Whether in food, a drink, or supplements, caffeine (aka, 1,3,7-trimethylxanthine) acts as a central nervous system stimulant. According to leading research, it helps to promote focus and energy. This is beneficial in itself right before training because every hard trainer wants to seriously enhance energy levels during workouts.
Overall, caffeine is a must-have supplement staple in anyone’s training, diet and supplementation program. Don’t miss out on the benefits of caffeine!
First Nutrition 