Can dogs drink milk and what are the dangers of drinking milk?

 8:56am, 4 July 2025

Friends who raise dogs all hope that their dogs can grow up healthily, so they always hope to give their dogs some milk in their lives. But can dogs drink milk? This is a question that friends who raise dogs are always worried about now. The specific answers we give here.

1. Dogs cannot drink milk

Many friends may think that dairy products are rich in protein, fat, calcium and other nutrients. I always think that milk is a good and essential nutrient for both human and dogs. In fact, this is quite a misunderstanding.

There are two ways to metabolize carbohydrates in pets, one is glucose metabolism, and the other is volatile fatty acid metabolism. In daily life, some pet enthusiasts often drink some milk for pet dogs. In fact, this is unscientific because milk contains high lactose, and pet dogs generally lack lactase. Therefore, pets cannot fully digest and absorb lactose after drinking milk, so diarrhea, bloating and even vomiting will occur. Therefore, try not to feed milk to pet dogs. You can choose yogurt with lower lactose for them to drink, and the smell of yogurt will help improve the palatability of pet dogs. Especially for newly born pet dogs, the nutritional value of feeding dog milk is far greater than that of cow's milk. From the comparison table below, we can see the nutritional difference between dog milk and cow's milk:

[Comparison table of nutritional content between dog milk and cow's milk]

Ingredients Dog milk (%) Milk (%)

Protein 9.3 3.5

Fat 9.5 3.8

Lactose 3.0 4.8

Inorganic substances 1.2 0.7

2. The harm of dogs drinking milk

Long-term drinking of milk will cause great harm, and the common symptoms are mainly caused by diarrhea and vomiting. This is mainly due to the discomfort caused by milk in the dog's stomach. So dogs cannot drink milk.

In order to keep your dog from lacking nutrition, parents will naturally think of feeding their dogs to drink milk. However, long-term drinking of milk can lead to symptoms of diarrhea and vomiting. This is because the dog's stomach and intestines have difficulty digesting the lactose in milk, which leads to gastrointestinal discomfort. This is actually very similar to people. The stomach and intestines of Chinese people are not very suitable for drinking milk. There are many people who do not absorb lactose, and the stomach and intestines of European and American people are more suitable for them.

This is very contradictory. How can we effectively help the dog get more nutrition without side effects? Then we must decide whether it is necessary to feed dairy products based on your dog's own condition. If the dog is in good health and has a very healthy stomach, parents can consider feeding milk. On the contrary, if your dog usually likes to get sick and has poor physical condition, it is recommended that you choose carefully. Sometimes it may backfire and fail to have a good effect, which will make the dog more suffering.

We have sufficient understanding of the question of whether dogs can drink milk. It can be seen that dogs cannot drink milk, so in life, everyone must not think that milk is a good supplement, so that they can drink it. This is a very wrong way, and everyone must pay attention.