The Food and Drug Administration is closely watching the marketing of these foods and wants to know more about their safety.
The FDA said Monday it will look at the foods' effects on children in response to a caffeinated gum introduced this week by Wrigley. Alert Energy Gum promises "the right energy, right now."
The agency is already investigating the safety of energy drinks and energy shots, prompted by consumer reports of illness and death.
Michael Taylor, FDA's deputy commissioner of foods, said Monday that the only time FDA explicitly approved the added use of caffeine in a food or drink was in the 1950s for colas. The current proliferation of caffeine added to foods is "beyond anything FDA envisioned," Taylor said.
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