This is a very interesting discussion. The same thing happens to me. I had a major bonk yesterday on a ride. It has happened to me before, but not in ages. I felt so terrible, I just wanted them to leave me on the trail. It took every ounce of focus that I had to get through the last few miles.

After reading this, I came home and looked at the calories in my sports drink...total ingested 200. One gel 100. So I consumed 300 calories on a three hour ride. And it was the first warm day we have had in months. And it was a long week of training.

So if what you all, and the article are saying is true, I would need about 250 calories an hour. I am not getting nearly enough on the bike. And I wonder why my recovery is slow!!!

This has really helped me. Thanks to all of you.