The nutritional values of proteins from a physiological perspective are evaluated on the basis of following parameters :-



A table showing essential amino acid profile for
Whey Proteins is given hereunder :-

Essential Amino Acid Whey Proteins Iso-Ieucine 55 Leucine 111 Lysine 88 Methionine 25 Phenylanine 34 Threonine 72 Tryptophan 30 Valine 52

Biological Value measures the amount of protein
nitrogen that is retained by the body from a given
amount of protein nitrogen that has been consumed.

The comparison chart for BV for different source of
proteins is listed below :

Protein Source B.V. Whey Proteins 104 Whole Egg 100 Egg Whitw (Albumin) 88 Casein 77 Rice 74 Soya 59 Wheat 54

The Protein Efficiency Ratio (PER) is used as a
measure of growth expressed in terms of weight
gain of an adult by consuming 1 gramme of food protein.

Given below is the table showing PER value for various
proteins :

Proteins Source PER Value Wheat 1.00 Rice 1.25 Soya 2.12 Casein 2.50 Lactalbumin 2.86 Whey Proteins 3.00