The Kelly in '600 lb life kelly's story' is a person whose journey we are following. She has a weight of around 600 lbs, which means she has a lot of challenges to face. Her story may include how she got to this weight, what her living conditions are like, and what she is doing to try and change her situation. It could also cover her emotional state, as living with such a high weight can be very difficult both physically and mentally.
Kelly is the main character in this story. She is likely a person who has a weight problem, specifically weighing around 600 lbs, and the story probably focuses on her life experiences related to her weight.
Kelly in '600 lb life kelly's story' is the individual whose life is being chronicled. She is someone who is dealing with obesity at a significant level of 600 lbs. The story might detail her daily struggles, her relationships which could be affected by her weight, and her attempts at making changes in her life to improve her health and well - being.