Satur-8 Rush for Endurance? Input please!

I'm not very familiar with Satur8, but what I've seen is that it's more for weightlifting than cycling. It definitely has nothing to do with EPO or the production of red blood cells. It's basically a mix of amino acids, some caffeine, lots of electrolytes, and a formulation of creatine I'm not familiar with. As for the "cell volumizers" I have no idea. Creatine is helpful with short bursts of energy (20-60 seconds) so again would be more beneficial for weightlifters. Over the course of a long ride your fuel is primarily muscle glycogen and the products of fat metabolism. The caffeine can adversely affect your heart rate (especially is you don't normally use it) and can cause dehydration. Interestingly one of the electrolytes is a potent laxative which might be a consideration during a long ride as well. As for appropriate protein intake, a generally accepted number is 0.8 -1 grams of protein per kilogram of body weight per day. For a a good-sized male were talking about 70-80 grams of protein per day. There's no need to exceed 1.5 grams/kilogram/day. I hope that helps.