by Marion Nestle

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Oct 18 2021

Industry-funded study of the week: Cherries…Surprise! A null result!

This one is so unusual that it demands attention.

The study: Thirty Days of Montmorency Tart Cherry Supplementation Has No Effect on Gut Microbiome Composition, Inflammation, or Glycemic Control in Healthy Adults.  Angela R. Hillman1* and Bryna C. R. Chrismas  Front. Nutr., 16 September 2021

Hypothesis: Polyphenols in Montmorency Tart Cherry products would influence the gut microbiome composition,which would modulate changes in inflammatory markers and glucose regulation.

Methods: Four groups of subjects consumed either concentrate or freeze-dried capsules or their corresponding placebos for 30 days.

Results: Only one of several inflammatory markers was reduced.  There were no changes in insulin, glycated albumin, or composition of bacterial phyla, families, or subfamilies for the duration of this study nor was there a change in species richness.

Conclusion: These data suggest that 30 days of MTC supplementation does not modulate the gut microbiome, inflammation, or improve glycemic control in a healthy, diverse group of adults.

Funding: This study was funded by a grant from The Cherry Marketing Institute.

Comment: I have previously posted several studies paid for by cherry trade associations; these yielded results demonstrating truly remrkable health benefits of cherry consumption (see this one on prevention of dementia, for example).

But this study found cherry extracts to do nothing special.

Applause to these authors!

All fruits have antioxidants of one kind or another.  Eating a variety of delicious fruits should be a pleasure, not a medical duty.

It’s past the cherry season in the Northeast where I live, but if you can get them, enjoy!

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Oct 14 2021

The latest in weird waters

I haven’t said much about unusual bottled waters since 2018 when I wrote about bottled ocean water.

2018 was also when I went on The Daily Show to be interviewed by Desi Lydic as the straitperson for her deep dive into “raw water” (surely, the funniest thing I’ve ever done).

Well, you can’t make up these things.

  • Karma Water launches CBD Water:  Karma Water – a US brand which Constellation Brands has a minority stake in – has launched Karma CBD Water: the first such beverage in its wellness and probiotic waters beverage portfolio…. Read more
  • Shine Water with Vitamin D: That this is about marketing more than health is evident from at least one review: “The brand messaging is where things go a little off track, slamming you with callouts and copy, trying to establish credibility for the drink’s functionality. These include a large green vitamin D callout, a Vitamin D Council “approved” logo, a “developed by physicians” logo, two mentions of their charitable intentions (5 percent of profits — a problem in that most startup beverage companies have zero or minimal profits for a while).
  • Psychedelic Water: A friend who prefers to remain anonymous forwarded an e-mail from this company: “We would love to arrange an interview with you and the team of disruptors behind the launch of the first legal psychedelic, mild mood-boosting, hangover-free fun…Psychedelics have been touted in the media lately for the extreme benefits they have on mental health, depression, happiness, mood-stabilizing, and overall general well-being. Psychedelic Water works because it is the world’s first legal psychedelic blend of kava root, damiana leaf, and green tea A leaf extract for an experience like no other.

My only comment:  Really, there are better ways to get CBD, vitamin D, or even high if that’s what you are looking for.  Me?  I’m sticking to plain, ordinary drinking water, sometimes fizzed up a bit.

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Oct 11 2021

Industry-funded study of the week: artificially-sweetened sodas and calorie intake

The study: Effects of Unsweetened Preloads and Preloads Sweetened with Caloric or Low-/No-Calorie Sweeteners on Subsequent Energy Intakes: A Systematic Review and Meta-Analysis of Controlled Human Intervention Studies.  Han Youl Lee, Maia Jack, Theresa Poon, Daniel Noori, Carolina Venditti, Samer Hamamji, Kathy Musa-Veloso.  Advances in Nutrition, Volume 12, Issue 4, July 2021, Pages 1481–1499.

Methods: Review and meta-analysis of previously published studies.

Conclusions: Unsweetened or LNCS-sweetened preloads appear to have similar effects on intakes when compared with one another or with CS-sweetened preloads. These findings suggest that LNCS-sweetened foods and beverages are viable alternatives to CS-sweetened foods and beverages to manage short-term energy intake.

Funder: “The American Beverage Association provided funding for the work presented herein.”

Author disclosures: MJ is a paid employee of the American Beverage Association. Intertek Health Sciences, Inc.(HYL, TP, DN, CV, SH, KMV), works for the American Beverage Association as paid scientific and regulatory consultants.”

Comment: The great puzzle about artificial sweeteners is that they are not strongly associated with reduced calorie intake in most studies, perhaps because sweet tastes encourage people to eat more calories.  This industry-funded study is designed to counter that idea.  It concludes that low- or no-calorie sweeteners have no special effect on calorie intake.  The American Beverage Association represents soft drink companies, predominantly Coke and Pepsi, most of them manufacturing drinks sweetened with sugars or high-fructose corn syrup (with calories) or chemical sweeteners (no or low-calorie).  These companies are happy to have you buy either kind, and they don’t want you worrying about all the things you’ve heard about artificial sweeteners.

The Association’s rules for research are here.   But it is unlikely to fund proposals for research that might come up with inconvenient conclusions.

Reference: For a summary of research on the “funding effect”—the observations that research sponsored by food companies almost invariably produces results favorable to the sponsor’s interests and that recipients of industry funding typically did not intend to be influenced and do not recognize the influence—see my book, Unsavory Truth: How Food Companies Skew the Science of What We Eat.

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Oct 7 2021

Yes, you can make ice cream from infant formula and breast milk

Last week, I posted a list of articles about odd ice cream flavors, mostly Lithuanian.  Several readers pointed out that the links all went to the same article (oops, my bad).

