This article from Shape.com gives us more alternatives to sourcing out caffeine.
4 Healthy Caffeine Fixes—No Coffee or Soda Required
As anyone who’s gone on a sugar detox knows, the sweet stuff is majorly addictive. So we always assumed that soda cravings were a sign that your body was crying out for it. But as it turns out, the reason you’re dying for a Coke may be for the caffeine fix, not the sugar high. (Learn Everything You Need To Know About Sugar.)
In a move designed to secretly monitor their soda intake, researchers from Australia, New Zealand, and Thailand asked 99 young adults to “taste test” a lemon-flavored soft drink; some participants received a caffeinated version, while others were given decaf. The findings: The people drinking the stimulant-spiked sodas gulped down about 53 percent more than the rest (419 ml, compared to 273 ml in the decaf group).
While soda is a great occasional treat, it’s best as an indulgence, since too much is a surefire recipe for weight gain. (Check out the other Worst Drinks for Your Body.) The no-brainer substitute is coffee. But if you’re not in the mood for java, you can get your caffeine fix from one of these four energizing foods and drinks instead.