What happens if a puppy drinks skim milk?

A puppy drinking skim milk easily gets lactose intolerance, causing abdominal pain, diarrhea, bloating, and vomiting; weak pups may dehydrate and die from severe diarrhea. Most dogs are lactose intolerant, and skim milk has as much lactose as whole milk.

Use pet goat milk or lactose-free milk; if only skim milk is available, give a little first and watch the stool, continuing only if no diarrhea or soft stool.