1. Taboo: People with stomach problems, especially those with excessive gastric acid secretion, should not eat green plums. People with exogenous coughs should not eat green plums as it may aggravate the condition. People suffering from damp heat and diarrhea should not eat green plums. Green plums can promote defecation and can aggravate diarrhea.

2. Efficacy: Green plums are sour and have the effects of promoting body fluids, quenching thirst, appetizing and relieving depression. Eating green plums or dried products made from green plums or candied green plums can stimulate the sense of taste and make people have the urge to eat. Appetite, can improve anorexia, undereating, etc. Green plum is a green fruit that contains a large amount of organic acids and a large amount of fiber. After use, it can promote gastric acid secretion and intestinal peristalsis, help digest food, and improve the ability of the gastrointestinal tract to digest food. It has the effect of strengthening the stomach and digesting food. Green plums have a high vitamin content and are rich in types. They also contain various natural minerals, which can stimulate metabolism in the body and relieve fatigue.