12 Surprising Sources of Caffeine

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

Credit: Getty Images

prev 9 of 15 next

Energy water

Riding the coattails of the fortified water trend is a new concoction from various bottling companies: caffeinated water. Some packaging, like that of the former Fruit2O Energy, which boasted as much caffeine as a cup of coffee, displays caffeine content prominently. But others, specifically those flavored with guarana, a Brazilian plant that is a natural source of caffeine, are less obvious; for example, Propel’s limited edition Invigorating flavor has 50 milligrams of caffeine, as does VitaminWater’s Energy flavor.

Next: Alcoholic energy drinks

» View All

Get the latest health, fitness, anti-aging, and nutrition news, plus special offers, insights and updates from Health.com!