

1. It's high in calories and saturated fat
Ounce for ounce, milk has about "the same calorie load as soda," Neal Barnard, president of the Physicians Committee for Responsible Medicine,tells The New York Times. Lactose is still a sugar, and contributes about 55 percent of skim milk's calories. Plus, milk and other dairy products are big sources of saturated fat, "and there are very credible links between dairy consumption and both Type 1 diabetes and the most dangerous form of prostate cancer." One serving of 2 percent milk has even been found to have the same saturated fat count as a serving of french fries

2. A lot of people can't drink it

3. Milk is often full of chemicals
"Commercial milk is disgusting," says Deborah Dunham at Blisstree. The mass-produced stuff is filled with growth hormones and antibiotics used to make cows lactate unnaturally. These additives may make the milk appear white and creamy-looking, but "all of this has been blamed for skin problems, acne, allergies, inflammation of the body," and much more. "Not to mention the fact that drinking cow's milk is simply unnatural — no other species drinks milk from another species except us."

4. Many people are allergic
Sure, the peanut allergy is the number one food allergy in the country. But did you know that the second most common type is "milk allergy"? It affects an estimated 3 million children in the United States. Like peanut allergy, the severity of milk allergy can range from mild reactions to being life-threatening.

5. You don't need milk for strong bones
"You don't need milk, or large amounts of calcium, for bone integrity, says the Times' Bittman. Not only are fracture rates the highest in milk-drinking countries, but it turns out that the biggest two factors contributing to bone strength are "lifelong exercise and vitamin D, which you could get from sunshine." All of this isn't to say that milk doesn't have its health benefits,says Adam Dachis at Lifehacker. But now there seems to be a likelihood that "dairy is a food you should eat because you enjoy it and not for its claims of better health." 

Sources: BlisstreeLifehackerNew York TimesScience Daily, Yahoo