1. Canned tomatoes
While fresh tomatoes are actually considered to be very good for your health and help to prevent cancer, the canned ones are not. Actually, most canned foods can be a concern because of the material the can is made of. The lining of almost all canned foods are made with a chemical called bisphenol-A or BPA. Studies show that BPA affects the way genes work inside the brain. This is manufacturers are trying to either replace or mnimize the amounts of BPA found in canned foods. Tomatoes are considered to be exeptionally dangerous due to their high level of acidity, which seems to cause BPA to leech from the can into the tomatoes. Our advise to you is, avoid cans and cook fresh or buy glass bottles.