Astragalus (Bei), also known as Huang Qi (Bei), is a traditional herb widely used to tonify qi and raise yang energy, supporting overall vitality and immune function. It has been traditionally employed to address conditions such as chronic fatigue, respiratory infections, and digestive weakness by enhancing the body's natural defenses and energy levels. Modern research suggests Astragalus may help modulate immune responses, making it beneficial in managing viral infections and reducing inflammation. Clinical studies have also investigated its role in cardiovascular health, showing potential to improve circulation and protect heart tissue. Additionally, its antioxidant properties contribute to cellular protection against oxidative stress, which is implicated in aging and chronic diseases. Astragalus has shown promise in supporting kidney function and may aid recovery in chronic kidney disease. While these benefits are supported by both traditional use and emerging scientific evidence, further rigorous clinical trials are necessary to confirm its efficacy and optimize therapeutic applications.