that bullshit that [Atkins] dropped dead slipping on the sidewalk.”

According to the Smoking Gun:

“The 61-year-old billionaire added that Atkins was “fat” and served “inedible” food at his Hamptons home when Bloomberg visited. The mayor’s inference, of course, was that Atkins was actually felled by his meat-heavy diet, that his arteries were clogged with beef drippings. “

Enter The Vegans

Richard Fleming, a physician promoting prevention of cardiovascular disease through vegetarianism and with close ties to an organization  called Physicians Committe for Responsible Medicine (PCRM) sent a letter to the NY Medical Examiner requesting a copy of the full medical examination of Atkins. The NYME office  should have only issued copies of this report to physicians involved in the care of Atkins or next of kin but mistakenly complied with this request.  Fleming, who would subsequently publish his own low fat diet book, conveniently gave the report to PCRM which is directed by animal rights and vegan physicians.

screen-shot-2016-12-18-at-7-50-24-am
From the front page of pcrm.org. The two major concerns of the group are converting everyone to veganism and animal rights.

Neal Barnard, the President of PCRM, in an incredibly unethical move sent the letter to the Wall Street Journal with the hope that the information would destroy the popularity of the Atkins diet, a diet he clearly despises..  Barnard said the group decided to publicize the report because Atkins’ “health history was used to promote his terribly unhealthy eating plan..” The WSJ subsequently published an article summarizing the findings.

To this day, advocates of vegetarianism and low fat diets, distort the findings of Atkins’ Medical Examination in order to depict high fat diets like his as dangerous and portray Atkins as a victim of his own diet.

To scientists and thoughtful, unbiased physicians it is manifestly apparent that you cannot base decisions on what diet plan is healthy or effective for weight loss on the outcome of one patient. It doesn’t matter how famous that one person is or whether he/she originated and meticulously followed the diet. It is a ludicrous concept.

Would you base your decision to engage in running  based on the death of Jim Fixx?  Fixx  did much to popularize the sport of running and the concept of jogging as a source of health benefit and weight loss. He died while jogging, in fact. An autopsy concluded that he died of a massive heart attack and found advanced atherosclerosis (blockage) of the arteries to his heart.

Fixx inherited his predisposition to heart disease and couldn’t run himself out of it. Multiple studies over the years have documented the benefit of regular aerobic exercise like running on longevity and cardiovascular risk.

Would you based your decision to engage in  a very low fat diet based on how Nathan Pritikin died?  Pritikin authored an extremely popular book emphasizing eliminating fat from the diet but developed leukemia and slashed his wrists,  committing suicide at the age of 69 years. Would vegetarians accept the premise that their preferred diet results in leukemia or suicidal depression based on Pritikin’s death?

The Distortion of Atkins Death

The NYME report lists Atkins weight at autopsy as 258 pounds. Low-fat zealots seized on this fact as indicating that Atkins was screen-shot-2016-12-17-at-5-32-56-ammorbidly obese throughout his life.  For example, a  you-tube video of an audio interview of Atkinas online posted by “plant-based coach”  has this obviously photoshopped head of Atkins put on the body of a morbidly obese man. Atkins actually weight around 200 pounds through most of his life and a hospital note on admission showed him weighing 195 pounds. A substantial weight gain of 63 pounds occurred in the 9 days after his admission due to the accumulation of fluid volume and swelling which is not uncommon in the critically ill.

screen-shot-2016-11-27-at-8-42-59-amscreen-shot-2016-11-27-at-8-42-39-am

No autopsy was performed on Atkins but the NYME wrote on the document that he had “h/o of MI, CHF, HTN.”

MI is the acronym for a myocardial infarction or heart attack. As far as we can tell without access to full medical records, Atkins never had an MI. He did have a cardiac arrest in 2002. While most cardiac arrests are due to a cardiac arrhythmia secondary to an MI they can also occur in patients who have a cardiomyopathy or weakness in the heart muscle from causes other than MI. In fact, USA Today reported that Stuart Trager, MD,  chairman of the Atkins Physicians Council in New York, indicated that Atkins was diagnosed with a cardiomyopathy at the time of his cardiac arrest and that it was not felt to be due to blocked coronary arteries/MI. Cardiomyopathy can be caused by viral infections or nonspecific inflammation of the heart muscle and would have nothing to do with diet.

