Vitamin supplements for children - which ones and when

Last reviewed: July 2026 | Sources: NHS

The NHS recommendations on vitamins for children are surprisingly specific, yet most parents haven't heard them. The UK's limited sunlight makes vitamin D deficiency a genuine risk.

Vitamin D from birth

All breastfed babies should be given a daily supplement containing 8.5 to 10 micrograms of vitamin D from birth. Formula-fed babies drinking 500ml or more don't need it (formula is fortified), but once they drop below 500ml they do.

Vitamins A, C, and D from six months

The NHS recommends continuing vitamins A, C, and D for all children aged one to four years, given every day. This applies to all children in this age group, not just those with restricted diets.

Why vitamin D specifically

From October to March, UK sunlight isn't strong enough for adequate vitamin D production. Without enough, children can develop rickets. Children with darker skin tones are at higher risk.

What about other supplements?

Omega-3: evidence for supplementing in children with a varied diet is not strong. Iron: not recommended unless prescribed after a blood test. Vegetarian or vegan children may need B12, iron, calcium, and iodine supplementation - ask your GP for a dietitian referral.

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Sources

NHS - Vitamins for children