Cited by 157Regulation of Appetite and ObesityNutrition, Health and Food BehaviorDietary Effects on Health

Protein Leverage: Theoretical Foundations and Ten Points of Clarification

Raubenheimer, David, Simpson, Stephen J.·2019·Obesity

Abstract

Much attention has been focused on fats and carbohydrates as the nutritional causes of energy overconsumption and obesity. In 2003, a model of intake regulation was proposed in which the third macronutrient, protein, is not only involved but is a primary driver of calorie intake via its interactions with carbohydrates and fats. This model, called protein leverage, posits that the strong regulation of protein intake causes the overconsumption of fats and carbohydrates (hence total energy) on diets with a low proportion of energy from protein and their underconsumption on diets with a high proportion of protein. Protein leverage has since been demonstrated in a range of animal studies and in several studies of human macronutrient regulation, and its potential role in contributing to the obesity epidemic is increasingly attracting discussion. Over recent years, however, several misconceptions about protein leverage have arisen. Our aim in this paper is to briefly outline some key aspects of the underlying theory and clarify 10 points of misunderstanding that have the potential to divert attention from the substantive issues.

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Crossref · 10.1002/oby.22531

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  • During amino acid restriction, mammals increase their consumption of diets low in protein to acquire sufficient protein to satisfy organismal requirements, despite increasing their overall caloric intake.

    “During amino acid restriction, mammals increase their consumption of diets low in protein to acquire sufficient protein to satisfy organismal requirements, despite increasing their overall caloric intake125–129.”

    From Metabolic messengers: FGF21 (2021) · cites this paper as [127]

  • A large and growing literature clearly demonstrates that animals selectively detect and adaptively respond to the restriction of dietary protein.

    “there is a large and growing literature that rather clearly demonstrates that animals selectively detect and adaptively respond to the restriction of dietary protein”
  • Protein is prioritized and regulated to a specific target, so small changes in the proportion of dietary protein can induce large changes in total food and energy intake (protein leveraging).

    “The observation that protein is prioritized and regulated to a specific target suggests that small changes in the proportion of dietary protein can induce large changes in total food and energy intake, a concept termed protein leveraging”

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Authors
Raubenheimer, D., & Simpson, S. J.
Affiliations
The University of Sydney (AU)
Corresponding author
Raubenheimer, David
Venue
Obesity
Publisher
Wiley
Published
2019-07-24
Volume
27
Issue
8
Pages
1225-1238
ISSN
  • 1930-7381 (ISSN-L)
  • 1930-739X
OpenAlex
W2963930807
Cited by
157
References
93
Citations by year
2026: 11 · 2025: 31 · 2024: 17 · 2023: 25 · 2022: 28 · 2021: 21 · 2020: 20 · 2019: 3 · 2014: 1
FWCI
2.16
Type
journal article
Language
en
Open access
closed
Locations
  • Obesity (publishedVersion)
  • PubMed (publishedVersion)
Funders
NHMRC Program (GNT1149976)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Regulation of Appetite and Obesity
  • Health Sciences › Nursing › Nutrition and Dietetics › Nutrition, Health and Food Behavior
  • Health Sciences › Medicine › Physiology › Dietary Effects on Health
Keywords
energy intake regulation, protein intake, energy overconsumption, dietary protein
MeSH terms
Nutrients, Animals, Energy Intake, Diet, Dietary Carbohydrates, Dietary Fats, Dietary Proteins, Humans, Obesity

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