
Enzymes are proteins that cause a specific chemical change in other substances (without being changed themselves). As an example, they can change starches, proteins, and sugars into substances the body can use. Enzymes also help in Blood clotting.
Enzymes are essential to almost all bodily functions. They are found in the mouth as saliva; stomach as gastric juice; intestines as pancreatic juice, intestinal juice; blood, and every other organ in the body.