#2 – Milk
Yeah we know, puppies drink milk from their mothers after they're born. However, like humans (including moi), dogs can also suffer from lactose intolerance.
What's In It:
Milk contains milk sugar that dogs don't have the enzymes to break down.
What It Can Do:
Consumption of milk could lead to vomiting, diarrhea and other gastrointestinal problems. While it's not immediately life-threatening, it can contribute to serious bacterial exposure in dogs that could eventually lead to disease.