婴儿，是指从出生至一周岁的孩子。这段时期是生长发育最快的一年，一年内体重的增加为出生时的两倍，因此需要在营养上满足其快速生长发育的需要。中国营养学会指出，婴儿阶段先鼓励母乳喂养，并且在母乳喂养4个月后逐步添加辅助食品。母乳是婴儿唯一理想的均衡食物，而且独具 Baby, refers to the child from birth to one year old. During this period is the fastest growing and developing one year, the increase in body weight twice as much as the birth, so the need to nutritionally meet the needs of its rapid growth and development. Chinese Nutrition Society pointed out that the first stage of breast-feeding in infancy encouraged, and 4 months after breast-feeding and gradually add supplementary food. Breast milk is the only ideal balanced baby food, and unique