The World Health Organization, operating without the influences of the dairy, formula and porn industries (unlike American doctors) recommends breastfeeding for a minimum of 24 months. Certainly give her a sippy cup with water, and make sure that she is eating a variety of healthy foods: fruits, vegetables, whole grains, beans, lentils, tofu, etc.
Remember that cow milk is for baby cows, and humans don't need it. Like many other nutrients, and despite the claims of the dairy industry, plant based calcium is superior to animal based. Here is some of what the doctors at the Physicians Committee for Responsible Medicine say: http://www.pcrm.org/health/prevmed/building_bones.html
at 9:58 PM on Jun. 24, 2009