Pre-workout supplements are intended to boost energy so you can work out harder and longer. Taking pre-workout can cause side effects like nausea and shakiness due to high caffeine content.

Everything you need to know about pre-workout supplements: from their benefits to the best pre-workout drinks and powders to ...

Depending on your workout and goals, pre-workout supplements may be a way to get performance benefits. Pre-workout products are one of many supplement options that aim to improve athletic ...