How to Calculate Protein Rating: A Guide to PDCAAS, DIAAS, and Other Methods
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2 min read
Since 1989, the Protein Digestibility Corrected Amino Acid Score (PDCAAS) has been the preferred method for assessing protein quality, and knowing how to calculate protein rating is vital for nutritional analysis. However, a more accurate method, the Digestible Indispensable Amino Acid Score (DIAAS), has been recommended by the Food and Agriculture Organization (FAO) to provide a superior evaluation by addressing some limitations of PDCAAS. This guide breaks down these complex calculations into understandable terms for consumers and professionals alike.