Let start by saying I have lost seventy five pounds. Had been eathing lousy for a lot of years, then started riding and trying to learn about eating right so I could loose and keep it off. I am fifteen pounds below my goal now and my bride has been telling me I dont eat enough. I now love riding! My meal before riding was 250 - 300 calories of fruit and yogurt. Then during ride 90 more calories in a energy bar. Rides are 90 to 180 minutes average. This past week I had problems riding on three different rides. After working out, I got on my bike and rode about twenty miles each time. Its been windy but I actually enjoyed the challange of the hard kick an my into the wind leg. Problem was I started to get cramps about half way home. Not to bad but it also came with feeling cold, and light headed for hours after. Actually not feeling right until after dinner. My bride being a practioner in the Medical field says to me yesterday during a easy thirty one mile ride with a stop at the farmers market in he middle says "Your blood sugar is dropping to low". What? "You should know you are not eating enough protien" Why should I know that! Wasnt born knowing that and never learned it eating double cheese bergers either. Well, today I work out hard, get on the bike and kick it hard for two hours. Half of which was into twenty five mph wind, and on the return leg I had cranked it up to twenty seventh and gear spun that out going down wind. It felt awesome. When I got back I felt great! I had doubled my protien during the day plus additional calories during the ride. Today 500 calories of protine before, then the energy bar during. I may gain back a few pounds but I am thrilled to feel good after riding.