supplements
17 stories tagged "supplements"
The Sea Squirt That Reverses Aging Is a Mouse Study From 2022. The Capsules Are Already on Amazon.
The mice got 300 milligrams per kilogram by feeding tube, five days a week, for two months. The human trials used about a milligram a day, most were funded by the companies selling the capsules, and the largest could not beat placebo.
Metabolic & WeightA Blueberry Compound Pulled Fat Out of Muscle Cells by Saving the Protein That Burns It
Pterostilbene didn't switch on fat-burning in muscle cells. It stopped them from destroying the protein that runs it, and the stored fat came apart. The catch: this happened in a dish, and you can't eat your way to the dose.
Brain & AgingThe Amino Acid Sold for Focus Tracked Fewer Years for Men, Not Women
In more than 270,000 people, men with higher blood tyrosine died sooner, by nearly a year on the genetic estimate. Women showed no clear lifespan signal. The amino acid is sold in capsules for focus.
Nutrition & FoodBeef-Level B12 in Spirulina: The Study Measured the Tank, Not a Human
An Icelandic supplement maker's light-tuned spirulina tested at beef-level active B12. The reading was taken from the biomass in a reactor. No one has yet fed it to a person to see whether the body can absorb it.
Nutrition & FoodWhat Probiotics Actually Do for Autistic Kids Isn't What the Label Promises
A review pooling about 1,000 participants found the clearest probiotic effect in autistic children lands on the gut, not behavior. The supplement aisle sells the reverse.
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.
Nutrition & FoodCancer Drugs Starve Tumors of Arginine. A Rockefeller Lab Says the Immune System May Need It to See Them.
Some cancer therapies deliberately strip arginine from the body to starve tumors. Rockefeller researchers found that in mice the same depletion can hide tumors, flu, and SARS-CoV-2 from the immune system.
CancerIn 2021, Creatine Spread Cancer in Mice. This Week, a UCLA Lab Said It Fights It.
A UCLA study found creatine energized cancer-fighting immune cells in mice and lab dishes. It was never tested in a patient, and a separate line of research says the same supplement feeds metastasis.
Brain & AgingA Federally Backed Trial Got High-Dose Fish Oil Into the Brain Fluid. The Memory Scores Never Moved.
DHA in the spinal fluid climbed 17 percent. Cognitive scores rose 2.76 points on fish oil, 2.67 on placebo. Two years of high-dose pills bought a rounding error.
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 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.
Nutrition & FoodBrewed tea has the longevity receipts. The supplement aisle has a liver problem.
A 2025 review finds 1.5 to 2 cups of brewed tea daily correlate with about 10% lower all-cause and 14% lower cardiovascular mortality. The EGCG-extract supplements built on the same chemistry have been linked to over 100 liver-injury cases, while bubble tea can match a Coke for sugar.
Brain & AgingA 272,000-Person Study Linked Higher Tyrosine to Shorter Lifespans in Men. The Supplement Aisle Sells It for Focus.
A UK Biobank analysis of 272,475 people using Mendelian randomization links higher blood tyrosine to about 0.91 fewer years of life in men, with no signal in women. The amino acid is sold widely as a focus and stress supplement. The study measured blood levels, not pills.
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 & 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