To make the most of your milk, your body needs to be nourished as well — not only does your body need to supply nutrients to your baby but it needs to supply nutrients to you too, to keep you healthy and strong.
When breastfeeding, your body needs an additional 300 calories every day to help your baby grow. The amount of nutrients you need to eat depends on your weight before pregnancy, your activity level, and how many babies you are breastfeeding.