WHITFIELD: Training for a triathlon is no easy task, and getting to the finish line requires months of dedication and hard work. For Fit Nation participant Annette Miller training had been a triumph. Miller has lost a whopping 146 pounds in just 14 months, and CNN's Dr. Sanjay Gupta tracks her training.</s>DR. SANJAY GUPTA, CNN CHIEF MEDICAL CORRESPONDENT: Just two months ago we set our six Fit Nation participants loose on their journey to become triathlete. One of them I will point out, Annette Miller, she started her journey earlier. In January of 2012 she weighed 385 pounds, but by the time she applied for our program she had already lost more than 100. Now it is 146 pounds off the scale. Last week I saw her in Nashville.</s>ANNETTE MILLER, FIT NATION PARTICIPANT: When it comes to working out, you only get out of it what you put into it. I can remember not being able to maintain for 30 minutes. And I can run for two hours now, or when I am doing the spin classy still have steam left at the end of an hour. So it feels good to just keep building on that. I can do a little bit more today than I did yesterday.</s>GUPTA: And there is more to the story than that. Annette also inspired her own sister who was considering gastric bypass surgery but had a change of heart when she saw Annette's progress.</s>MILLER: About a month ago she just told me, she goes, you know, I have been watching you and seen how you have done this and changed your life and I have seen your attitude change, and I'm going to try without the surgery first she said, because you have done it. I think I can at least try.</s>GUPTA: That's a great story. That's what this is all about. And we're going to keep checking in with Annette and her sister. And Annette, I will see you at the Nautica Malibu triathlon hopefully at the finish line in September.</s>WHITFIELD: Best to all of them. Technology and fashion collide at the South by Southwest festival. We'll show you how next.
Woman Loses over 100 Pounds