Hypnotherapy for a problem

Does Hypnosis Work for Weight Loss?

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The research suggests hypnosis can help with weight loss, especially when it is combined with cognitive behavioral therapy (CBT) and the benefits are measured over time, but the quality of that research is mixed and individual trials can be disappointing. A 2024 overview of meta-analyses in Frontiers in Psychology brings much of it together, and it supports using hypnosis as part of a behavioral weight program, not as a replacement for one.

What does the research summary show?

The overview, by Rosendahl and colleagues, gathered 49 meta-analyses on hypnosis across health problems. Two of them focused on obesity, and their findings were:

  • Compared with usual care, attention control or no treatment, hypnosis produced significant, large effects on weight loss at the end of treatment and at follow-up.
  • Compared with CBT alone, adding hypnosis to CBT made a very small difference at the end of treatment, but the difference grew to a significant, large effect at follow-up.

The second finding is the more interesting one: the added value of hypnosis appeared at follow-up rather than at the end of treatment.

What are the limits?

Three, and they matter.

Quality. Across all 49 meta-analyses in the overview, only nine were rated as having high methodological quality. The obesity findings rest on two reviews, and a summary of a summary cannot fix weaknesses in the original studies.

Mixed trials. Not every study finds a benefit. A 2022 randomized pilot trial in PeerJ found that three weeks of listening to a self-hypnosis recording did not lead to significantly more weight loss than a placebo recording, though the authors note the pilot study was underpowered.

No single technique. The studies used different approaches, from hypnosis alone to hypnosis with self-hypnosis training to hypnosis combined with CBT, so “hypnosis for weight loss” is not one standard treatment.

What does a sensible program look like?

One built around eating and activity changes, with hypnosis added for the parts that are about habits, cues and follow-through:

  • Identify your eating cues: times, places, moods and foods that tend to trigger eating you would rather avoid.
  • Make if-then plans for each: “If I get home hungry and tired, then I will eat the prepared snack before cooking.”
  • Rehearse those plans in hypnosis or self-hypnosis, so the planned response is familiar when the cue arrives.
  • Keep practicing after formal sessions end, since the research suggests that is when added benefits from hypnosis may show.

Who should get medical advice first?

Anyone with a history of an eating disorder, anyone with medical conditions affected by weight or by diet changes, and anyone considering weight-loss medication or surgery. The NHS guidance on eating disorders notes that with treatment most people can recover.

Hypnosis as an add-on to a plan you can keep

Choose a weight-management plan you can sustain, with professional support if you need it, and add hypnosis or self-hypnosis to strengthen the habits that plan depends on. Judge it by your weight, waist and eating patterns at three, six and twelve months, not by the first few weeks, and walk away from anyone who promises a fixed number of pounds.

This article is general information, not medical or psychological advice; talk with a licensed clinician about your own situation.

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