by Marion Nestle

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Jul 28 2025

Industry-funded study of the week: Eggs

A study funded by the Egg Nutrition Center concludes that eating two eggs a day reduces LDL-cholesterol, a risk factor for heart disease.

My NYU colleague, Mitchell Moss, sent me this news release:

Landmark study flips decades of cholesterol panic aimed at eggs:  In a groundbreaking clinical trial, researchers have unraveled the effects of cholesterol and saturated fat, finding that eggs may be far less harmful – and potentially more beneficial – than previously thought. It’s the latest research, using robust scientific work, to recast a nutritional villain in a new light.

My immediate reaction: Who paid for this?

I went right to the study: Impact of dietary cholesterol from eggs and saturated fat on LDL cholesterol levels: a randomized cross-over study, The American Journal of Clinical Nutrition  Volume 122, Issue 1, July 2025, Pages 83-91.

Conclusions: Saturated fat, not dietary cholesterol, elevates LDL cholesterol. Compared with consuming a high-saturated fat diet with only 1 egg/wk, consuming 2 eggs daily as part of a low-saturated fat diet lowers LDL concentrations, which may reduce CVD risk.

Funding.  This work was funded by the Egg Nutrition Center, a division of the American Egg Board. This funding source had no role in the design of this study, and no role in the analysis or interpretation of the data or writing of the manuscript.

Conflict of interest. JDB, AMC and AMH report financial support was provided by Egg Nutrition Center. All other authors report no conflicts of interest.

Comment: This seems like old news.  We’ve known for a long time that saturated fat raises blood cholesterol to a greater extent than does dietary cholesterol.  Eggs are the greatest source of cholesterol in U.S. diets.  But even during the fiercest days of pushing to lower dietary cholesterol, one egg a day was always OK.  Egg consumption has declined and the egg industry wants you to eat more of them.  Does eating two eggs a day really reduce heart disease risk?  It would be nice to have independentlyy funded corroborating research.  This, alas, is an industry-funded study conducted by investigators funded by the egg industry.  The claim that the funding source had no role should raise eyebrows.  Research shows that funding exerts influence, whether recognized by investigators or not.

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Forthcoming November 11, 2025: What To Eat Now

What to Eat Now: The Indispensable Guide to Good Food, How to Find It, and Why It Matters.

Jul 25 2025

Weekend reading: The collapse of the FDA—a National Tragedy

The New York Times Magazine has published an astonishing investigative report about the FDA, totally worth reading: Inside the Collapse of the F.D.A.  How the new health secretary, Robert F. Kennedy Jr., is dismantling the agency.

She begins with RFK Jr’s opening salvo on Twitter (X):

FDA’s war on public health is about to end,” Kennedy wrote. “This includes its aggressive suppression of psychedelics, peptides, stem cells, raw milk, hyperbaric therapies, chelating compounds, ivermectin, hydroxychloroquine, vitamins, clean foods, sunshine, exercise, nutraceuticals and anything else that advances human health and can’t be patented by Pharma. If you work for the FDA and are part of this corrupt system, I have two messages for you. 1. Preserve your records, and 2. Pack your bags.

Her major point:

It was easy to paint the F.D.A. as a supervillain (an aggressive suppressor of sunlight, vitamins and exercise, to borrow Kennedy’s language), in part because the truth was so much more complex.

What’s impressive about this piece is its dealing with the complexities.  Here’s the critical one.

On the one hand, the agency’s regulators have a truly enormous remit: Which drugs, medical devices, food, pet food, dietary supplements, tobacco products and cosmetics we can buy — one in every five dollars we spend, by official estimates — comes down to the decisions they make. On the other hand, the agency itself is profoundly under-resourced…In fact, its federal budget is roughly the size of the budget of the local school district in Montgomery County, Md., where it is based.

I could go on quoting but everyone should read this piece to realize what is at stake in the current destruction of the FDA—a lot.  We need the FDA, and we need it to be much, much stronger, not weaker.

I want to add one point not discussed in the article: unlike the other agencies in the U.S. Public Health Service, which get their funding from congressional health committees, the FDA gets its funding from congressional agriculture committees.  This dates back to 1906 when the forerunner of the FDA was created as part of the USDA.   When the FDA was transferred to the forerunner of Health and Human Services, its funding remained with agriculture committees, which could not care less about its functions.

The article is long.  If you don’t want to read the whole thing, here are the take-home lessons:  What to Know About the Collapse of the F.D.A. 

 

 

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Jul 24 2025

The dairy industry promises to take color dyes out of ice cream (by 2028). And an update on the color situation.

USDA Secretary Rollins held a press conference with the dairy industry to announce the removal of artificial color dyes.

