What are doctor-recommended strategies that you can keep your digestive system healthy?

Eat a healthy: Hi fiber diet, drink 80-100 ounces of caffeine free/alcohol free fluids daily, 20 oz extra per 30 minutes of strenous exercise. And never do any of those colon cleansing scams. They are not necessary, are of no documented value or need and all they do is redistribute your wealth to those who are selling you that garbage.Get a colonoscopy at age 50 or if having symptoms or at high risk due to famil.