When your neighbors brought their baby home from the hospital he weighed less than at birth. They were very concerned; what would you tell them?

a. They probably need to try to feed the newborn more frequently.
b. That it is typical for babies to lose weight right after birth. He should regain the weight before a couple of weeks go by.
c. The wife probably cannot breast-feed and they should start formula feeding immediately.
d. He must have an eating disorder.

B. Neonates lose about 10% of their birth weight in the first few days, but should be back to birth weight by the second week. It is typical for babies to lose weight right after birth.