Lemon water can be drunk to quench thirst and thirst, and the vitamin C contained in lemon water can have an antioxidant effect. But not all people or all the time are suitable for drinking lemon water, lemon water drink some matters needing attention: 1, lemon water has a strong acidic, fasting or excessive drinking lemon water will cause some stimulation of the gastric mucosa, may induce excessive secretion of gastric acid, resulting in stomach discomfort; especially for patients with gastritis, and may aggravate the gastric ulcer attack, aggravating the disease; 2, lemon water should not be taken with seafood type Lemon water should not be taken together with seafood, meat, milk and other high protein and high calcium food, lemon contains more fruit acid, and high protein and high calcium food taken together may cause protein coagulation, or combined with calcium, affecting the digestion and absorption of protein and calcium, and even cause gastrointestinal discomfort; 3, lemon allergic people should not drink lemon water to avoid allergic reactions; 4, lemon water contains acidic ingredients such as fruit acid and citric acid may It is best to rinse your mouth with water after drinking.