A fake transformation. Similar to all those women in fashion/style magazines--they're all airbrushed and photoshopped. It's not real.
Reminds me of a story on an LA plastic surgeon--he and his wife competed in bodybuilding shows, etc. I thought, wow, his wife's transformation is impressive and he is in great shape.
The only problem was that both had had massive amounts of plastic surgery in order to look like that. I can't believe they were even allowed to compete in BB shows.