Acid CalmAcid Calm by EnzymeScience helps provide support for occasional heartburn and indegestion. While many products are formulated to address symptoms, Acid Calm contains natural enzymes that work with your body to soothe indigestion and enhance your bodys natural digestive process. Enzymes produced by the human digestive system play a vital role in overall health. They ensure proper breakdown, absorption and utilization of nutrients from the foods we eat.