With more than two dozen flavors, GU Energy has an energy gel for everyone. Take a look inside the making (and ingredients) inside the company's newest flavor, chai latte. Tom Taylor | Aug 10, 2018 ...

A biker puts an energy gel under his shorts prior to the start of the 17th stage of the Tour de France in 2013. (Christophe Ena/AP) “Mmmm,” Amy Cragg, a marathoner competing in the Rio ...

At mile 5, I go with the caffeine-free Toasted Marshmallow, Campfire S’mores or Peanut Butter GU energy gels. Then at mile 10, I want a 20 mg. caffeine boost with the Salted Caramel, Chocolate ...