Nutrition News

December 21, 2025

Top Headlines

Sugar-free Sweeteners May Still Be Harming Your Liver

Dec. 20, 2025 Sorbitol, a popular sugar-free sweetener, may not be as harmless as its label suggests. Researchers found it can be turned into fructose in the liver, triggering effects similar to regular sugar. Gut bacteria can neutralize some of it—but too much ...

This Tiny Protein Helps Control How Hungry You Feel

Dec. 17, 2025 Researchers have identified a previously overlooked protein that helps regulate appetite and energy use in the body. This “helper” protein supports a key system that decides whether the body burns energy or stores it, and when it does not ...

He Ate a Hamburger and Died Hours Later. Doctors Found a Shocking Cause

Dec. 17, 2025 A rare tick-borne allergy linked to red meat has now been confirmed as deadly for the first time. A healthy New Jersey man collapsed and died hours after eating beef, with later testing revealing a severe allergic reaction tied to alpha-gal, a sugar ...

Colon Cancer Is Surging in Younger Adults and Doctors Are Alarmed

Dec. 16, 2025 Cases of colorectal cancer in younger adults are climbing worldwide, driven by lifestyle changes and inherited genetic risks. Diet, obesity, and lack of early screening are playing a major role in this shift. New genetic tests offer hope for earlier ...

New Study Shows Some Plant-based Diets May Raise Heart Disease Risk

Dec. 15, 2025 Researchers tracking over 63,000 adults found that high-quality, minimally processed plant foods significantly reduce cardiovascular risk. But when those plant foods are ultra-processed, the advantage disappears—and can even backfire. Some ...

Harvard Gut Discovery Could Change How We Treat Obesity and Diabetes

Dec. 14, 2025 Scientists found that certain molecules made by gut bacteria travel to the liver and help control how the body uses energy. These molecules change depending on diet, genetics, and shifts in the microbiome. Some even improved insulin response in ...

Tea May Strengthen Bones in Older Women While Heavy Coffee Weakens Them

Dec. 13, 2025 A decade-long study of older women found that tea drinkers had slightly stronger bones, while moderate coffee drinking caused no harm. Heavy coffee intake—over five cups a day—was linked to lower bone density, especially in women who consumed ...

Daily Multivitamins Quietly Lower Blood Pressure in Some Older Adults

Dec. 12, 2025 Emerging evidence hints that daily multivitamins might quietly help certain older adults keep their blood pressure in check—especially those with poorer diets and normal readings at the start. While the overall results showed no broad benefit, ...

Scientists Find Dark Chocolate Ingredient That Slows Aging

Dec. 12, 2025 Scientists have uncovered a surprising link between dark chocolate and slower aging. A natural cocoa compound called theobromine was found in higher levels among people who appeared biologically younger than their real ...

Blood Tests Reveal Obesity Rapidly Accelerates Alzheimer’s Progression

Dec. 10, 2025 Obesity accelerates the rise of Alzheimer’s-related blood biomarkers far more rapidly than previously recognized. Long-term imaging and plasma data show that obese individuals experience much faster increases in proteins linked to ...

Why Ultra-processed Foods Make Teens Eat More When They Aren’t Hungry

Dec. 10, 2025 A Virginia Tech study shows that ultra-processed foods may influence adolescents differently from slightly older young adults. Participants aged 18 to 21 ate more at a buffet and snacked even when not hungry after two weeks on an ultra-processed ...

Most of the World Isn’t Getting Enough Omega-3

Dec. 9, 2025 Most people worldwide aren’t getting enough omega-3, leaving a major gap between scientific recommendations and daily diets. Researchers emphasize the critical role of EPA and DHA across all life stages and point out that food alone often can’t ...

Latest Headlines

updated 10:54am EST

Is a Vegan Diet Safe for Kids? A Huge Study Has Answers

Dec. 21, 2025 A major new meta-analysis finds that vegetarian and vegan diets can support healthy growth in children when properly planned. Kids on plant-based diets often had better heart health markers, ...

