The Truth About Stimulant-Free Preworkout Supplements.
Stim-free preworkout supplements may not be necessary for a boost before a workout, as they often lack significant ingredients without caffeine. Instead, consuming a snack with carbohydrates can provide the energy needed for a better gym session, especially if the workout is long and you haven't eaten in a few hours. Carbs are a major energy source for muscles during intense exercise, and there is increasing evidence that pre-workout carbs can lead to better performance for lifters.