Vitamin D Deficiency in the UK: What the Evidence Actually Shows

Name: Dr Vahe Clinic
Address: 25 Ives Street, London, Chelsea, SW3 2ND, GB
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Serum 25-hydroxyvitamin D (25-OH-D) is the accepted marker of vitamin D status because it reflects both dietary intake and endogenous synthesis. In the UK's National Diet and Nutrition Survey (2019), 16% of adults were classified as deficient (below 25 nmol/L) — rising to 29% in South Asian adults.