How overweight is unhealthy? Dogs should not be overweight at all, especially as puppies or adolescents. Can obesity be caused by illness? No, but illnesses which cause bloating or fluid retention make a dog seem fat. What are the consequences of a dog being overweight? He can no longer cope with the activities which are essential to him enjoying life. Severe strain can be put on hip joints causing lameness. Heart action may be compromised, breathing may be restricted and in bad cases the legs find it difficult to support the body. Should an old dog weigh more than a young one? Not very much more, although spaying and castration do tend to encourage retention of fat. Are any particular breeds more susceptible to being fat? Labrador Retrievers are always very enthusiastic eaters and can become overweight if not carefully monitored. Bullmastiffs require lots of exercise to keep them trim. When a dog is on a diet, should he drink more? No. If your dog does this it may be a sign of a serious illness so consult your vet without delay. |