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Updated: Jun 5, 2026
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Published on: March 21, 2021
Body composition modifications in patients under low protein diets
1Oakland University, William Beaumont School of Medicine, 3535 West Thirteen Mile Road, Rochester, MI 48073, USA. fdumler@beaumont.edu
Summary
Very low protein diets can maintain lean body mass in late-stage chronic kidney disease patients. However, close monitoring is crucial to prevent malnutrition due to illness or reduced intake.
Area of Science:
- Nephrology
- Nutritional Science
- Body Composition Analysis
Background:
- Chronic kidney disease (CKD) management often involves dietary modifications.
- Body composition changes are critical indicators of nutritional status in CKD patients.
Purpose of the Study:
- To review the impact of low protein diets on body composition in patients with chronic kidney disease (CKD).
- To evaluate body composition methods for clinical applicability in CKD.
Main Methods:
- Literature review of body composition techniques.
- Chronological appraisal of studies on low and very low protein diets in CKD stages III-V.
- Evaluation of nutritional status and body composition changes.
Main Results:
- Body composition methods were categorized by compartment, technique, and clinical utility.
- Very low protein diets demonstrated the ability to sustain lean and body cell mass in CKD stages III-V.
- Absence of CKD confounders was noted in one study on chronic undernutrition.
Conclusions:
- Very low protein diets can preserve lean body mass in advanced CKD.
- Malnutrition risk increases with intercurrent illness or reduced food intake.
- Regular clinical and nutritional monitoring by nephrologists and renal dietitians is essential.
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