Somebody gave me some chocolate-coated beans at the last checkpoint in Robin Hood's Bay on the Frostbite 50 in January, and they did supply a bit of a 'lift' after we'd done 44 miles with just 6 to go. However, I think alternating gels with something solid, like flapjack for instance, accompanied by electrolyte (I use nuun or zero tablets - 1 to 500ml water) is more sustaining over a long distance. You have to be careful you don't eat too much solid stuff because your stomach can't digest it quickly enough and goes into spasm. I found this article quite useful:Originally Posted by stevefoster
http://blogs.cybersym.com/ultrarunning-biochem.html
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