This is a voluntary, proactive pledge to eliminate the use of Red 3, Red 40, Green 3, Blue 1, Blue 2, Yellow 5, and Yellow 6 from ice cream and other frozen dairy desserts by 2028.  “I applaud the International Dairy Foods Association for stepping up to eliminate certified artificial colors,” Secretary Kennedy said. “The American people have made it clear—they want real food, not chemicals. Together with Secretary of Agriculture Brooke Rollins and U.S. Food and Drug Administration Commissioner Dr. Marty Makary, we’re holding the food industry accountable and driving a nationwide effort to Make America Healthy Again.”

In 2029, when the dyes are out of ice cream, ice cream will still be ice cream.  Alas.

Here’s an update on what’s happening with artificial colors.  But before getting to it, here’s the result of my research trip to England: Froot Loops with no artificial colors.   Check out what they look like.

Iceland Food Warehouse, Oxford. Photo Jean Lavigne.

And now for the latest on the cancelling of artificial color additives.

I think it’s great that these dyes wildl be gone eventually, but removing them is not going to Make America Healthy Again.  Ultra-processed cereals will still be ultra-processed.  Candy will still be candy.

This may be a win, but it’s a distraction from the irrepable damage the Trump administration is doing to our health, education, and healthcare systems.

For analyses of the tension between MAGA and MAHA, see:

Jul 23 2025

RFK Jr wants us to eat more protein (and fats)

HHS Secretary RFK Jr says he thinks we need more dairy foods in our diets.

“I grew up in a world where milk was the healthiest thing that you could eat,. There’s a tremendous amount of emerging science that talks about the need for more protein in our diet and more fats in our diet. And there’s no industry that does that better than this industry.

More protein?  Most Americans already consume more than twice the amount required.  Protein is in all minimally processed foods.  If you eat enough calories, you are getting plenty of protein.

The focus on protein is baffling to nutritionists like me.  Surveys report that 70% of us are trying to eat more protein.

This has led to protein madness.

To give just one example (another nutritionally hilarious product):

Plants have less protein than meat, dairy, or eggs, but those amounts add up.  Their amino acid composition is not as close to ours as are animal foods, but eating a variety of plants takes care of the differences.

RFK Jr’s push of protein and fat translates to a push for eating more meat and dairy foods.  Recall Brooke Rollins’ statement about getting rid of leftist ideologies in the dietary guidelines?  I was guessing that meant eating more plants.

We have to wait and see what the guidelines say when they come out, and I’m braced for it.

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Jul 22 2025

President Trump says sucrose is better than HFCS (both are glucose plus fructose)

The President of the United States says Coke should switch from high fructose corn syrup (HFCS) to cane sugar.

My response: this is nutritionally hilarious.

  • HFCS is glucose and fructose separated in liquid form.
  • Cane sugar (sucrose) is glucose and fructose bonded, but quickly split (so is beet sugar, but the President is not mentioning it).
  • Both HFCS and cane sugar are sugar(s).  Both provide about 4 calories per gram.
  • There may be people who can taste the difference, but when Coke found that nobody could tell the difference, it switched from sucrose to HFCS.

I’ve written about this previously, most recently in 2014: HFCS politics, continued. Endlessly.

Yes, HFCS is derived from genetically modified corn, but that doesn’t change the basic biochemistry, taste, or health effect.

Note: A 12-ounce Coke has 39 grams of either one.  It doesn’t matter which sugar is used; it’s too much to be consumed at one time.

At the time Coke switched to HFCS, it was much cheaper.  It is still cheapter but less so (because half of corn production is used to produce ethanol).

It will cost Coke more to replace HFCS with cane sugar or even beet sugar (which is identical to cane sugar).  So Coke is not exactly committing to doing this.

As Reuters reports, the switch would raise prices for consumers and be tough on US farmers too.

On this issue, I have to agree for once with the Corn Refiners Association.

This is one of those issues it will be enormous fun to watch.  Stay tuned.

Jul 21 2025

Industry-funded study of the week: Saffron and Mood

A new study says eating saffron will improve your mood.  Guess who funded it.

The Study: Lopresti AL, Smith SJ, Marx W, Díez-Municio M, Morán-Valero MI. An Examination into the Effects of a Saffron Extract (Affron) on Mood and General Wellbeing in Adults Experiencing Low Mood: A Randomized, Double-Blind, Placebo-Controlled Trial. J Nutr. 2025 Jul;155(7):2300-2311. doi: 10.1016/j.tjnut.2025.05.024. Epub 2025 May 23. PMID: 40414301.

Background: Saffron, derived from the stigmas of the Crocus sativus flower, has been shown in previous trials to have antidepressant effects in clinically diagnosed adults. However, the recruitment of small sample sizes, short treatment periods, and variability in the quality of studies have negatively impacted the strength of conclusions.

Objectives: The purpose of this 2-arm, 12-wk, parallel-group, randomized, double-blind, placebo-controlled trial was to examine the effects of supplementation with a saffron extract (Affron) on mood and sleep in adults experiencing subclinical depressive symptoms.

