Nearly two-thirds of kids have caffeine in their diet. Here's how it's impacting their health

A new report from the CDC found nearly two-thirds of American kids between the ages of 2 and 19 have caffeine in their diet. On average, it found kids had 19.4 milligrams of caffeine on a given day. CBS News medical correspondent Dr. Celine Gounder explains the impact on their health.
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