Several years ago I read a book by a microbiologist, who having contracted a tropical bugs during her research, went through quite a few rounds of antibiotics and still felt as if she were going to die. The remedy, when overdone, kills the micro-flora and fauna in the stomach. These inhabitants are a part of out immune system by providing a barrier so that bad bacteria can't cross into the blood stream as well as assisting in digestion. When they are killed off, we get sick. It turns out our helpful inhabitants love and thrive in a largely fiber diet. For best health, eat your veggies.