Health and medicine

Vitamin D supplements

Change documented

2016 recommendations explicitly revise the nutritional reference framework.

Fact-check

1991 vitamin D assumptions and 2016 new advice documented; original 1991 report primarily cited retrospectively.

The evidence

Links go to the original records: Hansard, legislation, official guidance and news reports. A before-and-after pair is not always proof of a direct contradiction, so read the originals for exact wording.

Before: the earlier position

SACN review documents 1991 baseline (opens in new tab)
Government scientific committee — 1991 document not separately linked

After: what changed

PHE vitamin D announcement, 21 July 2016 (opens in new tab)
Government release

What the source documents claim

These are summaries from the original documents behind this archive. They have not been checked word for word. Where they differ from the fact-check above, the fact-check is the more reliable account.

Universal Winter Vitamin D Supplementation (Pre-2016)

Document A, case 13

Original advice: Prior to 2016, Department of Health policy stated that the general UK population obtained sufficient vitamin D from summer sunlight and a balanced diet without needing supplements.
How it was framed: Successive COMA dietary reference reports (1991, 1998) concluded that routine vitamin D supplementation was unnecessary outside specific vulnerable groups such as pregnant women and the housebound elderly.
Later change: In July 2016, Public Health England reversed official advice following a major SACN evidence review, recommending that everyone in the UK consider taking a daily 10-microgram vitamin D supplement during autumn and winter.