Thursday, October 29, 2026 Evidence-led medical research news
The First Cohort
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nutrition

51 stories tagged "nutrition"

Nutrition & Food

Of 28 Links Between Everyday Drinks and Mouth Bacteria, Alcohol Claimed 25

A federal study of 5,598 Americans tied alcohol, mostly beer and liquor, to 25 of 28 links between drinks and mouth bacteria. It landed months after the Dietary Guidelines dropped their daily drink limits.

Nutrition & Food

The Mediterranean Diet's Mitochondrial 'Boost' Comes From One Blood Draw in 49 Heart Patients

Older heart-rhythm patients who ate closest to the Mediterranean pattern carried more humanin and SHMOOSE, but nobody's diet was changed and both gaps landed at p = 0.046.

Nutrition & Food

Non-Dairy Creamer Overtook Sugar as the Biggest Source of Added Calories in American Coffee

Average coffee intake barely moved between 2003 and 2018, yet its calories climbed from 43 to 60 a day, and non-dairy creamer, not sugar, drove most of the rise.

Nutrition & Food

Cold Cuts and Breakfast Cereal Pulled Opposite Ways in a Giant Colon Cancer Study

In 461,682 Americans, total ultra-processed food showed no link to colorectal cancer. Inside the label, reconstituted meat products tracked with higher risk and packaged bread and cereal with lower, while a federal definition sits under White House review.

Cancer

The Vitamin C Trial That Missed Its Goal and Counted 11 Deaths Against 24

Copenhagen and USC researchers gave 1,000 mg of plain vitamin C a day to people with pre-leukemic blood disorders. The mutant clones grew regardless, but over three years of follow-up 11 patients assigned to the vitamin died, against 24 assigned to placebo.

Nutrition & Food

An Oil Mill's Soy Emulsifier Protected Salt-Fed Mice's Memory

Salt-fed mice got worse at remembering objects and lost interest in each other. A soy lipid blunted both, in a study a food-ingredient maker helped start and fund.

Nutrition & Food

Vitamin D2 Supplements Lower the Vitamin D3 Already in Your Blood

Pooling randomized trials, Surrey researchers found people taking vitamin D2 ended up with less circulating vitamin D3, the form sunlight makes, than people who took none, by as much as 18 nmol/L.

Brain & Aging

The MIND Diet's '2.5 Younger Brain-Years' Meet the Trial That Couldn't Find Them

Framingham brain scans linked closer MIND-diet adherence to grey matter aging about 2.5 years slower. A 604-person randomized trial that put older adults on the diet for three years found no edge over a control diet.

Nutrition & Food

In a 20-Patient UCSF Pilot, Cutting Ultra-Processed Food Dropped Depression Scores About 60 Percent

Twenty adults with major depression cut their ultra-processed food by more than 85 percent, and their scores on three depression scales fell about 60 percent in four weeks. The pilot is tiny and unblinded, and the result is still hard to wave off.

Metabolic & Weight

Eating After Dinner Tracked With More Fatty Liver and Cirrhosis in Nearly 200,000 Americans

Across nearly 200,000 nurses and health professionals, eating after dinner or bedtime tracked with 20 to 30 percent more fatty liver disease and cirrhosis. Nobody can patent a closed kitchen.

Nutrition & Food

Same Calories on Paper, 116 Fewer Absorbed: What Your Gut Microbes Do With a Whole-Food Diet

On calorie-matched menus, 17 adults absorbed about 116 fewer calories a day eating whole foods than eating processed ones, with no measurable rise in hunger, and the century-old Atwater arithmetic undercounted the processed plate.

Cancer

Cancer Wasting Was Hiding in Two Million Routine Weigh-Ins

At Memorial Sloan Kettering, 48.8% of 59,493 tumor-sequenced cancer patients had at least one cachectic weight-loss episode over about five years. No drug is approved for it, and a French hospital coded it in under 1% of its cancer patients.

Nutrition & Food

Forget You Ate Lunch and You'll Eat Another One: Your Memory Center Helps Run Your Appetite

Two amnesic patients ate a second full lunch minutes after the first. Rats with silenced meal-memory neurons came back to eat sooner. In healthy young adults, one week of waffles and fast food dulled both word recall and the normal drop in food craving after a full breakfast.

Nutrition & Food

Sugar on the Hospital Tray Tracked With Deeper Antibiotic Damage to the Gut

Among 173 transplant patients on antibiotics, each extra 100 grams of sugar went with 24 percent lower gut diversity, and the nutrition shakes hospitals often recommend appeared to do the most harm.

Nutrition & Food

Keto Raised Tumor Counts in One Stretch of Mouse Gut and Cut Them in the Next, While the Ketones Sat It Out

In cancer-prone mice, a ketogenic diet meant more small-intestine tumors and fewer colon tumors, and the ketones long credited for keto's anticancer promise turned out to be bystanders.

Nutrition & Food

87 Trials Found the Whole-Grain Sweet Spot: Sixteen Markers Nudged Healthier, None of Them by Much

Sixty to a hundred grams of whole grain a day nudged weight, cholesterol, blood pressure and inflammation the right way across 87 randomized trials. The median trial ran eight weeks, every effect was tiny, and not one counted an actual heart attack.

Metabolic & Weight

One in Six Kids on Weight-Loss Drugs Was Diagnosed With a Nutrient Deficiency, and Only 5 Percent Got Nutrition Counseling

The alarm about kids going short on vitamin D on Ozempic-style drugs came from a study funded by Abbott, which sells the very nutrition drinks marketed to fill those gaps.

Nutrition & Food

The Older Adults Whose 'Biological Age' Dropped Ate More Carbs and Kept the Meat

The omnivorous, low-fat, high-carbohydrate group showed the strongest drop. The keto-style omnivore group was the only one of four that didn't budge at all.

Nutrition & Food

The Fat Hiding in Black and Green Rice Is a Cousin of the Body's Own Blood-Sugar Molecules

Hokkaido chemists screened 56 rice varieties and found the pigmented ones carry a lipid cousin of the body's own insulin-sensitizing fats. This study did not test it in people.

Nutrition & Food

MRI Found Fat Marbled Inside the Thigh Muscles of Heavy Ultra-Processed Eaters, and Calories Didn't Explain It

MRI scans of 615 adults found more fat marbled inside the thigh muscle the more ultra-processed food people ate, and the link held after adjustment for calorie intake, exercise, and fat intake.

Nutrition & Food

The Whole-Grain Sweet Spot Is 4 to 6 Servings, and It Nudged Five Heart-Risk Numbers at Once

60 to 100 grams a day moved body weight, blood pressure, cholesterol, blood sugar and an inflammation marker together, the same cluster clinicians usually treat one number, and one prescription, at a time.

Nutrition & Food

Four in Five Men Have Never Heard Milk Is Tied to Prostate Cancer

A vegan advocacy group's survey says only 20% of men know the link. The growth-hormone mechanism is well-mapped, the relative risks are modest, and nobody in a white coat is walking men through either one.

Nutrition & Food

The Coffee-and-Bones Study Behind the Scary Headline Found No Significant Coffee Effect

The tea benefit was 0.003 grams per square centimeter, a number the authors themselves called too small to matter. The scary coffee result never cleared statistical significance.

Nutrition & Food

Beef-Level B12 in Spirulina: The Study Measured the Tank, Not a Human

An Icelandic supplement maker's light-tuned spirulina tested at beef-level active B12. The reading was taken from the biomass in a reactor. No one has yet fed it to a person to see whether the body can absorb it.