Symptoms of indigestion are often mistaken for excessive gastric acid. This leads many to take acid blockers in attempt to lower stomach acid, when the true culprit is ly to be insufficient levels of hydrochloric acid (HCl). Digest HCL provides two essential components of healthy digestion: HCl and the digestive enzyme, pepsin. HCl is vital for the proper digestion of protein and the absorption of vitamins and minerals. Pepsin is one of the first enzymes to initiate protein digestion and works in synergy with HCl to provide complete protein digestive support.