Caffeine has been shown to be much more than a fat burner. Research now suggests it can boost your energy, intensity, fat loss, pain threshold, workout recovery and even your health. Here’s the latest word on this superstar.
Carbohydrates can help you pack on muscle — or bodyfat — depending on when, what and how much you eat. Here's what carbophobes and carboholics need to know about this important macronutrient for optimal physique gains.