My 15-month old is Mr. Thirst. He is weened (about 2 months now), but he has ravenous thirst and drinks about 50-60 ounces (ca. 1,6 liters) a day of fluids. We give him soy milk (he might be lactose-intolerant, we're not sure) and water, and occasionally watered-down juice. It seems to be way, way more than I first child needed. And most frustratingly, he demands fluids throughout the night.
Is this normal?