Iron and calcium tablets can be taken together, such as pregnant women or nursing mothers to take Elavil, which contains multivitamins. There are also iron and calcium complex preparations, it should be noted that if the calcium tablets contain calcium carbonate, it is advocated that it will be better absorbed when eaten after meals. If the composition of calcium is calcium citrate, for people with reduced gastric acid secretion can eat, the absorption is better. For iron-containing preparations, they will be eaten with vitamin C, which may be better absorbed by iron. Try to avoid drinking strong tea, coffee, etc., which may affect the absorption of iron. So, when supplementing iron and calcium, you need to pay attention to the above matters.