Is cereals a good source of protein?

Answer 1

Cereals are grasses that are cultivated for their edible grains. In their unrefined form (whole grain), they are a rich source of protein, along with vitamins, minerals, carbohydrates, and fats. However, when they are refined into products like white flour, white rice, and most breakfast cereals, their nutritious bran and germ are removed, and what remains is mostly carbohydrate and lacks most of the other nutrients.

Answer 2

Incomplete proteins are generally found in plant derived diet. The limiting (missing) amino acid in cereals is lysine. Hence this make cereal proteins incomplete because essential amino acids such as lysine can not be synthesized in the body hence need to taken from the diet. It can be mided together with other food such as beans, peas, lentils to derive essential amino acids that meets the complete protein requirement of the body.