nutrition
19 stories tagged "nutrition"
The NIH Weighed Every Meal to a Tenth of a Gram. Four AI Calorie Apps Undercounted by up to 345.
In a locked NIH metabolic kitchen where every ingredient was weighed to 0.1 grams, MyFitnessPal, Lose It!, CalAI, and Appediet each read a plate and undercounted it by a quarter to a third, missing the fat most of all.
Nutrition & FoodThe AHA Says Coffee Is Safe to Five Cups a Day. The Energy Shot's Problem Isn't the Caffeine.
Up to 400 mg a day, roughly three to five cups of regular black coffee, is generally safe for most adults and may be linked to lower cardiovascular risk. The concentrated shot in the gym-bag can is a different animal, and the reason isn't the caffeine.
Brain & AgingA Juice Company Built a Department Inside a Japanese University. Its Scientists Just Found Vitamin C Guards the Aging Brain.
Kagome, Japan's largest vegetable-juice maker, funded the work, employs two of its authors, and measured the vitamin itself. The gray-matter correlation it reported is real, and small enough to miss.
Nutrition & FoodThey Call It Aging. Sometimes It's a Vitamin Your Doctor Forgot to Check.
New Cornell research explains how B12 deficiency starves muscle of energy, and why the standard test your doctor orders can call the problem aging.
Nutrition & FoodSummer Sun Won't Save You: A Vitamin D Study Funded by the People Who Sell the Spray
A Newcastle screening study found vitamin D deficiency persists through summer in older and ethnic-minority adults in northern Britain. The funder sells the fix.
Nutrition & FoodYour Kombucha Is Only as Good as the Tea You Brewed It From
A new five-tea kombucha study finds the antioxidant punch depends almost entirely on the tea you start with, with green and oolong on top and the label never telling you.
Nutrition & FoodThe Protein Numbers on the Government Charts Were Never Meant to Help You Thrive
A new Frontiers in Nutrition perspective argues official protein and exercise guidelines were built to prevent deficiency, not to maximize healthspan, and that older adults in particular need far more.
Nutrition & FoodA Cheap Amino Acid Pulled Mice Back From a Cytokine Storm. The Twist Is Which Organ Did the Saving.
A Salk Institute mouse study found that dietary methionine cut deaths from severe inflammation by boosting the kidneys' ability to flush pro-inflammatory cytokines into urine, without blunting the immune response to infection.
Nutrition & FoodYour Five-a-Day Isn't Enough Flavanols, Says the Company That Sells Them by the Capsule
A new study says following dietary guidelines won't get you enough flavanols for heart protection. Two of its authors work for the company that sells flavanols in a capsule.
Brain & AgingThe Supervised Prehab Worked. The Home Version Hospitals Want to Sell You Did Not.
Two randomized trials in older surgical patients, one positive and one null, draw the same line under what "prehabilitation" actually requires, and why the version a hospital can hand you on paper did nothing.
Brain & AgingUltra-Processed Food Is Quietly Taxing Your Attention. The Mediterranean Salad Next to It Won't Pay the Bill.
A new Monash-led study finds ultra-processed foods track with worse attention and a higher dementia-risk score even after adjusting for Mediterranean diet quality. The biology of why is more interesting than the headlines admit.
Nutrition & FoodYour Food Has 139,000 Molecules. Standard Nutrition Science Tracks About 150.
A May 2025 NEJM review pegs the chemical complexity of the human diet at more than 139,000 molecules. USDA-style databases track around 150. That gap is not a footnote, and it is why so much nutrition guidance keeps aging badly.
Nutrition & FoodThe bitter finish in your protein shake isn't the protein. It's the minerals.
A new sensory study traces the bitter, peppery aftertaste in whey protein shakes to minerals that get concentrated during filtration, not the protein itself. The fix is a manufacturing tweak. The co-author is the supplier that sells the alpha-lactalbumin line.
Nutrition & FoodThe sugar-free mice got sicker, and the press release left out what they were eating instead
A 16-week mouse study presented at ENDO 2026 reported that sugar-free animals developed insulin resistance, gut dysbiosis and fatty liver at the same body weight as controls. The press release never says what replaced the sugar, and that single missing detail decides what the study actually means.
Autoimmune & InflammationA near-starvation diet shifted inflammation in gum-disease patients. The trial was tiny, and the diet came in a box.
A 28-patient feasibility trial put severe gum-disease patients on three cycles of a 750-calorie ProLon diet. Inflammation markers trended lower; clinical gum measures weren't reported. The biology question is real; the data is thin.
Nutrition & Food8,300 Brazilian elders, one saltshaker, and the 80 percent of sodium nobody mentions
A Frontiers in Public Health survey of 8,336 Brazilians over 60 found older men reach for the saltshaker most. Buried in the same paper: the shaker only accounts for 6 to 20 percent of total sodium. The other 70-plus percent already arrived from the factory.
Nutrition & FoodAmerican Doctors Get About 1.2 Hours of Nutrition Training a Year. RFK Jr. Just Found the Lever.
Kennedy got eight organizations across U.S. medical training and 73 medical schools to commit to nutrition in licensing, accreditation, and a 40-hour pledge. The board exam matters; the rest is partly hedging.
Nutrition & FoodThe thin trial behind England's next supermarket-layout mandate
A non-randomized trial of 36 English discount stores produced a moment-of-implementation bump in produce sales that lost statistical significance by three months, and a household-purchasing signal that never landed. The authors' immediate call for a national layout mandate is the louder finding.
Nutrition & FoodThe supplement aisle has spent twenty years getting older Americans wrong
A May 2026 review by two geriatric researchers, syndicated this week by ScienceDaily, restates what twenty years of trial data have already shown: the supplement aisle is built around vague promises older Americans do not need, while protein, the gap that actually moves aging outcomes, sits in the m