Consult your vet immediately. Watch your pet s weight. An obese dog is likely to get age-related problems like arthritis or heart disorders. Add extra fibre in his diet as that helps in losing weight and in better absorption of nutrients. Make exercise a daily routine, at least 20 minutes everyday should be spent just running around.
Exercise helps in shedding excess weight and prevents frequent stomach disorders.
Give your dog lots of fresh fruits, vegetables and grains instead of commercial pet food. Fresh foods help in building up the immune system and thus stave off age-related diseases. If you like giving your dog constant treats then switch to healthy ones. While a cracker or a piece from your plate may make it happier, they are not good for his general well being. Instead give him salad and fresh fruits as treats.