For access to all of our training, gear, and race coverage, plus exclusive training plans, FinisherPix photos, event discounts, and GPS apps, sign up for Outside+.
Caffeine can be found everywhere these days—gels, chews, even some sports drinks. But what exactly does it do for our endurance performance?
Allen Lim, noted sports scientist and founder of Skratch Labs, dives into the topic of caffeine and endurance. How well does it work, and what’s the best way for caffeine to help you out on your next race day?