No their body is completely ruined, and at that point there's no going back. Even with bariatric surgery, having that lymphedema all skin rcut off, and then skin removal surgery, you're just (literally) cutting off the superficial damage. The real damage thats been done to her liver and heart and kidneys, her intestinal tract, and the neural pathways in her brain that have been changed epigenetically is very likely too bad to recover from. That's why doctors dont want to work on obese patients, they're so badly fucked up internally that their body can't handle the stress of surgery and have a mortality risk hundreds of times higher than normal humans.