CNN CNN Saturday Morning September 14, 2013 14:53:00
>> reporter: so she changed her diet, started walking. she hit the gym. she was determined to get the weight off. by november 2012, she was well on her way. >> i'm proud to say at this point i've lost over 100 pounds. >> reporter: and she wasn't finished. >> a little 10-year-old kid in here that still wants to play, wants to be a part of something, be a part of the team. >> reporter: miller applied for the cnn fit nation challenge, and she was accepted in january. congratulations. we've already picked -- for eight months, she trained -- swimming, biking, running -- to compete in the nautica ma...