PDCAAS is a method of evaluating the quality of protein based on the amino acid requirements of humans and their ability to digest it. Here is a list of best protein sources based on Protein digestibility-corrected amino acid score (PDCAAS).
1. Whey Protein:
PDCAAS score: 1
Protein content: Approximately 80 grams of protein per 100 grams.
2. Egg:
PDCAAS score: 1
Protein content: 6 grams of protein (1 large egg).
3. Milk:
PDCAAS score: 1
Protein content: Approximately 8 grams of protein per cup (approx 250 gms).
4. Soy protein:
PDCAAS score: 1
Protein content: 81 grams of protein per 100 grams.
5. Beef:
PDCAAS score: 0.92
Protein content: 26 grams of protein per 100 grams.
6. Black Beans:
PDCAAS score: 0.75
Protein content: 8 grams of protein per 100 grams.
Protein efficiency ratio, biological value, net protein utilization & PDCAAS are the 4 important metrics to determine the quality of protein. Best protein sources can be identified using any of the metrics. The above list is based on PDCAAS.