A remark at the outset: one should distinguish between digestive enzymes (formerly called ferments) and intracellular enzymes. The former have been in use for a long time; they include lipases, amylases, peptidases or the well-known bromelain. They work excellently in the intestine, but only partially pass into the blood and not at all into the body cells. They "crack" larger molecules and in this way "clean" the intestinal contents and to a limited extent the blood. Beneficial, of course. However, intracellular enzymes have far greater tasks; without them there is no life. The entire intermediary metabolism needs them and consists of them, i.e. energy production towards ATP (together with coenzymes) as well as protein production and the monitoring of DNA functions. Without them, the body's cells would be unable to function. At any moment, mainly as a result of oxidative and nitrosamine stress, thousands of DNA changes occur, the repair of which is the responsibility of enzymes.