They particularly wanted to see the ones about ice cream made from infant formula and breast milk.

Really?  People do this?  Yes, they do.

Especially in the UK.

If you are in the UK, you can buy commercial products, like one “made with love in the Lake District.”

Or you can make your own with breast milk or formula.  A company tried this in 2011, but got into trouble over safety issues.

It’s pretty easy to do this at home.

Have on hand:

  • A banana or other fruit, sliced.
  • 2 ounces of breast milk or formula.
  • A blender.

Freeze the fruit.

Place frozen fruit in the blender.  Slowly add breast milk or formula.

Blend until the mix reaches a soft serve texture.

Serve immediately or store in freezer.

Note: no unhealthy additives.  Teething babies might like it.

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Oct 6 2021

What’s up with African Swine Fever?

What got my attention was this headline: The World’s Deadliest Pig Virus Creeps Closer to the U.S.

The Western Hemisphere registered its first outbreak of African swine fever virus in almost 40 years on July 28 at pig farms in the Dominican Republic. By September the devastating disease had been found in neighboring Haiti. Now the U.S., the world’s largest pork producer after China, is scrambling to keep the malady from washing ashore and shutting down its $7.7 billion pork export industry.

Unless you are a pig farmer, you probably don’t know much about this disease.  According to the USDA, 

African swine fever is a highly contagious and deadly viral disease affecting both domestic and feral swine of all ages. ASF is not a threat to human health and cannot be transmitted from pigs to humans. It is not a food safety issue…It has never been found in the United States – and we want to keep it that way.

Why?

ASF is a devastating, deadly disease that would have a significant impact on U.S. livestock producers, their communities and the economy if it were found here. There is no treatment or vaccine available for this disease. The only way to stop this disease is to depopulate all affected or exposed swine herds.

“Depopulate” is a euphemism for slaughtering the pigs.  Hence the concern about its likely entry into the U.S.

I get an almost daily newsletter, African Swine Fever Update with frequent updates on where the virus is doing its worst.

But now hopeful news: USDA’s ASF vaccine candidate successful in tests

USDA has been working on a vaccine and just announced its success.

Newly published USDA research, as highlighted in the journal Transboundary and Emerging Diseases, shows that ARS scientists have developed a vaccine candidate with the ability to be commercially produced while still maintaining its vaccine efficacy against Asian ASFV strains when tested in both European and Asian breeds of swine…The onset of immunity was revealed in approximately one-third of the swine by second week post-vaccination, with full protection in all swine achieved by the fourth week.

So, Covid vaccines for us, ASF vaccines for pigs. Let’s go for both!

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Oct 4 2021

Industry-sponsored study of the week: glyphosate (Roundup) in food

Thanks to Tufts Professor Sheldon Krimsky for sending me this gem.

Residues of glyphosate in food and dietary exposure.  John L. Vicini,Pamela K. Jensen,Bruce M. Young,John T. Swarthout, Comprehensive Reviews in Food Science and Food Safety.  First published: 16 August 2021.

The study: A review of existing data on amounts of glyphosate residues in foods as compared to maximum limits or tolerances set by European or American regulatory agencies.  The study also reviewed data on levels of glyphosate in urine samples.

Conclusion: “Exposures to glyphosate from food are well below the amount that can be ingested daily over a lifetime with a reasonable certainty of no harm.”

Conflicts of interest:  “The authors are all employees of Bayer Crop Science, a major manufacturer of glyphosate.”
Comment: Glyphosate is used to kill weeds on fields of genetically modified crops, most notably corn and soybeans, but also other crops engineered to resist its action.  US farmers use a lot of it—300 million pounds a year on average.  Glyphosate has been linked to cases of non-Hodgkin lymphoma in people exposed to large amounts.  Its maker, Bayer Crop Science, settled these cases for billions of dollars last year.  It also said it would stop selling glyphosate for home use.  Bayer wants you to stop worrying about glyphosate residues in your food.  Hence, this publication.
Here’s what the FDA says about what it’s doing to protect us from glyphosate in food.
Here’s what a law firm says about which foods have glyphosate residues.
What can you do to avoid glyphosate?
  • Don’t use it in your garden or around your house.
  • Eat a wide variety of minimally processed whole foods; most are unlikely to have been sprayed directly.
  • Minimize intake of highly processed foods made with soy and corn ingredients.

And encourage the EPA to set firm standards and the FDA to continue to monitor foods for glyphosate residues.  Its last report was in 2017.

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Oct 1 2021

Weekend reading: the food system and water use

I am happy to see that USDA’s Economic Research Service is back on the job and recovering somewhat from its forced move to Kansas City.  I was especially interested to see this report: U.S. Food-Related Water Use Varies by Food Category, Supply Chain Stage, and Dietary Pattern.

It has three main conclusions:

  • The U.S. food system, which provides the majority of domestically purchased foods and beverages, requires about one-third of the Nation’s total freshwater use.

  • Crop production uses over half of the water for food, while later supply chain stages also require a substantial amount of water.

  • Freshwater usage varies by the food categories that make up U.S. diets. If the U.S. population were to adopt healthier dietary patterns, food-system water use could substantially increase or decrease, depending on the dietary patterns realized.

Something to consider.  But all this is why PepsiCo is making such a big point about trying to reduce its water use (it takes many gallons of water to make one gallon of a bottled drink).

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Sep 30 2021

Recent food items of interest

Here is my latest collection of accounts of unusual or unexpected food items.  Ice creams are high on the list.

You are wondering what Clitoria ternatea looks like?  Good enough to eat, I guess.

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