Hi Mark,
Congrats on reaching your goal. I like your sign-on name, I take it that MountainBikeMark. Yes, I agree the low carb way of life does work, I just bump up the intake as needed. I can't believe how many carbs I ate each day prior to low carbing. A good estimate would be about 250 a day.
Good luck on your training for the Ironman! I bet you're a sprinter! I know how you mountain bikers are! Crazier than us ultra-runners. Take Care, Maureen

P.S. I'm outta here for the weekend, a nice slow 50K south of Yosemite. Life is good!