Vitaminmaxx guides
Energy guides
Where the caffeine in energy products comes from, and how to keep track of your daily total.
Why caffeine sources matter
Energy products often list several ingredients that contain caffeine: caffeine anhydrous, guarana, green tea, green coffee bean or yerba mate. Knowing which ones contain caffeine helps you add up your real daily total, including coffee, tea and energy drinks.
* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Information on this page is general and isn't medical advice. Talk to your doctor or pharmacist about your own situation.