I picked up some e-Gel at the fitness expo before my first marathon. I hadn’t seen the product before and I was taking a chance using the first time during a race, but it worked well. I have been using it ever since in marathons and triathlons and have never had a problem with nausea, having it sit in my stomach like a brick and hinder the absorption of water like some other products I have used. Plus it went down easy. This spring I qualified for the Boston Marathon using e-Gel!