Milk can do a body good. But there's a few things to know before you buy.

First, choose organic milk that is free of hormones, antibiotics and pesticides. Next, opt for raw milk that has not been pasteurized. You can order raw milk online or contact your local Weston A. Price Foundation.

If cow's milk causes digestive upset, goat milk, kefir or buttermilk may be a option.   

Rich in protein, milk is an excellent source of calcium, vitamin D and riboflavin. Milk also contains tryptophan and lactose.

As with all dairy products, choose organic milk (preferably from grass-fed cows) that is rBGH-free.

Glycemic Index=27 (whole milk), 32 (skim milk)
Glycemic Load=3 (whole milk), 5 (skim milk)

Refrigerate milk promptly and keep dairy products at their freshest by keeping at or below 45°F.