1, spinach and tofu are very similar: oxalic acid in spinach and calcium in tofu form calcium oxalate, which makes calcium in human body unable to be absorbed. 2, spinach cucumber: vitamin C will be destroyed. 3. Spinach is very similar to cheese: the chemical components contained in cheese will affect the absorption of rich calcium in spinach. Spinach is similar to eel: it is easy to have diarrhea when eaten together. 5, cucumber spinach phase grams: vitamin C in spinach will be destroyed by the decomposition enzyme in cucumber. 6. Milk and spinach: Eating together can cause dysentery. 7, leek: can not be eaten with spinach, both of which have a slippery bowel effect, which is easy to cause diarrhea. 8. Amaranth: Not suitable for eating with spinach and fern powder. 9. Don't cook tofu (soybean milk) with spinach.