8 Best protein sources

8 Best protein sources

8 Best protein sources

There are 4 important metrics to determine the quality of protein. Here is a list of top 8 protein sources with their quality ranking.

Protein sourceProtein efficiency ratioBiological valueNet protein utilizationProtein Digestibility Corrected Amino Acid Score
Whey protein3.2
104921
Egg3.9
100941
Milk2.5
91821
Beef2.9
80730.92
Casein2.5
77761
Soy protein2.2
74611
Peanuts1.8
--0.52
Black beans---0.75

Protein efficiency ratio (PER)

Protein efficiency ratio is the ratio of body mass gain to the amount of protein consumed in grams. Protein efficiency ratio was one of method used to assess the quality of protein in food.

Biological value (BV)

Biological value is a measurement used to determine the percentage of protein absorbed by the body and how quickly it is absorbed.

Net protein utilization (NPU)

Net protein utilization is similar to biological value. It is the proportion of nitrogen intake that is retained.

Protein Digestibility Corrected Amino Acid Score

Protein Digestibility Corrected Amino Acid Score is a method of evaluating the quality of protein based on the amino acid requirements of humans and their ability to digest it.

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