Even Moderate Drinking Carries a Bigger Cancer Risk Than You Think

Dec. 11, 2025 Researchers found that both how often and how much someone drinks significantly shape their cancer risk, even at moderate levels. Vulnerability varies across groups, with genetics, socioeconomic ...

Her Food Cravings Vanished on Mounjaro Then Roared Back

Dec. 8, 2025 Deep-brain recordings showed that Mounjaro and Zepbound briefly shut down the craving circuits linked to food noise in a patient with severe obesity. Her obsessive thoughts about food disappeared as ...

Gut Molecule Shows Remarkable Anti-Diabetes Power

Dec. 8, 2025 Researchers revealed that the microbial metabolite TMA can directly block the immune protein IRAK4, reducing inflammation and improving insulin sensitivity. The molecule counteracts damage caused by ...

This Simple Ingredient Makes Kale Way Healthier

Dec. 8, 2025 Scientists found that kale’s prized nutrients are hard for the body to absorb unless they’re eaten with oil. Cooking doesn’t improve absorption, but adding oil-based dressings—or even more ...

Garlic Mouthwash Shows Shockingly Strong Germ-Fighting Power

Dec. 8, 2025 Garlic extract is emerging as a surprisingly powerful contender to chlorhexidine, the long-standing “gold standard” in antimicrobial mouthwashes. A systematic review of clinical studies shows ...

New Fat-Burning Diabetes Pill Protects Muscle and Appetite

Dec. 7, 2025 Researchers have developed a new oral drug that boosts metabolic activity in muscle rather than altering appetite like GLP-1 drugs. Early trials suggest it improves blood sugar control and fat ...

Natural Hormone Unlocks a Hidden Fat Burning Switch

Dec. 6, 2025 FGF19 triggers the brain to burn more energy and activate fat-burning cells, offering a potential new path for obesity treatments. The hormone enhances thermogenesis and reduces inflammation, but ...

Scientists Reveal a Powerful Heart Boost Hidden in Everyday Foods

Dec. 5, 2025 Regular consumption of polyphenol-rich foods like tea, coffee, berries, nuts, and whole grains may significantly support long-term heart health. A decade-long study of more than 3,100 adults found ...

Scientists Find Hidden Brain Nutrient Drop That May Fuel Anxiety

Dec. 4, 2025 Researchers found that people with anxiety disorders consistently show lower choline levels in key brain regions that regulate thinking and emotions. This biochemical difference may help explain why ...

Simple Nutrient Mix Delivers Surprising Autism Breakthrough in Mice

Dec. 4, 2025 A low-dose mix of zinc, serine, and branched-chain amino acids boosted neural function and social behavior in autism mouse models. The combination restored more typical synaptic protein patterns and ...

Scientists Find a Hidden Obesity Trigger in Soybean Oil

Nov. 30, 2025 Researchers at UC Riverside have uncovered why soybean oil, one of America's most widely consumed ingredients, drives significant weight gain—at least in mice. The findings point not to the ...

Daily Coffee May Slow Biological Aging in Mental Illness

Dec. 4, 2025 Researchers studying people with major psychiatric disorders found that drinking up to four cups of coffee a day is associated with longer telomeres. This suggests a potential slowing of biological ...

A Common Nutrient Deficiency May Be Silently Harming Young Brains

Nov. 27, 2025 Scientists studying young adults with obesity discovered early indicators of brain stress that resemble patterns seen in cognitive impairment. The group showed higher inflammation, signs of liver ...

The Body Trait That Helps Keep Your Brain Young

Nov. 25, 2025 Scientists discovered that more muscle and less hidden abdominal fat are linked to a younger biological brain age. Deep visceral fat appeared to accelerate brain aging, while muscle mass offered a ...

Vegan Diet Beats Mediterranean for Weight Loss Even With Potatoes and Grains

Nov. 24, 2025 Participants lost more weight on a low-fat vegan diet than on the Mediterranean diet, largely due to eliminating animal foods and reducing oils and nuts. Increased intake of plant foods, even ...

