Cited by 161Diet and metabolism studiesDietary Effects on HealthDiet, Metabolism, and Disease

A long-term high-protein diet markedly reduces adipose tissue without major side effects in Wistar male rats

Lacroix, Magali, Gaudichon, Claire, Martin, Antoine, Morens, Céline, Mathé, Véronique, Tomé, Daniel, Huneau, Jean-François·2004·American Journal of Physiology-Regulatory, Integrative and Comparative Physiology

Abstract

Although there is a considerable interest of high-protein, low-carbohydrate diets to manage weight control, their safety is still the subject of considerable debate. They are suspected to be detrimental to the renal and hepatic functions, calcium balance, and insulin sensitivity. However, the long-term effects of a high-protein diet on a broad range of parameters have not been investigated. We studied the effects of a high-protein diet in rats over a period of 6 mo. Forty-eight Wistar male rats received either a normal-protein (NP: 14% protein) or high-protein (HP: 50% protein) diet. Detailed body composition, plasma hormones and nutrients, liver and kidney histopathology, hepatic markers of oxidative stress and detoxification, and the calcium balance were investigated. No major alterations of the liver and kidneys were found in HP rats, whereas NP rats exhibited massive hepatic steatosis. The calcium balance was unchanged, and detoxification markers (GSH and GST) were enhanced moderately in the HP group. In contrast, HP rats showed a sharp reduction in white adipose tissue and lower basal concentrations of triglycerides, glucose, leptin, and insulin. Our study suggests that the long-term consumption of an HP diet in male rats has no deleterious effects and could prevent metabolic syndrome.

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Crossref · 10.1152/ajpregu.00100.2004

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Authors
Lacroix, M., Gaudichon, C., Martin, A., Morens, C., Mathé, V., Tomé, D., & Huneau, J.-F.
Affiliations
  • Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement (FR)
  • Physiologie de la Nutrition et du Comportement Alimentaire (FR)
Venue
American Journal of Physiology-Regulatory, Integrative and Comparative Physiology
Published
2004-10
Volume
287
Issue
4
Pages
R934-R942
ISSN
  • 0363-6119 (ISSN-L)
  • 1522-1490
OpenAlex
W1995086609
Cited by
161
References
81
Citations by year
2026: 4 · 2025: 3 · 2024: 3 · 2023: 8 · 2022: 4 · 2021: 5 · 2020: 6 · 2019: 3 · 2018: 9 · 2017: 9 · 2016: 8 · 2015: 12 · 2014: 4 · 2013: 6 · 2012: 12
FWCI
4.32
Type
journal article
Language
en
Open access
closed
Locations
  • American Journal of Physiology-Regulatory, Integrative and Comparative Physiology (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Diet and metabolism studies
  • Health Sciences › Medicine › Physiology › Dietary Effects on Health
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diet, Metabolism, and Disease
Keywords
high-protein diet, low-carbohydrate diet, white adipose tissue, body composition, hepatic steatosis, liver histopathology, kidney histopathology, oxidative stress, detoxification enzymes, glutathione, glutathione S-transferase, calcium balance, insulin, leptin, triglycerides, metabolic syndrome, weight management, long-term dietary effects
MeSH terms
Adipose Tissue, Animals, Body Composition, Body Weight, Calcium, Diet, Dietary Proteins, Glutamate-Cysteine Ligase, Glutathione, Glutathione Transferase, Hydrocortisone, Insulin, Kidney, Liver, Male, RNA, Messenger, Biomarkers, Rats, Wistar, Thiobarbituric Acid Reactive Substances, DNA Primers, Oxidative Stress, Reverse Transcriptase Polymerase Chain Reaction, Leptin, Rats

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