(Trying not to be too blunt) but quit with the low carb non-sense. Get on a real diet and real fitness plan. I agree, with Primevci; consult a doctor and dietician who specialize in sports. Also, read a book called Bicycling Medicine, by Arnie Baker. The book lays down the real science behind excersize and diet, specifically as it related to cycling. I wont argue that you can't loose weight on the Atkins diet, and I think it's good what you've done so far. However, from here on out, your weight is not as important as your general health. A better diet plan would be the old tried and true calorie resticted diet instead of a carb restricted diet. Just me 2 cents, as always. Good luck whatever you do.