Plum tastes sour, which can promote the secretion of gastric acid and digestive enzymes, promote gastrointestinal peristalsis, thereby increasing appetite and promoting digestion, and is especially suitable for patients with gastric acid deficiency, fullness after eating and constipation. Amino acids such as serine, glycine, proline and glutamine in fresh plum meat have diuretic and detumescence effects, and have adjuvant therapeutic effects on liver cirrhosis. Prunus mume contains a variety of nutrients, which can protect and lubricate the skin. The antioxidant content in plums is surprisingly high, which can be called "super fruit" for anti-aging and disease prevention.