Most pre-workout supplements contain caffeine because it’s been proven to promote weight loss, enhance physical performance and improve cognitive function.
This may be a problem for anyone who’s trying to wean off caffeine, is caffeine intolerant or is just not interested in putting caffeine, or other stimulants, in their body.
Fortunately, there are pre-workout supplements on the market that are caffeine free, and most of them are also stim-free pre-workouts.
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