23 Surprising Foods You Should Never Eat Raw

Mushrooms
Raw mushrooms contain agaritine which has a cancerous effect in the bladder of mice. While it appears that the risk to humans is much lower, at about 2 cases per 100,000 lives, to get the nutrients from mushrooms that could reduce the risk of cancer, it is best to first cook the mushrooms. Cooking mushrooms can also decrease the mercury contamination of a mushroom meal.