Milk is a safe treat in small quantities. A few tablespoons of cow's milk or goat's milk on an occasional basis can be a nice reward for your dog without the side effects of overindulgence.
What happens if a dog drinks milk?
Though they may be able to tolerate the sugar and protein, whole milk has a high fat content that could trigger vomiting and diarrhea nonetheless. It's also high in calories due to the fat and sugar content, so if dogs drink milk or eat dairy frequently, they could develop obesity or pancreatitis.
Why milk is not good for dogs?
Milk contains lots of good stuff that dogs need in their diet, including protein, calcium, and vitamins A, D, and B12. But milk isn't the best way to get these nutrients, and the reason is that milk is too high in sugar.
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