Are these products proven to work or is it the power of the mind that really aids you to run faster, longer or stronger.
Well insofar as sports supplements do contain active ingredients they're not homeopathic remedies or anything! I think the key point people usually make is that most are essentially unnecessary, in that you can get the job done (fuelling, hydration, protein for recovery, etc.) with normal food, drink, etc. but they do get the job done, and people are willing to pay for the convenience, e.g. of carrying gels during a race.
I'll be trying my new baggage-free fuel strategy for my next marathon. I think I've worked out that good running prep, a good taper and a good carb load is enough to fuel me through 26.2 miles, and I'll be topping up on water and the odd sugary drink provided on the course as I see fit.
Edited: 03/10/2012 at 14:06