Methods: Two hundred and two adults aged 18-70 with depressive symptoms were supplemented with 28 mg saffron daily or a placebo.

Results: Compared to the placebo, saffron was associated with greater improvements in the Depression, Anxiety, and Stress scale….However, in the other secondary outcomes, there was no evidence of between-group differences.

Conclusions: This study…provides evidence supporting the beneficial effects of 3 mo of saffron supplementation on depressive symptoms in adults. Large placebo responses were evident in this study, which require consideration in future trials.

Funding: We thank Pharmactive Biotech Products, SLU, for funding the project and supplying the investigational products used for this
study.

Conflict of interest: ALL is the Managing Director of Clinical Research Australia, a contract research organization that receives research funding rom nutraceutical companies… SJS is an employee of Clinical Research Australia. WM has received funding and/or attended events funded by Cobram Estate Pty. Ltd. and Bega Dairy and Drinks Pty. Ltd…MD-M and MIM-V are employees of the study sponsor, Pharmactive
Biotech Products SLU.

Comment:  Let’s hear it for placebo responses!  Saffron is an extremely expensive spice usually used in pinch amounts.  If it’s hard for you to imagine that it could do anything to affect depression, subclinical depression yet, there’s a good reason for that—although saffron makes food taste delicious and that alone is a mood-improver.  But this study was done with a supplement, not the expensive spice.  Overall, this is a study done under contract from the supplement’s manufacturer by employees of the manufacturer.  As such, it is explicitly marketing research.  The interpretation of this study is predictable if you know who funded it.  The title of the study alone should generate the question: Who funded this?

Jul 18 2025

Weekend reading: Nutrition Research

NIH, and agency of the Department of Health and Human Services under Robert F. Kennedy Jr, has issued its strategic plan for nutrition research for the next five years.

The Table of Contents states the goals and research objectives.

The goals:

  1. Advance Science
  2. Support the generation of evidence to address priority diet, nutrition, and health outcomes
  3. Build Capacity and Strengthen the Field of Nutrition Science
  4. Foster Stewardship, Collaboration, Transparency, and Accountability in Nutrition Science Research

I went right to #2.  Its impact objectives:

  1. Improve the Approaches and the Precision of Methods to Assess the Determinants of Malnutrition
  2. Support the Generation of Evidence to Enhance Nutrition Regulatory Science

Oops.  Nothing about chronic disease?  Where is the MAHA agenda in this?

On closer look, the report mentions chronic disease 8 times.  It recognizes the problem, stating that

food systems and the food environment…are critical factors affecting consumer choices; dietary patterns; and, ultimately, health. Using this framework, ONR [Office of Nutrition Research]…will address critical components of the nutritional ecology—such as the shaping and impact of consumer attitudes, beliefs, and behaviors regarding food systems—and consider key questions to identify knowledge gaps in nutrition science that have direct bearing on diet-related chronic diseases….topical areas may include:

• Food production
• Food distribution and marketing
• Food delivery
• Food Is Medicine interventions
• Brain–body interactions
• Cooking and nutrition education
• Personalized and precision nutrition interventions

Ah yes, precision nutrition (targeting diets to specific individual genetic factors).

Identifying factors that predict inter- and intra-individual variability will likely decrease the burden of diet-related
chronic diseases and conditions and will also offer ways to tailor interventions for individuals and populations. [Goal 1, research objective 2]

The plan is organized around a unifying vision of precision nutrition research and includes four strategic goals and five crosscutting research areas. These opportunities complement and enhance ongoing research efforts across NIH to improve health and to prevent or treat diseases and conditions affected by nutrition. [Box 1]

The strategic goals are organized around four questions:

  • What do we eat, and how does it affect us?
  • What and when should we eat?
  • How does what we eat promote health across our lifespan?
  • How can we improve the use of food as medicine?

These are good questions, but to me they seem like public health questions.  It’s hard for me to imagine how they could be answered through precision nutrition.

I look forward to finding out how NIH plans to do this.

 

Jul 17 2025

Food Fraud: A small but ongoing problem

I wanted to know more when I read this article summary:

Food fraud: Spotlight on the most heavily targeted food products: New research shows the same foods – from beverages to dairy – are impacted by food fraud year after year… Read more

And what are they?

What kind of fraud are they talking about?

Leaning on FoodChain ID data, the report shows that botanical and animal origin fraud were the most prevalent in 2024 and over the last 10 years, with dilution also a major issue. In 2024, the use of non-standard substances was classed in third. “Botanical and animal origin fraud were the most reported type of food fraud in 2024, followed by use of non-food substance and dilution…of these frauds, using non-food substances in food has the potential to do the most harm as seen in the Sudan dyes in chilli powder and melamine in infant formula incidents.”

Shades of the early days of food adulteration.  It’s still happening, apparently.