Well....unless you're growing or raising your own food, isn't that the point?! We've all become dependent on the system.
Actually, if you have some time look into this interesting website about milk. Real milk (raw)is actually good for you; there's an article from a Harvard doc who studied the benefits of raw milk and clearly writes his disappointment because the medical industry isn't interested in real cures or preventative. See "Milk Cures". There's also a big scandal about pasturization (Alta Dena govt shutdown, big $$ in pasturization), etc. Here