Oatmeal, barley, brown rice, and rye are wholesome grains that are easily digested and are a good source of natural fiber, which maintains a healthy intestinal tract for your dog. (chewy.com)
* This proprietary blend of ingredients is designed to nourish, stimulate and cleanse the lower intestinal tract to support the body's natural detoxification process. (naturessecret.com)
They work to clean the entire intestinal tract and give oxygen along the way. (colonzone.org)