- Hyperactivity – Red 40, Yellow 5 and Yellow 6
- Compulsive aggression/violent behavior – Yellow 5
- Eczema, hives – Yellow 5 and Yellow 6
- Asthma – Yellow 5
- Irritability – Yellow 5
- Sleep disturbances/insomnia – Yellow 5
- DNA damage in gastrointestinal organs, colon and urinary bladder in mice – Yellow 5, Red 40
- Reduces serum and saliva zinc levels (increased susceptibility to infection and impaired cell-mediated immunity) – Yellow 5
If you want more information, read the entire report at http://cspinet.org/new/pdf/food-dyes-rainbow-of-risks.pdf .
The FDA is charged with protecting consumers from dangerous foods, and as such they have approved only 9 synthetic food dyes for human consumption (Yellow 5 & 6 and Red 40 amongst them). Realizing that there is no nutritional value to food dyes, the FDA is pretty rigid in their testing. Kudos to them. There’s just a few problems with their tests – 1) most of the studies were commissioned and paid for by the dye manufacturers and 2) most of the studies lasted no longer than 2 years. Plus, none of the studies tested the interaction of multiple dyes.
And if you want to do more, send your congressman a note and tell him you expect him to pressure the FDA to ban the use of synthetic dyes in foods in the US.