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12 Surprising Sources of Caffeine

These 12 sources of caffeine, some hidden, some just plain weird, could be giving you the jitters.

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Breath fresheners

The makers of Jolt Cola, which had the maximum amount of caffeine allowed in colas before it was reformulated as an energy drink, also sell caffeinated gum and mints. Two pieces of Jolt gum provides the caffeine in a cup of coffee. Three of Penguin’s caffeinated mints equal the caffeine content of a cup of coffee, and just one Foosh mint contains the same jolt.

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