Nutritional management of obesity in cats |
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Obesity and excess bodyweight has become a major problem in cats in many regions of the world, just as it is amongst human beings. Studies suggest that up to 20-40% of cats may be overweight, with up to 5-10% being classified as obese1.
RISK FACTORS FOR OBESITY

Several important risk factors have been identified for cats including:
- Being neutered
- Being confined indoors
- Low activity levels
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- Gender (more common in males)
- Age (more common in middle-age)
- Breed (more common in mixed-breed)
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The human-pet relationship between owners and their cats may also contribute to obesity. Cats allowed free access to foods, and cats whose owners feel an especially close bond may be more likely to become obese, presumably as a result of the complex relationship between feeding and the human-animal bond2.
DISEASES ASSOCIATED WITH EXCESS BODY WEIGHT AND OBESITY

Numerous diseases have been linked with excess body weight in cats2.
MANAGEMENT OF OBESITY – NON-DIETARY FACTORS

Non-dietary factors also need to be addressed to help manage obesity and to ensure long-term compliance and success. Factors to consider include3:
- Encouraging activity and interactions with the cat (play and exercise).
- Introducing environmental enrichment for the cat.
- Follow-up to ensure long-term compliance.
THE ROLE OF NUTRITION IN SUCCESSFUL WEIGHT LOSS

The goal is to encourage gradual weight loss, aiming for a reduction of approximately 1% bodyweight per week. This weight loss rate is more physiological, more likely to result in long-term success and reduces or avoids complications such as hepatic lipidosis associated with rapid weight loss. Appropriate dietary management should include consideration of:
- Maintenance of lean body weight and loss of excess fat.
- Using a diet with increased nutrient: calorie ratio to ensure proper nutrition in the face of reduced calorie intake.
- Appropriate overall caloric restriction.
- Enhanced satiety if possible to discourage excess consumption.
- Excellent palatability to encourage owner compliance and maintain the important part of the human-animal bond associated with feeding.
CLINICAL ADVANTAGES WITH THE USE OF FELINE OM

Feline OM is characterised by:
- Higher protein levels and high protein: calorie ratio that have been proven to minimise loss of lean weight and encourage loss of fat during weight loss in cats5.
- High protein levels that also reduce the oxidative stress during weight loss in cats6.
- High protein, low fat and high fibre levels that reduce caloric density leading to effective weight loss and may increase satiety.
- A diet suitable for both weight loss and weight maintenance in cats prone to obesity.
- The reassurance of a diet that reduces the risk of urinary calculus formation.
1. German A. The growing problem of obesity in dogs and cats. J Nutr 2004: 136;S1940-S1946.
2. Kienzle E, Bergler R. Human-animal relationship of owners of normal and overweight cats. J Nutr 2006: 136;1947S-1950S.
3. Laflamme DP. Understanding and managing obesity in dogs and cats. Vet Clin Small Anim 2006: 26;1283-1295.
4. Laflamme DP. Development and validation of a body condition score system for cats: a clinical tool. Feline Pract 1997: 25;13–8.
5. Laflamme DP, Hannah SS. Increased dietary protein promotes fat loss and reduces loss of lean body mass during weight loss in cats. Intern J Appl Res Vet Med 2005: 3;62-68.
6. Tanner AE et al. Nutritional amelioration of oxidative stress induced by obesity and acute weight loss. Comp Cont Ed Pract Vet 2006: 28;72.