In many parts of Africa, peanuts are usually known as groundnuts because the nut pods grow underground
. Peanuts play an important nutritional role in many parts of Africa, since they have good fats and contain 7 grams of protein which helps combat child malnutrition. They grow well in semi-arid regions and are a staple food as well as a revenue source for farmers. Although native to South America, the Portuguese introduced peanuts into their African enclaves, where they quickly spread throughout tropical Africa.