Well once they are about 12 months.....the idea is to have liquids become beverages that accompany meals but the meals themselves provide a good deal of the nutrition toddlers need. This is in contrast to now, the liquid itself BEING a meal that provides most of the essential nutrition. SO as everything is a transition, it's something that you'll start working toward and eventually arrive at. It took us awhile, but I probably was able to do lunch first, then dinner and eventually breakfast. DD wanted milk right away so still had that first in the morning and breakfast later. It sort of happens as you work on transitioning to sippy cups as well.
Does that make sense?