This is a commonly belief with no basis in actual science; see this answer from a Mayo clinic dietician. http://www.mayoclinic.org/healthy-lifestyle/nutrition-

This is a commonly belief with no basis in actual science; see this answer from a Mayo clinic dietician. http://www.mayoclinic.org/healthy-lifestyle/nutrition-and-healthy-eating/expert-answers/caffeinated-drinks/faq-20057965 http://www.mayoclinic.org/healthy-lifestyle/nutrition-and-he...