Vitamin D: what the large trials actually found
Deficiency is worth correcting. Taking it just in case, as a healthy adult, did almost nothing in the biggest randomised trials.
Everything we have published
Every article ends with its sources, so you can open them and read for yourself.
Omega-3: who fish oil actually helps
The same molecule behaves differently at a low dose in healthy people and at a high dose in patients with raised triglycerides.
Magnesium and sleep: evidence versus hope
Magnesium matters for hundreds of enzymes. The sleep trials, though, are small, short and inconsistent — and that is worth saying plainly.
Probiotics: you choose a strain, not a jar
A probiotic effect belongs to a specific strain and a specific job. "A probiotic for gut health" is a marketing phrase, not a claim.
Vitamin C and colds: what the Cochrane review really says
Regular use barely changes your chance of catching a cold, but shortens it slightly. Starting once your nose is running does close to nothing.
Creatine: one of the best-studied supplements there is
Hundreds of trials, a clear mechanism, a low price. A rare case where the evidence is stronger than the advertising.