People with kidney deficiency can eat astragalus, because astragalus is sweet in flavor, slightly warm in nature, belonging to the lung and spleen meridians, and has the effects of tonifying qi and elevating yang, benefiting qi and consolidating the surface, supporting toxicity and generating muscles, and inducing diuresis to reduce swelling. Kidney main gas, the kidney can take in the lungs inhalation of clear gas, in order to prevent shallow breathing and affect the respiratory function of the lungs, that is, the lungs for the gas of the Lord, the kidney is the root of the gas, so people with kidney deficiency to eat astragalus can help the kidney gas, help the lungs respiration, you can achieve the role of qi consolidation of the surface. If kidney yang deficiency is manifested by diarrhea, body fatigue, edema, prolapse, etc., taking astragalus can replenish qi and promote yang, promote water retention and eliminate edema, and treat kidney deficiency.