fishdr- Karl explains the physiology in the article. The nausea article is great too.

What I think is weird is I have three identical races three years in a row and the only thing that I changed was at the last one, taking electrolytes every 30 minutes without fail because of the timer, instead of just trying to watch my watch. I didn't even find the tiny blister until days later. Other years, my toenails would be black (actually pre-black pinkish purple) as soon as I took my shoes off, with blister juice coming out from under them at both ends, with huge blisters on my big toes and under my other toes.

I think when I ride the 200k July 1st, I'm going to put that watch somewhere on my bike with the alarm set.

BF hated the salmon. I guess it was too far removed from beef or chicken. I liked it, though.