Category - Caffeine

Caffeine is a naturally derived stimulant and is the most frequently ingested substance in the world. Caffeine is most commonly used to improve mental alertness and has also been shown to positively effect energy expenditure and can be an effective ergogenic aid. Studies repeatedly report caffeines ergogenic effect [with doses ranging from 3 to 9 mg / kg]. It may also use lipids as energy source during aerobic exercises.