Woman Claims Secret to 140-Pound Weight Loss Is Hypnosis

Julie Evans says she was hypnotized into only craving healthy foods.
2:10 | 08/21/14

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Transcript for Woman Claims Secret to 140-Pound Weight Loss Is Hypnosis
Next up in our "Heat index." Remarkable weight loss story. Lost 140 pounds and kept it off for years and she said she thought herself thin and juju Chang explains. Reporter: Is this the new weight loss secret? Tricking your mind into thinking you had gastric bypass? Imagine instantly craving healthy foods instead of junk. All I wanted was spinach. It was the craziest feeling in the whole wide world. Reporter: That's what happened to Julie Evans, the overwhelmed mom of two little ones who used to weigh 287 pounds. I was the biggest skeptic whatsoever. Reporter: There's reason to be skeptical because the 35-year-old says the trick to shedding 140 pounds was hypnosis. I haven't had fast food since. I don't even crave it. Reporter: But back in 2006 she ate fast food and junk food every day. It wasn't until a vacation to Hawaii that she realized she was too embarrassed to show her body. It was time for a change. I'm like, this is holding me back from living. Reporter: Her mom convinced her to try hypnosis. Skeptical Julie went to a seminar featuring Reena Greenberg. We have a lot of old patterns bombarding the mind and we're rewriting the script. Reporter: She says she has clients visualize pushing a plate away because you're no longer hungry and going to the game instead of bringing on cookies. Julie said it changed the way she ate after just one session. I would pause and think about what I'm putting inside of me. Reporter: Still, critics say it won't work for everyone. But it's not like you're saying hypnosis is a crock. Not at all. Reporter: But that you're not -- this is unproven. It's unproven and it doesn't work for all and the studies do show you have to believe it's going to work for it to work. Reporter: Now she's going to the gym for the first time in her life and listens to hypnosis cds when she feels she's getting off track and kept the weight off for years and to the skeptics she says, don't judge till you've tried it. I do think you have to have an open mind and you have to be willing to listen and be open-minded. Reporter: For "Good morning America," juju Chang, ABC news,

This transcript has been automatically generated and may not be 100% accurate.

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