My drink of choice (necessity) is Cytosport Inc. Cytomax. You can find it here:<br><br>http://www.rei.com/online/store/ProductDisplay?productId=4933&storeId=8000&catalogId=40000008000&langId=-1<br><br>Now it tastes nasty but it works. I find I can push myself longer and further while drinking it constantly through out the exercise. I didn't know it when I bought the drink (for some reason they don’t advertise it) but it also reduces your oxygen amount consumption. Since I climb in high altitudes for me it's an added benefit. Plus after speed runs I'm not really that tired and my body recovers much faster. It does great job for killing taste of iodine in the water but the taste of the drink itself is really not the best (in comparison to Getorade) <br><br>Matt<br>