Some foods that can help to add zinc to the person's diet are oysters, baked beans, yogurt, crab, beef shanks, pork shoulder, spinach, nuts and whole grains.

People can supplement zinc safely and effectively by selecting food with high zinc content to adjust diet structure.

In the diet, it is necessary to give children pica eating fish, shrimp, lean meat, such as high-protein food and the hard shell of zinc, iron-rich food.