Global Surge in Ultra-Processed Foods Sparks Urgent Health Warning

Nov. 24, 2025 Ultra-processed foods are rapidly becoming a global dietary staple, and new research links them to worsening health outcomes around the world. Scientists say only bold, coordinated policy action can ...

Everyday Microplastics Could Be Fueling Heart Disease

Nov. 18, 2025 Microplastics—tiny particles now found in food, water, air, and even human tissues—may directly accelerate artery-clogging disease, and new research shows the danger may be far greater for males. ...

How to Keep Ozempic/Wegovy Weight Loss Without the Nausea

Nov. 18, 2025 Scientists are uncovering how GLP-1 drugs like Ozempic and Wegovy act on brain regions that control hunger, nausea, pleasure-based eating, and thirst. These discoveries may help create treatments ...

Twenty-Year Study Shows Cleaner Water Slashes Cancer and Heart Disease Deaths

Nov. 27, 2025 A 20-year project in Bangladesh reveals that lowering arsenic levels in drinking water can slash death rates from major chronic diseases. Participants who switched to safer wells had the same risk ...

Blocking One Enzyme May Break the Link Between Alcohol and Liver Disease

Nov. 18, 2025 Scientists discovered that alcohol activates a sugar-producing pathway in the body, creating fructose that may reinforce addictive drinking. The enzyme responsible, KHK, appears to drive both alcohol ...

Ultra-Processed Foods Quietly Push Young Adults Toward Prediabetes

Nov. 17, 2025 Ultra-processed foods, already known for their links to health problems in adults, are now shown to harm young adults too, disrupting blood sugar regulation long before illness appears. A four-year ...

Surprising Heart Study Finds Daily Coffee May Cut AFib Risk by 39%

Nov. 10, 2025 New research finds that daily coffee drinking may cut AFib risk by nearly 40%, defying decades of medical caution. Scientists discovered that caffeine’s effects on activity, blood pressure, and ...

Vitamin D3 Breakthrough Halves Risk of Second Heart Attack

Nov. 10, 2025 Intermountain Health researchers discovered that customizing vitamin D3 doses for heart attack survivors slashed their risk of another heart attack by 50%. The strategy involved frequent monitoring ...

A Tiny Worm Just Revealed a Big Secret About Living Longer

Nov. 13, 2025 Scientists studying aging found that sensory inputs like touch and smell can cancel out the lifespan-boosting effects of dietary restriction by suppressing the key longevity gene fmo-2. When ...

Scientists Reveal What Really Drives the “freshman 15”

Dec. 3, 2025 College life creates a perfect storm for overeating, as students consume more calories when surrounded by friends, eating in dining halls, or following unstructured schedules. A four-week study using ...

Think Melatonin Is Safe? New Research Reveals a Hidden Heart Risk

Nov. 4, 2025 Long-term melatonin use for sleep problems may come with unexpected heart dangers. Researchers found that chronic users were almost twice as likely to die and 3.5 times more likely to be hospitalized ...

Scientists Discover the Nutrient That Supercharges Cellular Energy

Nov. 3, 2025 Scientists uncovered how the amino acid leucine enhances mitochondrial efficiency by preserving crucial proteins that drive energy production. By downregulating the protein SEL1L, leucine prevents ...

Most Americans Don’t Know Alcohol Can Cause Cancer

Nov. 5, 2025 Most U.S. adults don’t realize alcohol raises cancer risk, and drinkers themselves are the least aware. Scientists say targeting these misbeliefs could significantly reduce alcohol-related cancer ...

Cocoa and Tea May Protect Your Heart from the Hidden Damage of Sitting

Nov. 25, 2025 Scientists found that high-flavanol foods can prevent the decline in blood vessel function that occurs after prolonged sitting. Even physically fit men weren’t protected unless they had consumed ...