Sometimes it feels like fitness is more about what we do before and after a sweat sesh — but these little details can majorly accelerate our fitness goals. Pre-workout supplements offer a natural way to boost our burn and functional medicine doctor Josh Axe is educating us on the best ingredients to try and ones we should definitely avoid. Often, committing to a regular exercise routine is the hardest part of getting fit. So once you make that step, it’s only natural to want to get the most out of every workout. And starting with a pre-workout supplement can be one of the best ways to do that.