Whippets are lean dogs with considerably low body fat and fur covering. This may make one assume that the dog is underweight when the ribs, shoulder, and pelvic bones are visible. The bony structure is visible, but it should not be visible from afar or protruding through the skin. This visibility may be due to improper quality/quantity of the diet or an underlying issue such as infections or genetic conditions. It’s paramount to visit a certified vet or a nutritionist for precise diagnosis and advice.