K2019-04-13T01:11:06+00:00Caffeine
Caffeine is a popular supplement used to improve performance and increase alertness. Americans consume 200-300 milligrams of caffeine per day. As one of the most widely used ingredients in pre-workout supplements, it's important to verify its efficacy in improving exercise outcomes.
What is Caffeine?
Caffeine is a substance found naturally in many...
