The first kind of carbohydrate-containing foods are commonly eaten cereals, such as rice, millet, oats, buckwheat, corn and so on. The second kind of food is potato food, such as sweet potato, sweet potato, potato, taro and so on. The third kind of food is often eaten fruits, such as apples, peaches, bananas, pears and so on. These sweet fruits also contain a lot of carbohydrates, which provide the body with very rich sugar. The fourth food dairy products: lactose in dairy products is also one of disaccharides, so it is also one of the sources of carbohydrates.