Posted: 24/01/2015 at 21:45
Last year I had 8 HIgh5 caffeine gels in one water bottle, topped up with water (240mg caffeine, 184g carbs) and isotonic drink in the other. I swapped the iso drink bottle at each station, the one with gels in, I drank in stages (25, 50, 70, 90 miles approx.) so had a 60mg shot every hour and a bit. Flat coke for the run, plus a couple more caffeine gels near the end. Seemed to do the job quite well.