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Folic acid isn't just a pregnancy vitamin. Here's the UK reference intake, who needs more, and one real safety caution worth knowing.

Chromium carries an EFSA-authorised blood sugar claim — but the trial evidence behind it is more contested than the claim itself lets on.

Topical HA plumps skin within minutes; oral HA works slower and differently. Here's what the trial evidence actually shows for each — and why it's not really a versus.

Two nutrients genuinely differ by sex in UK guidance — iron and folic acid. Here's what actually changes, and what's mostly just marketing.

Biotin has one real EFSA claim behind it — and it's not "growth." Here's what the evidence actually supports, plus a safety note worth knowing before your next blood test.

Curcumin has real trial evidence for joint pain. The black pepper absorption claim printed next to it on the label is far shakier. Here's the difference.

Only one digestive enzyme claim is actually regulated. Here's what the other seven on the label are really doing — and who genuinely needs any of it.

Zinc deficiency is uncommon in the UK but not rare in specific groups. Here are the real signs, who's actually at risk, and what zinc is authorised to do.

Psyllium husk has real EU-approved claims for cholesterol and bowel function. Here's the evidence, the dose that matters, and how to take it properly.