Although I believe whey protein, which comes from dairy is a great source of protein, I do not believe dairy is healthy in general. We have all been brainwashed to think that dairy products strengthen bones and stave off osteoporosis. But this is not the case. Walter Willett, M.D., professor of preventive medicine at the Harvard School of Public Health and his colleagues analyzed dietary information gathered from nearly 80,000 women, ages 30 to 55, over a 12-year period. They found no evidence that women who consumed one to three servings daily of milk or other calcium-rich foods–like cheese or yogurt–reduced their risk of hip fractures, the standard measure for osteoporosis.
The findings became even more dramatic when the Harvard researchers examined women who consumed three or more servings of dairy a day and found that none had any added protection against bone fractures. The data shows that Vitamin D appears to be much more important than calcium in preventing fractures. And interestingly, countries with lowest rates of dairy and calcium consumption (like those in Africa and Asia) have the lowest rates of osteoporosis.