This isn’t the only dangerous chemical in microwave popcorn: the popcorn bag linings contain a chemical called perfluorooctanoic acid (PFOA), a chemical also found in Teflon, which has been linked to infertility in women. According to the American Cancer Society, PFOA has also been linked to cancers of the kidney, bladder, liver, pancreas and testicles.
Canned Tomatoes
Canned tomatoes -- as well as other canned foods -- are packaged in a container that contains the chemical bisphenol-A, or BPA, which is a common structural component in plastic packaging. While the FDA has published findings that show that this chemical is still safe within certain levels for packaging that comes in contact with food, it has acknowledged that small amounts of the chemical may migrate into food. A 2013 study conducted by the National Academy of Sciences showed that BPA affects the way that genes function in the brains of rats.
While most canned goods are packaged in containers that use BPA, tomatoes get particular attention because they have high levels of acidity, which may cause BPA to leach into tomatoes from the can lining. Some experts advise cooking fresh tomatoes or buying sauces packaged in glass instead.
Farmed Salmon
While wild salmon is one of the healthiest foods you can eat, farmed salmon is an entirely different animal, so to speak. Farmed salmon are fed diets that mainly comprise chicken litter and contain countless chemicals, antibiotics, pesticides and other carcinogens. The pesticides are used to deal with the sea lice that attack farmed salmon at a rate 30 times higher than wild salmon because of their close living quarters. They are also fed diets that contain chemicals to add the reddish hue to their meat that occurs naturally in wild salmon, but which does not with farmed salmon, because of their substandard diet.