Spinach and leeks are generally not harmful when consumed in moderation, and there is no incompatibility between the nutrients of the two, nor will they produce harmful substances. In the theory of nutrition and food safety, so far no food poisoning cases and reports have been found due to “food incompatibility”. China Nutrition Society commissioned Lanzhou University on 100 healthy people have “food matching” related tests, including “leek + spinach”, after eating for 1 week of continuous observation, and did not find any abnormal reaction. Each 100 grams of spinach contains 28 calories, of which 4.5 grams of carbohydrates, protein 2.6 grams, 0.3 grams of fat, 1.7 grams of dietary fiber, vitamin A487 micrograms of vitamin E1.74 milligrams of potassium 311 milligrams of calcium 66 milligrams, iron 2.9 milligrams. Spinach is a high quality source of dietary fiber, vitamin A, and potassium. Each 100 grams of leek contains 30 kcal of energy, 4.35 grams of carbohydrates, 2.5 grams of crude fiber, 9 milligrams of plant sterols, 92 milligrams of calcium, 296 milligrams of potassium, vitamin C 58.1 milligrams of vitamin C and other nutrients. Both can provide the body with a large number of nutrients, both can also be eaten at the same time, increasing the diversity of food, rich in nutrition, but it is recommended to eat in moderation, usually pay attention to the nutritional mix.