#6 Alcohol
The research linking alcohol to cancer risk is strong many researchers have stated. Clear patterns have emerged between alcohol consumption and the development of head and neck cancers, esophageal cancer, liver cancer, breast, and colon cancer.
#5 Frozen Dinners
Frozen meals are packed with awful preservatives that can cause carcinogenic effects. When heating these dishes up, it can activate some of the chemicals. Also, when heating, it removes any health benefit of the frozen food. Fresh meals are the healthiest and you should always try to eat fresh when possible.