Iron-rich foods include liver, kidney, heart, kelp, laver, soybean, spinach, celery, rape, tomato, apricot and jujube. Foods rich in zinc include beans, peanuts, millet, radish and Chinese cabbage. Tin-rich foods include wheat germ, garlic, asparagus, mushrooms, sesame seeds and seafood. Calcium supplement: eat more milk.

Zinc supplement: oysters, cooked walnuts, fresh scallops, animal offal, lean meat, sesame sauce, etc.