Astragalus is widely used for immune support and recovery, but real-world benefits are most plausible when it’s used consistently and in the right context. Most products use dried root extracts rich in polysaccharides and saponins. Purafit rates astragalus strongest for immune and recovery support, with metabolic positioning more mixed. Look for clear extract labeling, and if you take immune-modulating medications, discuss herbs with a clinician.