Potato chips and fries could be carcinogenic. Love to eat foods that are extra crispy? You may be unknowingly putting yourself at risk. The brown crust that forms on burnt chips and fries indicates the presence of acrylamide, a chemical contaminant. Based on animal studies, this substance is considered to be a likely human carcinogen, though more research is required to know for sure. The foods which are most affected include those made from plants and grain products that are cooked at high heat. Dairy, meat, fish, and other foods that are steamed or boiled tend not to be affected. While the FDA isn’t suggesting that you quit eating the foods you love, it is advised that you stop over-frying and over-toasting. Feeling stressed?