RFK plans to phase out synthetic food dyes by 2027. Here's what they do to your brain and body, according to science.

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• The US is calling on food companies to remove all synthetic food dyes by 2027.
• Announcing the move, Robert F. Kennedy Jr. said food companies are open to the change.
• Here's the evidence on synthetic dyes and health issues like cancer and ADHD.

US Health Secretary Robert F. Kennedy Jr. said Tuesday that he has ordered food companies to remove eight petroleum-based dyes from their products.

Speaking alongside the FDA and food activists...