Is caffeine in coffee the same as caffeine in tea, soft drinks, energy drinks, and chocolate?
Yes. The physical and chemical properties of caffeine are the same whether it is from coffee, tea, soft drinks, energy drinks, or other caffeinated foods. It is the amount and the source of caffeine that differs from one caffeinated product to the next. Regardless, caffeine is caffeine. References Cornelis MC, El-Sohemy A, Kabagambe EK, and Campos H. Coffee, CYP1A2 genotype, and risk of myocardial infarction. JAMA 2006, 295:1135-1141 Sata F, Yamada H, Suzuki K, Saijo Y, Kato EH, Morikawa M, Minakami H, Kishi R. Caffeine intake, CYP1A2 polymorphism and the risk of recurrent pregnancy loss. Molecular Human Reproduction 2005. 11(5):357-60.
