Obesity affects dogs and other pets adversely in many ways. Overweight dogs tend to play and exercise less and don't live as long as healthy pets. In fact, the list of harmful effects of obesity on pets is a long one.
Overweight dogs have a lower resistance to infection and tend to be less able to fight infectious diseases. Obese pets also have an increased incidence of arthritis (degenerative joint disease), spinal disc problems, and torn knee ligaments than normal pets. Overweight pets also have more problems moving about than their thinner counterparts. Obesity leads to impaired endurance during exercise, increased fatigue, and high blood pressure. The increased workload on the heart contributes to an increase in heart disease in overweight pets, leading eventually to congestive heart failure.
Diagnosis is more difficult in obese dogs because it is more difficult to auscultate or palpate a fat pet, or to get proper samples. Fat pets are at a greater risk during anaesthesia and surgery since they have reduced lung function, decreased liver and kidney function, greater risk of wound infection, and require more anaesthetic than normal pets. The incidence of skin problems is 40 per cent higher in overweight dogs than dogs at optimum body weight. Because of the insulating properties of fat, overweight pets are less able to endure hot weather, and many become more irritable. Other problems associated with obesity include:
All these effects contribute to a reduced life span and affect the quality of a dog's life. Pets that are healthy and physically fit tend to live longer, are happier, and enjoy life more. Consult your veterinarian to find out how you can keep your pet physically fit and healthy.
For additional information on obesity, see Weight Problems