RegenESlim Appetite Control Capsules voluntarily recalled due to the presence of DMAA.

FDA warns consumers about caffeine powder. 

FDA advises consumers to stop using any supplement products labeled as OxyElite Pro or VERSA-1. Please see the following advisories: FDA -10/08/13, FDA - 10/11/13 and CDC - 10/08/13.

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New article on reporting side effects of supplements
Just published in The New England Journal of Medicine: A recent article brings up dietary supplement issues you need to be aware of and discusses how dietary supplement side effects could be monitored better. A PDF of the April 3rd article is available free online.

3rd International Congress on Soldiers’ Physical Performance
August 18-21, 2014
The ICSPP delivers innovative scientific programming on soldiers’ physical performance with experts from around the world.

DMAA list updated for April 2014

Fueling Performance Photo Campaign
Share photos of how you fuel your performance and be featured on our Facebook page!

Dietary supplement module
Earn continuing education credits (if eligible) for this two-hour online module.

Operation LiveWell

Performance Triad


HPRC's human performance optimization (HPO) website is for U.S. Warfighters, their families, and those in the field of HPO who support them. The goal is Total Force Fitness: Warfighters optimized to carry out their mission as safely and effectively as possible.


What are some hidden sources of caffeine?

OPSS Answer

Caffeine is a naturally occurring substance found in parts of many plants, including tea leaves, coffee beans, and others. The caffeine in plants (referred to simply as “caffeine” or “natural caffeine”) can be extracted for use in foods, beverages, and dietary supplements. Caffeine can also be made in a laboratory (synthesized) and used for the same purposes.

You probably know that caffeine is found in many colas, coffee, teas (black, green, oolong and white), and chocolate, but caffeine is also present in some over-the-counter drugs and dietary supplement products. Energy drinks contain caffeine, and some also contain guarana, a plant with high amounts of caffeine. Yerba mate, green tea extract, cacao beans, and kola/cola nuts are sources of caffeine often found in weight-loss and performance-enhancing dietary supplements. Be sure to read labels for hidden sources of caffeine.

For more about caffeine, see the OPSS FAQ about caffeine and caffeine anhydrous. And for information about caffeine in dietary supplements, please visit our FAQ “How much caffeine is safe?

FAQ last reviewed 19 May 2014

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