<<Disclaimer: Verify this information before applying it to your situation.>> I previously posted a question regarding Alacer Second Wind Runner Tablets. I had several responses expressing an interest but no one responded who was familiar with the product. Another mentioned that "MotherNature.com has an "Energy/Sports Formula that is GF" The company's name is "Alacer" and can be reached at 1-800-854-0249. The product is "Second Wind Replenishing Nutrients, Anti-Fatigue Runner Tablets." I called the company this morning and spoke with a representative who stated that the product was gluten free and not contaminated. The tablets contains various vitamins and minerals, including zinc, vitamins A, C and E, among others. It is used to increase metabolism and is taken in the morning. It is used mostly by runners. I plan to use it for kickboxing. If you are interested, I encourage you to call the company and find out as much as you can for yourself so you can make an educated decision if this product is for you. Regards, Heather Oklahoma City, OK USA