Proteins
Proteins constitute about 15% of the body weight.
Proteins
are required for growth and repair. Proteins
contain Carbon, Hydrogen, Oxygen, Nitrogen
and sometimes Sulphur. Amino acids are basic
units that combine to form a protein molecule.
There are about 20 different amino acids.
Our body
can turn the amino acids back into protein.
Proteins can also be used as a source of
energy.
Major source of protein include meat, fish, poultry, eggs, pulses, cereals, vegetables etc.
1 gram of protein = 4 Kcal |