Enzymes are active in every cell of your body every second. Enzymes change things into usable forms. The class of enzymes you're probably most familiar with is the one that involves digestion . The mouth, the stomach, the pancreas, the liver, and the intestine produce various enzymes whose job is to break down any food we eat into usable components. No matter how greasy, no matter how much extra cheese, or how much white sugar, no matter how indigestible a food is, your body will try to break it down by means of enzymes.
Some foods are very easy on the body.
Turns out, those are the ones which contain within them all the enzymes necessary for complete digestion. Raw fruits and vegetables. These foods don't require that the body waste energy producing a lot of powerful digestive juices in order to change them into a usable form. Dr. Edward Howell, the leading world authority on enzymes, tells us it's as though we are given a bank account of enzyme energy at the beginning of our lives. The more of that bank account we have to use for digestion, the less is left over for the thousands of other tasks which enzymes have to perform in our bodies.