Earlier this year I started a thread regarding a book that I had read and was trying to follow. It was "The Paleo Diet for Athletes" by Loren Cordain. I was having trouble with my blood sugars and losing weight. Converting from eating a high amount of carbohydrates to very low amount was hard to do. It took me awhile to wean myself off of the carbohydrates. In fact, I quit the diet for awhile and did not give it a very good review.
Pecan pie did it for me though. I had eaten a piece of it one afternoon while at work and my two hour post-prandial blood sugar was 58. Talk about rebound hypoglycemia! I was cranky and pretty hard to work for. I gradually worked my way off of eating many carbohydrates and now my sole sources of carbohydrates are vegetables and fruit. I avoid potatoes, and anything else with a high glycemic index.
Starting a diet that severely changes how you eat is a difficult thing to do. As you decrease the amount of carbohydrates you eat you are miserable for awhile. I have to tell you though, as I have stuck with it, I feel good, my performance (for my level of cycling) has not suffered and is improving.
My blood sugars are in very good control and I have the energy I need to work and do the things I want to do.
So, here's to you Loren. I think you've got it figured out.
Check out this link for the science behind Cordain's work:
if you are familiar with my prior posts on this subject you already know I absolutely agree with you. A low carb diet is perfectly suitable for active cyclists - with the minor caveat that you might need some carbs added in if you are riding at a very high exertion level for a long stretches... maybe, that part I'm not sure about. But for anyone else, if you want to improve blood sugar, improve your lipd profile, feel great, lose weight, have energy to spare, yes it works.
and yes, a lot of people experience some difficulty as their body switches over from running on sugar to running on fat. It can take a few weeks even, but you will adapt and you will feel great.