Fats
Our body needs fat in small amounts. Fats are made up of carbon, oxygen and hydrogen. They store vitamins and produce fatty acids. We need these acids to produce cell membranes.
Fats can come from animals or plants. They are in meat and dairy products, like butter and cheese. Other types of fats are in vegetable oils, nuts or seeds.
Too many saturated fats produce a high level of cholesterol, a waxy material made by the body. It starts building up in the walls ofblood vessels and may block blood as it flows through our body.