When trying to determine if a dog is healthy, it’s important to look for simple signs, such as whether or not the dog is eating or drinking okay. Find out how a dog’s gum color can indicate whether or not she is healthy withhelp from a veterinarian in this free video on dog health. Expert: Gregory McDonald Contact: www.petpointers.com Bio: Dr. Gregory McDonald earned his Doctor of Veterinary Medicine degree from Ohio State University in 1979.