vitamin-d
13 stories tagged "vitamin-d"
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.
Metabolic & WeightGestational Diabetes Followed the PFAS EPA Never Limited, and Vitamin D Drew the Line
In 746 Henan pregnancies, the PFAS that tracked with gestational diabetes were lesser-studied compounds outside every US federal water limit, and the link clustered in women low on vitamin D.
CancerA Generic Vitamin D Drug Quadrupled Chemo Responses in a Small Pancreatic Cancer Trial, and Its Phase 2 Never Ran
Forty-two percent of patients on paricalcitol plus chemo saw their tumors shrink, versus 9 percent on placebo, in a 36-person safety trial. The randomized phase 2 meant to follow it never ran.
Metabolic & WeightOne 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.
Metabolic & WeightForever Chemicals, Pregnancy, and the Vitamin That Might Decide Who Gets Hurt
Early-pregnancy PFAS tracked with gestational diabetes in a 420-woman China cohort, but almost entirely in mothers already low on vitamin D. A 5,229-pregnancy US analysis found no added risk at all. The gap between them may come down to one cheap blood test.
Nutrition & FoodCalcium and Vitamin D Cut Hip Fractures 16 Percent. The Authors Called That 'Little to No Meaningful Benefit.'
The combined calcium and vitamin D arm cut hip fractures with a confidence interval that cleared significance. Then a bar the researchers set for themselves, one that would take more than halving hip fractures to meet, turned the result into a headline telling people to stop.
CancerThe Women Low on Vitamin D Were Three Times as Likely to Wake From a Mastectomy in Serious Pain
Ninety-two breast cancer patients went into a mastectomy deficient in vitamin D; they were three times as likely to be in serious pain afterward and drew far more from the tramadol pump than the women whose levels were fine.
Brain & AgingThe 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