Trager also stated that Atkins, as a result of the cardiomyopathy, had developed heart failure (CHF) and the pumping ability of his heart (ejection fraction )had dropped to 15 to 20%. While CHF can be due to heart attacks causing heart weakness in Atkins case it appears it was unrelated to fatty blockage of the coronary arteries causing MI and therefore not related in any way to his diet.

What Does Atkins Death Tell Us About His Diet 

The information about Atkins death tells us nothing about the effectiveness or dangers of his diet.  In one individual it is entirely likely that a genetic predisposition to cancer or heart disease overwhelms whatever beneficial effects the individual’s lifestyle may have had. Thus, we should never rely on the appearance or the longevity of  the primary promoter of a diet for the diet’s effectiveness.

The evangelists of low-fat, vegan or vegetarian diets like PCRM have shamelessly promoted misinformation about Atkins death to dismiss high fat diets and promote their own agenda. If their diets are truly superior it should be possible to utilize facts and science to promote them rather than a sensationalistic, distorted focus on the body of one man who slipped on the ice and fell to his death.

Epidurally Yours

-ACP

Addendum: Earlier versions of this post cited  MLB pitcher Brandon McCarthy as a victim of a fast ball to the head causing epicardial hematoma. I was corrected by astute reader Fred N who pointed out that McCarthy is still pitching for the Dodgers and was hit by a line drive (off the bat of Erick Aybar). McCarthy had emergency surgery for the epicardial hematoma in 2012. His diet had nothing to do with the epicardial hematoma.

N.B. Natasha Richardson fell while taking beginner skin lessons at a Canadian Ski resort. According to a release from the resort:

Natasha Richardson fell in a beginners trail while taking a ski lesson at Station Mont Tremblant,” the statement said. “She was accompanied by an experienced ski instructor who immediately called the ski patrol. She did not show any visible sign of injury but the ski patrol followed strict procedures and brought her back to the bottom of the slope and insisted she should see a doctor.

“As an additional precautionary measure, the ski instructor as well as the ski patrol accompanied Mrs. Richardson to her hotel,” the statement continued. “They again recommended she should be seen by a doctor. The ski instructor stayed with her at her hotel. Approximately an hour after the incident Mrs. Richardson was not feeling good. An ambulance was called and Mrs. Richardson was brought to the Centre Hospitalier Laurentien in Ste-Agathe and was later transferred to Hôpital du Sacre-Coeur.”

A spokesperson for the resort noted Richardson was not wearing a helmet while skiing and didn’t collide with anything when she fell. Thursday, in the wake of her death, Quebec officials said they are considering making helmets mandatory on ski slopes, according to The Associated Press.”

The last time I skied I found myself falling and banging my head an extraordinary amount. If I ever ski again (in contrast to my resistance to bike helmets) I plan to wear a helmet.

 

Roasted vs. Raw Almonds: Which Are Healthiest And Most Cardioprotective?

As part of the Dr. P Heart Nuts Project, the skeptical cardiologist has been trying to determine what constitutes the best and most cardioprotective almonds.

Previously I decided  that i would not be consuming or handing out almonds pasteurized with propylene oxide (PPO). PPO was used as a racing fuel before being banned and is used in thermobaric weapons (one of my least favorite weapons of mass destruction) and in making polyurethane plastics and is a recognized carcinogen.
Since 2004 almost all “raw” almonds consumed in the US have been treated with PPO.

Cardioprotective Almonds: Best Raw or Roasted?

There are two issues with roasting: are we destroying good nutrients and are we creating bad chemicals?

Effects of Roasting on Good Nutrients

The cardioprotective component of nuts and almonds is presumed  related to phytochemicals, especially phenolics and flavonoids which may act as antioxidants. But truly we don’t know with any certainty which of the many potentially beneficial components-minerals, vitamins, fatty acids, proteins are helpful. And we have little understanding of how roasting, steaming, soaking, fermenting, germinating, or fumigating affects the cardioprotective components.

In terms of measurable important macronutrients, vitamins and minerals there is no significant difference between roasted and raw nuts.

One study  compared consuming roasted versus raw hazelnuts on various cardiovascular parameters. Compared with baseline, consuming both forms of hazelnuts significantly improved HDL-cholesterol and apolipoprotein A1 concentrations, total-C/HDL-C ratio, and systolic blood pressure. These changes would be expected to result in improved cardiovascular outomes.

One argument I hear frequently from patients worried about weight gain is that nuts are very energy dense and therefore will contribute to weight gain if added to the diet or consumed as a snack.

