Brilliant Blue FCF: Artificial Coloring. Inadequate test suggest a small cancer risk.
Fast Green FCF: In 1981 studies showed hints of bladder cancer in animals, but after the FDA reanalyzed the data, it concluded it was safe.
Erythrosine: The evidence that this red dye causes thyroid tumours in rats was "convincing" according to a 1983 report requested by the US FDA.
Information Source: Nutrition Action
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