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

28 stories tagged "metabolic-health"

Metabolic & Weight

Most of Finland's 'Low T' Men Reported Good Health 15 Years On, Even at Levels One Online Clinic Set Out to Treat

Finnish men in the bottom quarter for testosterone at 31 reported health and quality of life at 46 that didn't differ significantly from the top quarter, though their median level fell under the only treatment cutoff a 2022 secret-shopper study found among online platforms.

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.

Investigations

Women Who Cleaned Lost Lung Function at a Pace Compared to Smoking 10 to 20 Cigarettes a Day

Over 20 years, women who cleaned at home or for a living lost lung function faster than women who didn't. Tested scented products gave off carcinogens their labels never named, and single-chemical safety limits weren't built for the mixture under your sink.

Metabolic & Weight

When the Fat Comes Off, DDT's Half-Century-Old Residue Pours Back Into the Blood

Bariatric patients who shed 45 kilograms saw their blood levels of DDE, the breakdown product of DDT, more than double. The fat we're told to lose has been holding industrial chemicals since the 1970s.

Metabolic & Weight

Twenty Minutes of Lifting, Twice a Week: The Heart Workout We Filed Under Vanity

In a 12,591-person cohort, people who lifted weights once or twice a week had up to 72 percent fewer cardiovascular events, and the benefit held even for those who never met the aerobic exercise guidelines.

Brain & Aging

A Gut Molecule Tied to Diabetes and Clogged Arteries Now Tracks With Alzheimer's Decline

In 1,196 cognitively healthy adults, the people with the most of one gut-made molecule in their blood declined fastest, and a genetic variant carried by about 43 percent was linked to higher levels.

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.

Metabolic & Weight

Mulberry Blunts Your Blood Sugar by Handing the Carbs to Your Gut Bacteria

Mulberry's post-meal glucose effect has been tested in people across 12 trials. The gut-microbiome makeover sold on the strength of it still exists only in mice and petri dishes.

Metabolic & Weight

A Creatine-Industry Advisor Ran the Study Behind the 'Skip the Gym' Headlines

A new trial says creatine builds lean mass without exercise, and his own society's journal published it. The measurement it leaned on is the one creatine is known to inflate with water.

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.

Metabolic & Weight

The Headlines Blamed Stress. The Data Blamed Belly Fat, Cigarettes, and Poverty.

In 488,079 UK adults, chronic inflammation tracked with a heart quietly remodeling into a smaller, stiffer pump. The loudest drivers were belly fat, cigarettes, and poverty. The paper points at a druggable inflammation pathway; its senior author discloses fees and grants from Bayer and Google's Cali

Metabolic & Weight

Crash Diets Rewire Your Gut to Sabotage the Next One

In mice, transplanting the gut microbes of weight-cycled animals into healthy ones handed over the bingeing with them. Crash dieting reshapes the gut, and the diet industry keeps selling you the fix for damage its last plan made.

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.

Cancer

Younger Generations Are Testing Biologically Older, and Early Cancer Is Tracking the Gap

By a nine-marker blood panel, Americans born in the 1990s scored biologically older than those born in the late 1960s did at the same age, and Washington University researchers found that accelerated aging tracked a higher risk of early-onset cancer.

Metabolic & Weight

The Fast Every Type 1 Diabetic Is Warned Against Held Up in a Six-Month Trial

Thirty-two obese adults with Type 1 diabetes ate only between noon and 8 p.m. for six months. No rise in severe lows, severe highs, or ketoacidosis, and their HbA1c fell 0.46 points against the calorie-cutting group.

Metabolic & Weight

At the Dose the FDA Calls Safe, Two Sweeteners Reshaped the Guts of Mouse Grandpups That Only Drank Water

Chilean researchers fed mice sucralose and stevia at the doses the FDA calls safe. The metabolic marks showed up in grandpups that only drank water.

Metabolic & Weight

The Cheapest Measurement in the Exam Room Beat BMI and the Lancet's Four-Part Obesity Formula

BMI flagged 37 percent of the adults a body-fat scan called obese. On overall accuracy, a cloth tape around the waist caught far more and edged out the four-measurement framework built to fix BMI.

Cancer

High Blood Sugar Hands Cancer Cells a Cloak the Immune System Can't See Through

Grown in a fluid built to mimic the human body, cancer cells used excess glucose to thicken a sugar coating that hid them from immune cells, an effect that never showed up in the standard lab dishes used across cancer biology.

Nutrition & Food

Cut the Fiber and Your Gut Bacteria Start Eating Your Own Gut Lining

Princeton isotope tracing found that when fiber runs short, gut bacteria strip protein off the mucus wall and churn out the same toxins that pile up in failing kidneys. Feed them whole plants and the chemistry flips.

Nutrition & Food

Thousands of Genes, 20 Volunteers, No Control Group: The Viral Orange Juice Study

The juice came from a citrus-growers' group, the study had no comparison drink, and 'thousands of genes' rests on 20 people, arriving the same summer the FDA loosened what counts as orange juice.

Nutrition & Food

For Forty Years They Said Skim the Fat. This Trial Fed People Full-Fat Dairy and the Cholesterol Held.

In a 74-adult trial, the group assigned three servings of full-fat dairy a day for twelve weeks held steady on weight, body fat, cholesterol and insulin resistance, and their blood pressure improved, against advice the guidelines have pushed since 1980.

Brain & Aging

The Fat Molecule That Rides From Your Waistline to Your Brain, and Feeds Alzheimer's Once It Gets There

In obese mice, a membrane fat called phosphatidylethanolamine packed into tiny vesicles, rode to the brain, and sabotaged the immune cells that clear amyloid. An investigational drug reversed it, in mice.

Brain & Aging

Same Diet, Same 15 Pounds: Only the Women Who Ate in an 8-Hour Window Got Sharper

Two groups of older women cut the same calories and lost the same 15 pounds over six months. The ones who packed eating into an 8-hour window still scored better on problem-solving, from a 47-person pilot that hasn't been peer-reviewed.

Nutrition & Food

The Fruit Juice Sold to Parents as the Healthy Choice Tracks With Higher Blood Pressure 25 Years Later

One daily glass of orange juice tracked with 20 percent higher blood pressure risk. The whole fruit tracked with nothing.