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Phytatesâwhich are present in whole-grain breads, cereals, legumes, and other foodsâbind zinc and inhibit its absorption [2,12,13]. Thus, the bioavailability of zinc from grains and plant foods is lower than that from animal foods, although many grain- and plant-based foods are still good sources of zinc [2].
Shellfish like crabs, clams, lobsters and mussels are powerful sources of zinc that are prior included in the zinc rich foods list. A serving of 6 oysters contains 76 mg of zinc which is nearly seven times the recommended daily allowance of this mineral. Shellfish is not easily available.