Eating a small amount of spinach does not affect the absorption of calcium tablets. After eating a large amount of spinach, it is recommended that you do not take calcium tablets and take them after 3-4 hours. Since spinach contains a lot of oxalic acid, after eating spinach, oxalic acid will electrolyze oxalate ions, which in turn may form deposits of calcium ions. Eating calcium tablets after eating spinach may prevent the body from absorbing calcium tablets, and it is also easy to form calcium oxalate stones. Therefore, you should not take calcium tablets after eating spinach. It is recommended to eat spinach 3-4 hours before taking calcium tablets, or boil spinach first, wait for oxalic acid to dissolve in water, and then pour off the water before eating. Eating spinach helps in the secretion of stomach acid and digestion of food. Spinach is rich in vitamin C, carotene, and minerals such as iron, calcium and phosphorus, which can supplement the body’s nutritional needs. It is recommended to eat a light diet and avoid spicy stimuli. Ensure adequate sleep. Appropriate exercise is conducive to strengthening one’s physical fitness.