Leafy greens such as kale, spinach, beet greens, and collard greens are excellent additions to a nursing mom’s grocery list because they address several issues and deficiencies in a postpartum woman. First off, they are all high in iron, which we’ve already discussed as an important nutrient to have plenty of during this phase of life. They’re also good sources of calcium. Keep in mind that nursing moms need 1,300 milligrams of calcium per day. And while we may not usually think of vegetables as calcium-rich foods, one cup of spinach contains 250 milligrams of the stuff, kale offers about 100 milligrams per cup, and collard greens serve up to 84 milligrams of calcium per cup.