Shellfish
Even though all shellfish contain sufficient quantities of iron, oysters, mussels, and clams contain the highest sources. A hundred grams of calms can give you over a hundred percent of the required daily intake of iron. Vitamin c, protein, and vitamin B12 are also present in large quantities in shellfish. The only concern about shellfish is the mercury and toxin content usually present in shellfish. The benefits of taking shellfish, however, are much more than the risk of toxins. [17, 18]
