7.Caffeinated Gum
It’s a good idea to do your homework on this. The range can be large and, like energy drinks, there can be hidden caffeine in ingredients like guarana. After meeting with the FDA, Wrigley, a major U.S. gum maker, decided not to sell gum with caffeine because of health concerns.
8.Dark Chocolate
Because chocolate naturally has caffeine, the FDA doesn’t require makers to list how much theirs has, so it’s tough to know. It’s not too much if you stick to one serving, which is about a third of a typical dark chocolate bar. More than that and the numbers can start to add up.