What are sterols?
Sterols are fats found in every plant, whether it is a fruit or vegetable. Chemically, sterols are very similar to the animal fat cholesterol. Animals make and use cholesterol, but plants use phytosterols.

Sterols are abundant in all plants, but because of the processing of most foods, naturally occurring sterols are leeched from plants. And even if we could eat plant foods rich in sterols, we would have to eat 500-700 grams of fresh fruits and vegetables to derive 100 grams of sterols. This makes supplementing sterols helpful.

Why are sterols 'smart'?
Our bodies possess the most powerful defensive weapon, the immune system. T-cells are a crucial part of the body's immune response to foreign substances.

Sterols work by increasing the output and responsiveness of TH-1 (T-helper) cells, 'smart' cells which 'decide' what to attack and destroy. It also boosts another type of cell critical to the immune response--Natural Killer (NK) cells. NK cells work by identifying, attaching to and injecting deadly granules into harmful invaders.

Research findings and clinical studies
Ten years of clinical trials at the University of Stellenbosch in South Africa have revealed that the active compounds found in Moducare are potentially effective immune supporters. One study, published in the International Journal of Immunopharmacology, showed that sterols have a significant effect on T-cells. Another experiment showed an increase in Natural Killer Cell activity when sterols were used.