

Food for Thought: What Does the Data Say About Food Dye Safety?
Jul 29, 2025
Lisa Lefferts, an environmental health consultant and former FDA committee member, alongside Marion Nestle, a renowned nutritionist from NYU, dive into the colorful world of food dyes and additives. They unravel the safety controversies surrounding synthetic food dyes like Red No. 30, discussing their potential effects on children's behavior. The duo also tackles the health implications of ultra-processed foods and legislative measures like those in West Virginia. Tune in for insights on how science, politics, and public perception shape what we eat!
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Synthetic Dyes Are Cosmetic Only
- Synthetic food dyes are cosmetic additives originally derived from coal tar.
- They add color to food but do not affect its flavor or nutritional value.
Food Dyes Affect Some Children
- Some children show neurobehavioral reactions to synthetic food dyes, but not all.
- Studies on animals show potential harmful effects, yet these dyes serve no health function, only cosmetic and marketing purposes.
Diverse Evidence Supports Dye Effects
- California's review combined clinical, animal, and mechanistic evidence linking synthetic dyes to neurobehavioral effects in some children.
- A genetic polymorphism may explain why only certain children are sensitive.