What are some effective ways to get a healthy digestive system?

Healthy diet: The best way to get healthy digestive system is to eat a healthy diet. Avoid highly processes foods, substituting whole grains, generous portions of vegetables and fruits. Eat appropriate portions. Proteins can come from meats, fish, cheese, yogurt. Generally "wild" or free range have better balance of omega-3 to omega-6 fatty acids. Greek yogurt is a good natural "probiotic".