African cuisine is a generalized term collectively referring to the cuisines of Africa. The continent of Africa is the second largest landmass on Earth, and is home to hundreds of different cultural and ethnic groups. This diversity is also reflected in the many local culinary traditions in terms of choice of ingredients, style of preparation and cooking techniques. Traditionally, the various cuisines of Africa use a combination of locally available fruits, cereal grains and vegetables, as well as milk and meat products. In some parts of the continent, the traditional diet features a preponderance of milk, curd and whey products. In much of Tropical Africa, however, cow's milk is rare and cannot be produced locally (owing to various diseases that affect livestock). Depending on the region, there are also sometimes quite significant differences in the eating and drinking habits and proclivities throughout the continent's many populations: Central Africa, East Africa, the Horn of Africa, North Africa, Southern Africa and West Africa each have their own distinctive dishes, preparation techniques, and consumption mores.