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Obesity in cats

Hello Catlovers!

Today we are going to talk about obesity in cats.


We define obesity as a pathological excess of body fat(1). 

We say that a cat is overweight when its weight is >15% over the optimal. And obese, those when is >30% (2).

Obesity happens when the energy intake exceeds the energy used.

Although it sounds easy, other factors influence on this. 

Risk factors:
  • Preexisting health problems: ie: degenerative joint disease = reduced activity. 
  • Neutering: increase of food intake and decreasing physical activity (3, 4).
  • Household Factors: ie: multicat houses and stress/resources competition. Other animal's food.
  • Dietary factors
  • Human physical and emotional status: The owners of obese cats tend to over-humanize them and use their cats as a substitute for human companionship (5). They also play less with their cats and instead use food as a reward. 

Prognosis:
It is not as simple as it seems; weight management can be challenging. Many cats do not successfully reach their target weight, and about half of those that do subsequently rebound (6).

Successful weight management is not only about reducing body fat, but also:
- Improvement of quality of life
- Decrease the severity of associated diseases
- To reduce the risk of developing another disease

Treatment:
  • Lifestyle management 
  • Appropriate diet


Lifestyle management for obesity

The owner’s cooperation will be crucial to ensure a successful weight reduction plan, because many changes will need to be done.

- Increasing physical activity because it promotes fat loss,  assists in lean tissue preservation,
- Special diet and controlled daily food allowance (upcoming)

Tips to increase physical activity:
  • Playing: Wand toys, balls, tunnels, interactive toys (the cat can play alone). Not recommended laser pointers! 
  • Feeding: Puzzle feeders for dry food, lick mats for wet food, scattering food on the floor, or throwing one biscuit at the time, to encourage the cat moving to eat. Hiding the food around the house, it improves the mental health and keeps the cat busy and active. 
  • Environment:
 - catios/ protected gardens
 - Elevated locations around the house: cat trees and perches. 

Dietary requirements:

I’d like to emphasise that it is a long, slow process, and cats should never be starved or put on a “crash diet”, it could be fatal for them. The ideal weight loss is about 1% of the bodyweight per week (7).
Weight loss should be very gradual and well-controlled. Ideally, the weight should be checked weekly, but if you can’t do this at home, it can be done every 2-3 weeks, at the vets. Many clinics offer weight loss programs for free.
I would like you to have a look to this post how much I should feed my cat? to remind you the amounts that your cat should be fed, when on a diet. 
It is not only about feeding them less food; special diets for weight loss are recommended, because they are restricted in energy content while providing supplemental protein and micronutrients to avoid malnutrition. If you are feeding alternative diets, it is advisable to consult with a veterinary nutritionist, as some cats might need L-carnitine supplementation, for example.
Increasing protein is interesting, to maintain the lean tissue and to improve satiety. For instance, increasing, both protein and fibre content relative to energy doesn’t provide a good satiety in cats (8). Instead, the best effect on satiety occurs with modest fibre and protein supplementation (8).
It is important to remember that increasing the moisture and the water intake will lead to caloric dilution and thus, will increase satiety. There’s some evidence that increasing the water can also help to increase the activity levels of the cat (9, 10).

To finish this post I want to show you all the consequences that obesity has! It is not only about looking good, it is about health!

-Metabolic/ endocrine diseases such as diabetes

- Cardiovascular problems

- Joint and mobility problems

- Urinary problems such as crystals

- Skin problems as they can’t reach themselves to groom

- Depression!!! A hunter, active animal not able to move or play, it is so sad.


If you have an obese cat, look for help! Losing weight is a long process but it is totally worth it!

Have a nice week and stay safe 🙏

Remember to subscribe to our MeowsLetter :)


References:

1. Kopelman PG. Obesity as a medical problem. Nature. 2000;404:635–643. 

2. German AJ. The growing problem of obesity in dogs and cats. J Nutr. 2006;136(suppl 7):1940S–1946S. 

3. Flynn MF, Hardie EM, Armstrong PJ. Effect of ovariohysterectomy on maintenance energy requirements in cats. J Am Vet Med Assoc. 1996;9:1572–1581. 

4. Harper EJ, Stack DM, Watson TD, Moxham G. Effect of feeding regimens on body weight, composition and condition score in cats following ovariohysterectomy. J Small Anim Pract. 2001;42:433–438. 

5. Kienzle E, Bergler R. Human-animal relationship of owners of normal and overweight cats. J Nutr. 2006;136(suppl 7):1947S–1950S. 

6. Deagle G, Holden SL, Biourge V, et al. Investigating long- term outcomes of weight management in obese cats. In Proceedings of the WALTHAM International Nutritional Sciences Symposium 2013: from pet food to pet care: bridging the gap, p. 49. 

7. Kirk CA, Debraekeleer J, Armstrong PJ. Normal cats. In: Small animal clinical nutrition. 4th edition. Marceline, Missouri: Mark Morris Institute, 2000:291-320.

8. Bissot T, Servet E, Vidal S, et al. Novel dietary strategies can improve the outcome of weight loss programmes in obese client-owned cats. J Feline Med Surg. 2010;12:104–112. 

9. Cameron KM, Morris PJ, Hackett RM, Speakman JR. The effects of increasing water content to reduce the energy den- sity of the diet on body mass changes following caloric restriction in domestic cats. J Anim Physiol Anim Nutr. 2011;95:399–408. 

10. Alexander JE, Colyer A, Morris PJ. The effect of reducing die- tary energy density via the addition of water to dry diet, on body weight, energy intake and physical activity in adult neu- tered cats. In Proceedings of the WALTHAM International Nutritional Sciences Symposium 2013: from pet food to pet care: bridging the gap, p. 50.


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