Opinions about milk are divided: some believe dairy is a key to weight loss, while others believe cows milk is not natural food for humans.
Most non-white people are lactose-intolerance. This can cause gas, bloating, and abdominal pain. This happens to me. Drinking lactose-free milk, or taking the enzyme lactase can help with these symptoms and allow lactose-intolerant people to enjoy dairy.
I drink lactose-free skim milk 8 oz with my oatmeal every morning.