Digestion is the process by which organisms break down sludge, creating as by-products methane gas, carbon dioxide, solid organic material and water. Digestion involves physically breaking down the food by chewing and churning in the stomach. Food is also chemically broken down by digestive juices that are produced in the stomach and other parts of the digestive tract. Starts in the mouth, continues in the stomach and small intestine, and is completed in the large intestine.

Digestive enzymes are complex proteins involved in digestion that stimulate chemical changes in other substances. Digestive enzymes help break down these complex sugars into simple sugars that are more easily digestible.

Digestive enzymes are enzymes in the alimentary tract with a purpose of breaking down components of food so that they can be taken up by the organism. Digestive enzymes include pancreatic enzymes, plant-derived enzymes, and fungal-derived enzymes. In humans, digestion begins in the mouth where food is chewed with the teeth. The process stimulates exocrine glands in the mouth to release digestive enzymes such as salivary amylase, which aid in the breakdown of food, particularly carbohydrates.

Digestive enzyme supplements are products designed to mimic the effects of naturally occurring digestive enzymes found within our bodies that aid in the digestion of food. Major supplemental digestive enzymes are Amylase, Bromelain, Cellulase, Lactase, Lipase, Pancreatin. Papain, Pepsin, Chymotrypsin and Trypsin.