Summary
This narrative review by Schaafsma, published as part of a supplement issue of the Journal of Nutrition, provides an overview of the PDCAAS method — the then-standard FAO/WHO-endorsed approach to evaluating protein quality in human nutrition. The paper likely examines the strengths and limitations of PDCAAS, including the practice of truncating scores at unity and the use of faecal rather than ileal digestibility values, in the context of ongoing scientific debate about whether PDCAAS should be superseded by the Digestible Indispensable Amino Acid Score (DIAAS). It forms part of a broader 2012 symposium discussion on protein quality evaluation methods.
UK applicability
The findings are applicable to UK nutrition policy and food labelling contexts, particularly given that UK dietary guidelines and public health bodies reference international protein quality frameworks; the methodological critique of PDCAAS is relevant to UK food standards and product formulation decisions.
Key measures
PDCAAS values; amino acid scores; true faecal digestibility coefficients; protein quality rankings across food sources
Outcomes reported
The paper reviews the Protein Digestibility-Corrected Amino Acid Score (PDCAAS) method for evaluating protein quality, examining its scientific basis, limitations, and practical application in comparing protein sources. It likely discusses truncation of PDCAAS scores at 1.0 and methodological concerns raised ahead of FAO/WHO expert consultations on protein quality assessment.
Topic tags
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