Do we really need energy drinks for running?

Yes, you should start setting them out maybe every 5 or so miles on your long runs, and get used to them during a marathon. You may not need it for your current runs, but in a 26 mile race, you need it to be at your best. (For evidence, I watched the LA Marathon yesterday morning, and all of the top Kenyans picked up a drink at least every 5 miles!) Right on about what jrjo said about electrolyte replacement

Thanks for the replies.

The funny thing is that i did a 12 mile run last night and was happy just to drink water - BUT - i do completely understand the importance of energy drinks etc - i guess the best thing to do is practice with them and see how it improves my performance.

Thanks for all your answers!