To better understand the importance of A Delivery system in delivering nutritional supplements to your body on a cellular level we must first understand “Digestion” Digestion, as defined in Dorland’s Illustrated Medical Dictionary, is “the process or act of converting food into chemical substances that can be absorbed and assimilated.” A healthy digestive system is the gateway to better health and the delivery of the nutrients to the cells is the key that opens the door. Unfortunately, most people don’t give digestion or delivery of nutrients much thought—that is, until something goes wrong.