1) Soft drinks
Soft drinks are full of sugar, and they often contain artificial caramel as coloring. This artificial coloring is called Caramel IV and as a by-product of an ammonia-based process, it contains the carcinogenic chemical 4-MEJ. Alternative: water is always the best choice, but if you really feel the need for the sweetness of a soft drink, choose a brand that does not use Caramel IV.