Peanuts.

Peanuts contain beneficial protein, but many people are allergic to them and find them hard to digest.
They also contain aflatoxin, a carcinogenic, which may explain why peanut farmers have been found to have disproportionately high rates of cancer.
Peanuts are high in fungus and, often, pesticides.They do not contain any omega-3, which can contribute to distorting your omega-6:omega-3 ratio.
The peanut is actually a legume, not a nut (which is why they are often roasted).
Peanuts contain about the same amount of protein as soy and are low in starchy carbohydrates.
Did you know? George Washington Carver was largely responsible for popularizing the peanut as a food in America.