vitamin-d
6 stories tagged "vitamin-d"
The Vitamin D Trials That Found No Brain Benefit Never Tested This Dose
Fifty-four older adults with failing sleep and early memory loss, and the ones taking 5,000 IU of vitamin D a day scored 13 percent higher on a standard cognitive test. The major null trials never tested that dose.
Metabolic & WeightThe 123 Percent Death-Risk Number in the Vitamin D Headlines Was Never Tested as a Pill
An observational study of 5,520 older Britons tied belly fat plus low vitamin D to a 123 percent higher death risk. Hand people the actual pill in a randomized trial and mortality drops about 5 percent, with nothing at all for the heart.
Metabolic & WeightThe Prescription Vitamin D Added to Protect Failing Kidneys Made Them Decline Four Times Faster
Chasing a parathyroid-hormone target, doctors added active vitamin D to a kidney drug. The hormone dropped 35 percent, and the kidneys declined four times faster.
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 & FoodCalcium and Vitamin D Got Demoted in the BMJ. The Trial Data Are More Stubborn Than the Headline.
A BMJ meta-analysis of 153,902 older adults reports calcium and vitamin D supplements offer little meaningful benefit against fractures and falls, though the combined arm showed a statistically significant 16% reduction in hip fracture risk.
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