Frequently Asked Questions General Health Issues Would coffee or caffeine-containing soft drinks (one to two cups of coffee) interfere with any of the Vital Produx nutritional supplements? Yes. Caffeine interferes with enzyme activity, may have a negative affect on the immune system, and could contribute to the generation of free radicals in the body. Caffeine also could raise cortisol levels. Cortisol is the hormone which interferes with the process of building healthy lean body tissue. Home | Product Line | Endorsements | FAQs | Research | Order Products VITAL PRODUX™ 44 Mine Rd. Suite 2, PMB 209 Stafford, Virginia  22554  USA 540-286-2400 – FAX: 540-752-4765 E-mail: info@VitalProdux.com Copyright © 1996-2003, VTI, Inc. All Rights Reserved. Text, graphics, and HTML code are protected by US and International Copyright Laws, and may not be copied, reprinted, published, translated, hosted, or otherwise distributed by any means without explicit permission. Vital Produx™ is a trademark of VTI, Inc. Other trademarks are the property of their respective owners.