One of the most prominent reasons for dogs getting sick is being overweight. This happens when you feed them too much food on a regular basis. It is understandable that you would want to spoil your animal. After all, it is one of the most important beings on your life, and since getting food makes it happy you might want to make the most of this situation by giving it a lot of food and thus getting into its good graces. While this provides some temporary benefits for you, in the long run it is the worst thing that you could possibly do for the overall health of your dog.
You should know how much you are feeding your dog, and ensure that it gets the adequate number of meals per day. Puppies generally need to eat three times a day because they are growing, but older dogs that have managed to reach adulthood are going to require about two or so instead. If you have a smaller breed, try to give it around five to six hundred calories per day spread between two meals. Larger dogs are obviously going to require more food, so give them a total of a thousand to twelve hundred calories per day.
You also need to make sure that no one feeds your dog without your permission. People often think that giving dogs unplanned treats is a valid way of playing with the animal. Over time this will cause your dog to gain more and more weight until it is absolutely obese. When it gets to this point, reversing the damage that has been done will be next to impossible. Get advice on dog food so that you know what you are doing and are fully informed.