Put healthy eating at the top of your dog's resolutions! Diet and weight can top the list of New Year's resolutions–for us and for our dogs. Whether you have four legs or two, being overweight has similar effects on the body: extra strain on the bones and joints, extra work for the heart and other organs, and an extra challenge to keep other health conditions, like diabetes, under control. But how do you know if your dog is eating too much, or perhaps too little? Here are some tips to help to make sure he's eating just the right amount.