A groundnut kernel, also known as a peanut, is a nutritious legume that is high in protein and fat. Groundnut kernels are a major source of vegetable protein and edible oil in tropical and semiarid tropical countries. Groundnut kernels are rich in protein, fat, antioxidants, copper, vitamin E, and niacin.The thin, papery skin of the peanut contains many antioxidants and phytochemicals. Groundnut kernels can be eaten raw, roasted, boiled, or salted. May be used to treat heart disease, diabetes, mental problems, and more. A by-product of oil extraction that is used as animal feed and A nutritious food for livestock.