2 Bacteriostasis and disease prevention Polygonatum can inhibit bacteria, relieve diseases caused by skin fungi, enhance myocardial function and prevent some cardiovascular diseases.
3 nourishing yin and moistening lung Polygonatum odoratum has the functions of nourishing yin and moistening lung, promoting fluid production to quench thirst, tonifying kidney and strengthening body, strengthening spleen and nourishing blood. "Rihuazi Materia Medica" records that Polygonatum sibiricum "supplements five strains and seven injuries, helps bones and muscles, stops hunger, resists cold and heat, benefits the spleen and stomach, and moistens the heart and lungs". It is suitable for dry expectoration, dry mouth, fatigue, dizziness, soreness of waist and knees, dry eyes, indigestion, loss of appetite, forgetfulness, palpitation and other symptoms.
4 Enhance immunity Polygonatum has the functions of lowering blood pressure, blood sugar, blood lipid, preventing atherosclerosis, delaying aging and resisting bacteria, and Polygonatum polysaccharide has the function of immune activation.