"I tell parents that in the first year, just steer clear of juice — once they've had it, they'll always want something else [other than water], and it's really sugary," Dr. Cohen said. "Once they're a little older, if they're going to have it, keep it under four ounces of juice per day, and really try to water it down. They're going to be at birthday parties and school and it's going to be out of your control . . . they're going to share the boxed drinks. If you limit it when you can and really try to water it down as much as possible, that'll make a difference."
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