Cheese is nutritious food made mostly from the milk of cows, sheep, goats, buffalo and other mammals. There are different types of cheese produced depending upon the milk used and cheese making process. The milk used may be full fat, semi-skimmed or fully skimmed, this affecting the fat content of the cheese. It may be pasteurised or unpasteurised. Milk from different animals and different breeds is important in determining the final flavour. Cheese is also classified according to its firmness. The various classifications are soft, semi soft, semi hard and hard. Cheese is rich in protein, calcium, zinc and vitamin B12. It is also high in sodium and saturated fat. Cheese complement many foods, it can be added as toppings on a pizza or can be filled inside a sandwich.