Organ meats like liver and giblets are some of the best sources of heme iron, with the added bonus of other minerals, vitamins, and protein. Oysters, mussels, and clams are also rich in iron if they aren’t on your regular menu, common fin fish, like haddock, salmon, and tuna, are also good sources. Chickpeas, fortified cereals, pumpkin seeds, soybeans, beans, lentils and cooked spinach are excellent source of iron.