SOURCES OF PROTEINS::
The best sources of protein are animal sources like meat fish poultry eggs milk and milk products They are otherwise known as first class proteins because they are rich in essential amino acids
Cereal grains and legumes are important sources of plant proteins They are also known as second class proteins Pulses are commonly knows as poormans meat because they are comparatively cheap and fair in the nutritive constant The biological value of vegetable proteins can be improved when cereals and pulses are taken together
Mutual Supplementation of Amino Acids::
Amino acid content of the diet can be improved by supplementing one protein source with the other in indian diet this method has a significant role to play for example cereals and pulses lysine the limiting amino acid in cereals is supplemented by pulses which is rich in it Methionine the limiting amino acid in pulse is supplemented by cereals Soyabeans is also rich in lysine but deficient in methionine A small quantity of animal food can also do the same as vegetable proteins
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