Why is milk bad for you?

Walter Willett. M.D., Ph.D. states that some evidence shows that drinking more than three cups of milk a day is linked to developing prostate or ovarian cancer. Milk is also relatively high in calories, which works against those who are watching their weight.

Dr. Willett explains that drinking milk in smaller quantities is fine. WebMD notes that calcium can be easily obtained in other ways. For those who cannot or choose not to drink milk, leafy green vegetables, such as collards, spinach and bok choy, provide good sources of calcium. Other sources of calcium include green beans, calcium-fortified orange juice and soy milk.