Parents worry that they do not have enough milk for many reasons: No sensation of a let down No longer leaking milk Mom’s breast do not feel full (or engorged) anymore Unable to produce milk with a pump Baby does not stay at the breast as lo...

婴儿需要维生素D，用于强壮，健康的骨骼和牙齿。维生素D的严重缺乏可能导致佝偻病（导致永久弯曲的腿的骨骼畸形）等严重条件。大多数母亲用强化食物吃各种各样的饮食（你...