Protease Plus [Digestive, Immune] provides supplemental protease enzymes that break down proteins into smaller proteins and amino acids, maximizing digestion. They are found in the stomach and in the pancreatic and intestinal juices. As we grow older, our bodies produce fewer enzymes. When a deficiency of protease enzyme exists, undigested proteins can pass through the intestinal tract and remain undigested. These have been linked to a variety of unsavory health concerns. Protease Plus supports immunity by activating macrophages and natural killer cells. Protease also increases the flexibility of red blood cells, improving blood flow. NSP's formula provides a full spectrum of plant-derived trace minerals, which help activate enzymes. Each capsule of NSP Protease Plus contains 60,000 HUT protease in a base of beet root fiber and plant-sourced trace mineral concentrate.