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Supplements

20   Articles
20

Evidence-based articles on vitamins, minerals, supplements, dosing, effectiveness, interactions, and safety.

4 min read

GOS is one of the best-studied prebiotics; XOS is promising but less established. Here is how to read labels, judge claims, and avoid assuming that a GOS + XOS blend is automatically better.

6 min read

Vitamin K1 and K2 have important biological functions, but many supplement claims go beyond the evidence. Correct serving-size data, AI values, vitamin K metabolism and warfarin safety.

10 min read

Does NMN slow human ageing? Updated October 2026: what human trials reveal about NAD⁺, metabolic outcomes, short-term safety, study funding and the cost of supplements.