I responded to someone in a thread a week or so back with regards to Nuun Hydration tablets. I wanted to give this report. I now have tried them on several long rides. 1/2 strength (cut the tablet in half) is what works for me. At full strength the taste was a little upsetting but at 1/2 strength it is just right. I found that hydration was much better, I actually drank more than normal without feeling bloated (I kept straight water in my hydration pack and Nuun in one bottle). My muscles were less stiff towards the end of a 50 mile ride and my output was more consistent through out the latter 1/2 of the ride. I just ordered more as I think I will use it through out the summer. Oh - and the tell tail sign, at the end of the ride my urine was clear - not dark, maybe that was Too Much Information. Of course the weather has not turned hot - but I can tell things are better now.