Cassava is a member of the Euphorbiaceae family. It is a woody shrub native to South America but cultivated in other tropical areas of the world. The root of cassava provide the body with carbohydrates. Cassava also contains large amounts of starch, calcium, phosphorus, and vitamin C. It also contains the amino acid methionine to a lesser extent. Cassava root can be used in cooking. It is also used to treat a variety of ailments in various countries.