In the roasted versus raw hazelnut study:

However, no evidence for weight gain was observed with the consumption of either raw or dry roasted, lightly salted hazelnuts in the present study, and in fact, small reductions in weight were observed. Results of the present study further add to previous research, which suggests that regular nut consumption results in either no weight gain or less weight gain than predicted This may be explained by dietary compensation, inefficient energy absorption, and an increase in metabolic rate.

Thus, neither roasted nor raw nuts contribute to weight gain.

I particular like one line from the conclusions of this study:

both forms of nuts are resistant to monotony

Really! That is tremendously reassuring because I have always worried  about my nuts getting bored.

Bottom line: Probably little change in the good components of nuts and almonds with roasting.

Effects of Roasting Almonds on Increasing Bad Chemicals

About a third of almonds and nuts are consumed in roasted form because a majority of people prefer the taste created by the Maillard reaction during roasting. Almonds can be roasted at home and the typical recommendation is an oven temperature of 350 degrees which corresponds to 177 degrees Celsius.

An analysis from the Winnipeg Health Authority found that roasting at temperatures higher than 140 degrees Celsius has some potentially worrisome consequences:

Lipid oxidation

-High heat used during the processing of nuts has the potential to develop lipid oxidation products, which include trans fatty acids. Trans fatty acids, while not present in raw nuts, were found to be significantly higher in roasted pistachios, peanuts, and almonds (0.5-0.9g/100g).
-Trans fat is known to increase LDL cholesterol and decrease HDL cholesterol, leading to increased cardiovascular disease risk.
-While roasting temperature was found to substantially increase lipid oxidation, roasting time had less of an effect on lipid oxidation. It is therefore recommended to roast nuts at a moderate temperature (130-150°C), for a longer period of time, rather than roasting at high heat for a shorter period of time (reference here)

Acrylamide

-Acrylamide has been identified as a probable carcinogen to humans. The amount of free aspargine in almonds makes them more susceptible to the Maillard reaction, which results in acrylamide formation. Time and temperature are known determinants of acrylamide formation in foods. Hence, darkly roasted almonds were found to have a much higher amount of acrylamide than lightly roasted almonds. The amount of acrylamide that is initially formed after processing was found to decrease over time. Acrylamide content of almonds therefore differs widely depending on roasting time and temperature, as well as length of time after processing.
-It was observed that almonds processed under roasting temperatures of 140-180°C led to the accelerated production of acrylamide. It is therefore recommended to roast almonds below 140°C

The acrylamide study authors noted that:

Almonds of European origin contained significantly less free asparagine and formed significantly less acrylamide during roasting as compared to the almonds from the U.S. Roasted hazelnuts contained very little acrylamide because of the low content of free asparagine in the raw nut.).

Bottom Line: Roasting almonds has the potential for creating some bad chemicals which might negate their beneficial effects.

I asked Whole Foods (my typical almond source) about the roasting process for their roasted almonds and they responded thusly:

“PPO and chemical methods of pasteurization are against our Quality Standards. Our almonds are pasteurized with steam. Our almonds are roasted with canola oil at 148 degrees (celsius).”

Yikes! Canola oil! 148 degrees! (When I asked Whole Foods did they really mean 148 degrees Celsius, the response was , no, I meant 148 degrees Fahrenheit. The skeptical cardiologist wonders.)

img_7965
The first sack of cardioprotective nuts from Dr. Pearson’s nutshop. There are from the Superior Nut Company. I’m still working on the packaging. They are raw and not treated with PPO.

It appears even Whole Foods roasted almonds have the potential for containing harmful acrylamides and trans-fats therefore when the skeptical cardiologist starts handing out packets of his cardioprotective nuts the almonds will be raw and they will be from Spain just like the almonds consumed in the landmark PREDIMED study that established their heart benefits.

Happy Thanksgiving!I hope you are able to stay resistant to monotony during this festive season.

-ACP

Speaking of resisting monotony, did you know this about thermobaric weapons?

“The [blast] kill mechanism against living targets is unique–and unpleasant…. What kills is the pressure wave, and more importantly, the subsequent rarefaction [vacuum], which ruptures the lungs…. If the fuel deflagrates but does not detonate, victims will be severely burned and will probably also inhale the burning fuel. Since the most common FAE fuels, ethylene oxide and propylene oxide, are highly toxic, undetonated FAE should prove as lethal to personnel caught within the cloud as most chemical agents.”