The phrase "intestinal tract" refers to the long tube inside our body that starts from the stomach and ends at the anus. It is important for digestion and absorbs nutrients from the food we eat. Full definition
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)