Dairy products like milk, yogurt and cheese have become very controversial. Many popular diets, including paleo and vegan lifestyles, avoid dairy completely. Yet we've also been told we need 3 servings a day to grow strong bones. So what's the truth? There are a few reasons that we should limit or avoid dairy, but it's not all bad. Is dairy natural? Some argue that dairy wasn't part of our ancestor's diets as cow milk was only intended for baby cows and is hard to digest. I