Uk-food-supplements-regulations

UK food supplements are regulated under the Food Supplements (England) Regulations 2003 — safety is required; efficacy is not. EFSA health claims require pre-authorisation under Regulation 1924/2006 (retained UK law). This article provides a practical framework for evaluating whether a supplement is evidence-based: checking EFSA claim status, active ingredient dose, and category of evidence.

A diet supplement is any product taken to supplement dietary nutrient intake, regulated under the Food Supplements (England) Regulations 2003. UK law requires safety but not demonstrated efficacy. EFSA health claim authorisation is the strongest signal of evidence quality. This article covers what diet supplements are, how they differ from medicines, and how to assess evidence quality before purchasing.

Effective dietary supplementation in the UK follows a priority hierarchy: correct documented deficiencies first (vitamin D for all UK adults — SACN 2016; B12 for vegans; iron only with confirmed anaemia), then address life-stage needs (folic acid in pregnancy), then support known dietary gaps. Most UK adults do not need broad-spectrum supplementation beyond vitamin D. This guide covers when, what, and how to supplement based on UK-specific evidence.