If you need to supplement nutrition in the 16th week of pregnancy, you should eat more food high in protein and containing a variety of trace elements in moderation to ensure the supply of nutrients to the organism. Usually, when a woman is 16 weeks pregnant, the development of the fetus is manifested in the growth of the central incisors and the appearance of hair. At this stage, more nutrients are needed for supplementation. Generally, you can eat more food high in protein and containing many kinds of trace elements in moderation under the guidance of the doctor, such as milk, fish, eggs, red and green vegetables, beans, seafood, and bone food. It is worth noting that nutritional supplementation during pregnancy should be in moderation, and food can not replace medication, if you find that there are abnormalities in the body should be timely to the hospital for a detailed examination, strictly prohibit the intake of allergic foods.