Changes in body composition during weight loss in obese client-owned cats: loss of lean tissue mass correlates with overall percentage of weight lost |
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Authors: | German Alexander J Holden Shelley Bissot Thomas Morris Penelope J Biourge Vincent |
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Institution: | Small Animal Teaching Hospital, Department of Veterinary Clinical Sciences, University of Liverpool, Chester High Road, Neston, Wirral, UK. ajgerman@liv.ac.uk |
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Abstract: | Obesity is one of the most common medical diseases in cats, but there remains little information on success of weight loss regimes in obese client-owned cats. No information currently exists on body composition changes during weight loss in clinical cases. Twelve obese client-owned cats undertook a weight loss programme incorporating a high-protein low fat diet. Body composition was quantified by dual-energy X-ray absorptiometry, before and after weight loss. Mean (+/-standard deviation) weight loss was 27+/-6.8% of starting weight, and mean rate of weight loss was 0.8+/-0.32% per week. Mean energy allocation during weight loss was 32+/-7.0 kcal/kg target weight. Mean composition of tissue lost was 86:13:1 (fat:lean:bone mineral). The proportion of lean tissue loss was positively associated with overall percentage of weight loss (simple linear regression, r(2)=44.2%, P=0.026). Conventional weight loss programmes produce safe weight loss, but lean tissue loss is an inevitable consequence in cats that lose significant proportions of their starting body weight. |
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