You still have to choose diet therapy, gradually increase the types of food, make the colors look better, arouse the baby's interest, and gradually get familiar with which foods he prefers. Don't worry, coax him.
Supplementary food and calcium supplement: milk, egg yolk, fish paste, shrimp paste, laver, seaweed soup and soybean milk. The most important thing is to bask in the sun.
Supplementary food zinc: liver mud, minced lean meat, chickens, ducks and geese, minced meat, fish mud, mushrooms, shellfish, etc.
Supplementary food to supplement iron: eat more vegetables, tomatoes, rape, celery, apricots, peaches, plums, oranges, dates, lean meat, egg yolks, animal livers and kidneys. Because iron in food is not easily absorbed. Therefore, it is necessary to take vitamin E at the same time.
Spend more time with him, hug him, make him feel safe, bask in the sun during the day when the sun is not very strong, and supplement vitamin D, so that he will not be unstable at night.
I hope it helps you.