Can't Tolerate Milk? Just Go Easy

Good news. If you're lactose intolerant -- as one in every four to five Americans is -- you do not have to shun dairy products completely. Unlike a milk allergy, in which exposure to even a small amount of milk protein can trigger an allergic reaction, lactose intolerance is a matter of degree. Whereas a milk allergy is the immune system's rejection of milk protein, lactose intolerance results from inadequate lactase, the enzyme