Any strategies to get a toddler to drink more water? My 2yo DS struggles with constipation and I know it's primarily because he drinks a lot of milk and refuses to drink much water. He also won't drink any kind of juice, whether we water it down or not.

We've tried limiting to mealtimes and getting him to drink water between meals, but then he'll just wait for mealtime and chug his milk. Do I just cut it out cold turkey? Our ped said he doesn't need it for calories/fat anymore, but I don't know if I have the energy to deal with the imminent meltdowns of trying to wean him off it completely...