Now that you are breastfeeding you need higher levels of certain nutrients to keep both you and your baby healthy. Most prenatal vitamins do not contain enough of these essential nutrients, nor will they have an impact on breast milk production. Nursing Blend was scientifically-designed by doctors and nutritionists to specifically meet the nutritional needs of nursing mothers and their babies and to aid in milk production. Nursing Blend contains additional amounts of Vitamins D, B6, & B12 plus other important minerals and is endorsed by leading lactation specialist and MD, Dr. Kathleen Marinelli.