"If you have chronic intestinal problems, start a probiotic regimen (we recommend brands that contain Lactobacillus GG and Bacillus coagulans), and make sure you eat plenty of apples. They’re loaded with pectin (a prebiotic); it helps balance gut bacteria in favor of the good guys. Asparagus, chicory root, garlic, onions and oats also contain prebiotics. And if that doesn’t help, talk to your doc about repopulating your intestines with friendly bacteria."
Drs. Oz and Roizen: How play fuels kids’ brains | Wichita Eagle