Many dog owners believe milk is good for dogs because it is nutritious for humans, but a dog’s digestive system works very differently. Most adult dogs are lactose intolerant, which means their body does not produce enough lactase, the enzyme needed to digest lactose found in milk. When lactose remains undigested, it ferments in the gut and causes stomach problems.
After drinking milk, dogs may suffer from diarrhea, loose stools, gas, bloating, and abdominal pain. In some cases, vomiting can also occur. These symptoms may appear immediately or a few hours later, making it difficult for pet parents to understand the real cause.
