Other powerful neurotransmitters such as dopamine, GABA, and nor-epinephrine are also produced in the gut as well. For a complete understanding of how our digestion affects our mood, see the article here on the brain in your belly by Marc David. How to Heal Your Digestive Tract: 6 Powerful Herbs and Foods. Ghee is a form of clarified butter used in Ayruvedic cooking and healing. Ghee is a butter alternative for lactose-intolerant people. Ghee is useful in balancing and aiding digestion, increases assimilation, and enhances the nutritional value of foods.