Is Blue 1 safe during pregnancy?
Blue 1 is FDA-allowed but being phased out of US foods. No pregnancy-specific limit; dye-free versions are an easy swap.
What the sources say
FDA still authorizes it in food, but in April 2025 HHS/FDA announced a plan to phase out petroleum-based synthetic dyes, and FDA's October 2026 tracking page says it is working with industry to eliminate Red 40, Yellow 5, Yellow 6, Blue 1, Blue 2 and Green 3 from the food supply by the end of 2027; many manufacturers have pledged to remove them. No pregnancy- or breastfeeding-specific limit has been issued, and evidence specific to pregnancy is limited. Choosing dye-free versions is an easy swap if you prefer.
Also listed as
fd&c blue no. 1, fd&c blue 1, blue no. 1, brilliant blue, brilliant blue fcf, e133, blue 1 lake, fd&c blue no. 1 aluminum lake
Sources
- FDA: Tracking Food Industry Pledges to Remove Petroleum-Based Food Dyes
- FDA: HHS, FDA to Phase Out Petroleum-Based Synthetic Dyes in Nation's Food Supply
Last reviewed . This is general information, not medical advice. Ask your doctor or midwife about your own situation.