I sweat a lot. It leeches salt from my body. When I started riding 5 days a week I found myself getting very wobbly by Thursday/Friday.

I started dumping a couple of packets of supplemental salt into my lunch every day, and that went away.

I'm also one who doesn't fluctuate much. My body likes to be about 180. I started running and then riding when I hit 198, but it took 5 solid years of sitting on my butt eating junk to get from 180 to 198. I drew the line at 200.

I actually dropped some weight about a year ago, but the only way I was able to do it was by fasting, riding 25 miles a day and only eating one meal after I got home. I got down to 160 in 7 weeks but a series of illnesses and a lot of stress at work put me right back to 180 over the course of about 5 months, but it stopped there.