5. Microwave popcorn
Chemicals in the lining of microwavable popcorn bags make it a major no-no, Olga Naidenko, a senior scientist for the Environmental Working Group, said to Prevention. These chemicals are linked to infertility, and in animal testing the chemicals have caused liver, testicular, and pancreatic cancer. The microwaving process causes the chemicals in the bag to vaporize and work their way into your snack.
The chemicals don’t just go away, either. They actually stay in the body for years and accumulate there, according to Naidenko, which is causing researchers to worry that levels within the body could eventually approach cancerous levels.