Peer-reviewed veterinary case report
High-protein diet helps overweight cats keep muscle during weight loss
By des Courtis, X et al.·Published in Journal of animal physiology and animal nutrition·2015·Department of Molecular Biosciences, United States·View original on PubMed →
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Original publication title: Influence of dietary protein level on body composition and energy expenditure in calorically restricted overweight cats.
- Species:
- cat
Plain-English summary
A group of overweight cats was put on a calorie-restricted diet for 8 weeks to see how different protein levels affected their weight loss and body composition. Some cats received a high-protein diet while others had a moderate-protein diet. Both groups lost weight at the same rate, but the cats on the high-protein diet maintained more of their muscle mass. This suggests that feeding overweight cats a high-protein diet while they lose weight can help them keep their lean body mass and may also help maintain their energy levels.
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Abstract
High-protein (HP) diets help prevent loss of lean mass in calorie-restricted (CR) cats. However, it is not entirely known whether these diets also induce changes of energy expenditure during periods of CR. To investigate this issue, sixteen overweight cats were fed either a high-protein [(HP), 54.2% of metabolizable energy (ME)] or a moderate-protein [(MP), 31.5% of ME] diet at 70% of their maintenance energy intakes for 8 weeks, and energy expenditure, energy intake, body weight and composition, and serum metabolites and hormones were measured. While both groups of cats lost weight at a similar rate, only cats eating the HP diet maintained lean mass during weight loss. Indirect respiration calorimetry measurements revealed that both total and resting energy expenditure (kcal/d) significantly decreased during weight loss for both treatment groups. However, only cats eating the MP diet exhibited significant decreases of total and resting energy expenditures after energy expenditure was normalized for body weight or lean mass. Results from this study suggest that in addition to sparing the loss of lean mass, feeding HP diets to overweight cats in restricted amounts may be beneficial for preventing or minimizing decreases of mass-adjusted energy expenditure during weight loss.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/25073483/