Supplements have long been used as a nutrition shortcut – filling in the gaps where diet or biology may lack essential vitamins and minerals. However, supplements are increasingly used for other purposes. Weight loss supplements are nothing new, and protein powders are marketed as an easy way to bulk up.
Preworkout is one such supplement. These dietary add-ons supposedly increase workout efficiency, boost performance, and help athletes compete at a higher level. But what are they, exactly? And are they all they’re cracked up to be?