Artificial Food Coloring (Synthetic Food Dyes)

What this is

Synthetic food dyes are a category, not a single chemical. FDA distinguishes certified colors, which are synthetically produced and batch-certified, from colors exempt from certification, and says approved colors must meet safety and use conditions. The category is now in active transition. FDA revoked FD&C Red No. 3 for food after animal carcinogenicity findings triggered the Delaney Clause, while noting that the rat thyroid-tumor mechanism is unlikely to apply to humans. For child behavior, regulators have not used the same framing: FDA says most children have no adverse effects but some may be sensitive, EFSA described limited evidence from mixture studies, and California OEHHA concluded synthetic dyes can cause hyperactivity and other neurobehavioral problems in some children and that older ADIs may not adequately protect behavioral health. Recent U.S. policy is moving away from petroleum-based certified colors, especially in schools and reformulated packaged foods.

Safety Review

The critical endpoints experts review in safety assessments. This is not a prediction of harm.

OEHHA concluded synthetic dyes can cause hyperactivity and other neurobehavioral problems in some children, while FDA and EFSA describe the evidence more cautiously. Red 3 separately triggered FDA revocation after high-dose male-rat thyroid tumors, even though FDA says human risk at current exposures is unlikely and Red 3 is likely not directly DNA-reactive.