Parental nutrition during the perinatal period can support intrauterine growth, postpartum healing, milk production, milk composition, and infant extrauterine growth and development. As lactation consultants, it is important that we are able to provide general dietary education during this time frame. In this presentation, we will review the basic endocrinology of milk production, how maternal diet does (or does not) impact the composition of human milk, which micronutrients may be of particular importance in the maternal diet, and general information about supplements during lactation.Review perinatal nutrition for parents, including herbs and medications.