Astragalus is rated as one of the world's premier immune tonifying (regulating) substances, and is considered in the Orient as a quintessential protective super tonic herb. The active constituents of astragalus consist of triterpene glycosides, polysaccharides and flavonoids. Astragalus also contains numerous amino acids, trace elements and various other components. Hundreds of studies seem to support the potent immune modulating activities of astragalus root. One particular astragaloside found naturally in astragalus is known as Astragaloside IV. This saponin has been determined to be the most active health-positive constituent in astragalus. It is believed that Astragaloside IV may be able to help protect telomeres and to prevent their deterioration over time due to stress and toxicity. Telomeres are chemical bindings at the end of our chromosomes that hold our DNA in place. Astragalus has long been considered a major tonic for athletes and those who work hard physically.