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May 10, 2026Critical Reviews in Food Science and Nutrition3 citationsOpen Access

Examining widely held propositions on human dietary protein needs and benefits: a critical review of the science that shapes both the data and our understanding of an essential macronutrient

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MKM. M. KanterSASally AaronSASteven N. Austad

Key Points

  • This review critically evaluates the existing scientific propositions regarding human dietary protein needs and the gaps in evidence supporting these claims.
  • Analysis of existing literature on dietary protein needs.
  • Assessment of the quality and relevance of the research base.
  • Identification of gaps in sample size and study duration.
  • Experts called for more research due to insufficient evidence supporting many dietary protein propositions.
  • Identified issues included low quality and small sample sizes in relevant studies.
  • Surrogate markers were often inadequately used, affecting the validity of findings.

Abstract

" In most instances, the experts believed additional research was warranted. For many propositions the research base was insufficient in terms of quality (rigor), quantity (sample size, study duration), or pertinence (e.g., use of surrogate markers).

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Cite This Study

Kanter et al. (2026) studied this question.

synapsesocial.com/papers/6a0020aec8f74e3340f9b8f0https://doi.org/10.1080/10408398.2026.2658728
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