Here's why:
* Lactose Intolerance: Most adult dogs are lactose intolerant. This means they lack the enzyme lactase needed to digest lactose, the sugar found in milk. Consuming milk can lead to digestive issues like diarrhea, gas, and vomiting.
* Nutritional Imbalance: Cow's milk is designed for calves, not dogs. It can provide excess calories and fat, potentially leading to weight gain and other health problems. It also lacks the nutrients dogs need.
Alternatives:
* Dog-Specific Milk: Several commercial dog milks are available, formulated specifically for dogs. These are usually lactose-free and contain essential nutrients.
* Plain Yogurt: If your dog can tolerate dairy, small amounts of plain, unsweetened yogurt can be a good source of calcium and probiotics.
* Water: Water is the best and safest option for hydration.
If your dog shows any signs of digestive upset after consuming milk, stop giving it to them and consult your veterinarian.