Potato skins contain toxic glycoalkaloids,
so be sure to peel off the skins before cooking.
While sprouted groundnuts can be eaten, they can't be eaten if the skin is brown or black speckled, and that's because they're contaminated with the black spot fungus. Black spot bacteria discharged toxins, containing cassava ketone and cassava ketone alcohol, so that the sweet potato hard and bitter, on the human liver is very toxic. Although this toxin is boiled and roasted, its biological activity will not be destroyed. After consumption, more than twenty-four hours onset, nausea, vomiting, diarrhea and other gastrointestinal symptoms. Serious, but also a high fever, headache, asthma, confusion, pumping, vomiting blood, coma, and even death. Even death