Dietary sources of proteins
Proteins can be obtained from both animal and plant sources. The animal sources include milk, meat, fish, liver, egg etc. The plant sources of proteins are pulses, nuts and cereals. Proteins taken in our routine diet are broken down to amino acids (building block) during the process of digestion in stomach. These amino acids are absorbed by the body and used as building blocks to synthesize new proteins once again which depends on the specific physiological requirement of a living organism.