E-Numbers and Pregnancy — What's Safe and What to Watch

The reassuring headline: authorised food additives are assessed for safety across the whole population, including pregnancy. But a few groups are worth knowing about.

Sulphites (E220–E228) and benzoates (E210–E213) are allergens. Nitrites/nitrates in cured meats are a separate concern. Aspartame is safe except for women with PKU.

One additive worth naming directly: MSG (E621) is often assumed to be a pregnancy risk, but this traces back to a debunked 1968 myth rather than any actual pregnancy-specific evidence — EFSA's safety assessment applies to pregnant women the same as everyone else, and neither the NHS nor the FSA lists it as an ingredient to avoid.

For the practical watchlist, see E-numbers to avoid in pregnancy. For broader pregnancy food safety, see 247FoodCheck.

Not medical advice — speak to your midwife or GP.

Additives worth knowing about in pregnancy

Data: Open Food Facts (ODbL) · EFSA. General information only — not medical or dietary advice.