I've suffered from severe leg muscle cramps since I was a kid. Last October (2011) while on a mountain biking trip to Moab, UT with my youngest son I stopped in at a well-stocked bike shop and noted they had a large display of vitamins, supplements, energy drinks, etc. I asked what they would recommend, if anything, for muscle cramps.
Three guys working there all came to where I was standing and recommended Sportslegs. Long story-short, I bought a bottle and now before I work out I take the recommended dosage. The impossible to believe news is that I have had only one minor leg cramp since October 4, 2011!!
This fall, if you suffer from leg or other muscle cramps after exerting a lot of energy, do yourselves a favor and order this product (I am NOT a company representative - I'm just a guy who found something that has changed my life and I want to share this with you). My workouts are harder, I can do more longer and I don't have excessive soreness the next morning...plus - NO CRAMPS!
http://www.sportlegs.com/about/welcome.asp