Free radicals are very reactive natural chemical molecules present in our bodies that are unstable and hence cause damage to the cellular structure in our bodies through reaction with organic molecules present in our system. This process leads to cell damage and can even cause death of cells in our bodies.

Free radicals are always present in our bodies, but are kept in check under normal circumstances. Medical evidence suggests a linkage of excessive quantities of free radicals in the body to ageing and the onset of serious disorders like cancer and heart diseases.