One of your friends just found out that she is pregnant. Although her BMI is whithin the healthy range, she is concerned about gaining too much weight during pregnancy and not being able to lose it after the baby is born. She says she heard she should "eat for two" and not be worried about gaining too much weight. What advice would you provide concerning the need to gain some weight during this life stage? If your friends pre-pregnancy weight was 125 lbs- how much weight should she expect to gain for a healthy pregnancy? She also is looking for advice concerning whether she should breastfeed or formula-feed her baby. Her mother didn't breast feed her and she really doesn't know much about it so she thinks she will just use formula. After reading Chapter 18, what information would you provide to help your friend to decide to breastfeed?