Six-month-old babies eat egg yolk in moderation will not be constipated, excessive consumption has the risk of causing constipation. Egg yolk is rich in lecithin, vitamins, iron, calcium and other nutrients, six months of the baby is in a critical period of growth and development, eat egg yolk in moderation for the baby’s growth and development to provide nutrients, but also exercise the gastrointestinal function, to promote intestinal peristalsis, will not lead to constipation. It should be noted that, although the egg yolk is nutritious, but the six-month-old baby gastrointestinal tract function is not well developed, relatively speaking, function is poor, blindly consume egg yolk in excess, can aggravate the burden on the digestive tract, causing gastric distension, indigestion, constipation and other symptoms. If the baby needs to add complementary foods, can be carried out under the guidance of a professional physician, so as to avoid improper feeding, resulting in adverse consequences.