If your IBS patient says food is their main trigger, should you still refer gut-directed hypnotherapy?

Do food-trigger patients with IBS respond differently to GDH than stress-trigger patients?

Food-triggered IBS did not emerge as a distinct treatment subgroup. Our new data sorted 26,008 users by their reported primary trigger (food only, stress only, or both), then compared engagement and six-week outcomes.¹ 

The food-only and stress-only groups differed by less than 0.5 percentage points on improvement and 0.01 sessions per week on engagement.

The dual-trigger group improved just slightly more.¹ 

Trigger attribution is often where an IBS consultation begins for clinicians, but here it told us nothing about who would respond: food-trigger and stress-trigger patients did equally well.

Where does gut-directed hypnotherapy fit in IBS care?

Because trigger type did not predict response, gut-directed hypnotherapy works as a low-risk, non-dietary option alongside whatever care a patient is already receiving, including those with identified food-related symptoms. 

Additionally, an earlier Monash randomized trial found GDH was comparable to a low FODMAP diet for symptom improvement, sustained at six months. So, there is substantial evidence, GDH can be utilized as as an alternative to dietary changes, not only an add-on to it.² 

Here are three situations where it earns a place:

• Incomplete response to first-line care: a second option that preserves existing work rather than adding more restriction.

• Increasingly restricted eating: a non-dietary pathway that may support nutritional adequacy without narrowing intake further.

• Stalled food reintroduction: when food-related anxiety limits tolerance testing, easing symptom amplification may let a patient progress.

So, this research indicates your patients who are most likely to assume GDH is not for them are just as likely to benefit from it.

Should gut-directed hypnotherapy come before or after other treatment?

Gut-directed hypnotherapy can be offered before, after, or alongside other IBS treatments, as the AGW 2026 data showed no ordering advantage.¹ 

There is no reason to treat it as a last resort. The right timing is individual: it might suit one patient mid-reintroduction, another with progressive restriction, and another whose first-line treatment fell short.

Who else gets ruled out of gut-directed hypnotherapy?

Food-trigger patients are not the only group written off too soon. 

Of the three real-world studies the Nerva team presented at AGW 2026, one found baseline anxiety and depression did not predict abdominal pain response across 76,138 users.³ 

Another found older adults engaged with digital GDH as well as younger patients, across 131,900 users.⁴ 

In other words, none of the usual reasons to hold a GDH referral back, whether anxiety, low mood, or older age, held up against what the evidence actually found.

How clinicians combine GDH with other IBS care

Gut-directed hypnotherapy fits anywhere in the referral pathway: first line, alongside diet or medication, or after other approaches. 

These four clinician case studies show what that looks like in practice, including patients who were already under dietary management when gut-brain therapy was introduced:

• Managing an IBS-M adolescent with a nutrition-first, multimodal approach: Nutrition care leads, with GDH layered in as part of a multimodal plan for a younger patient.

• Targeting nervous system dysregulation: What to do when symptoms track nervous system arousal more than intake.

• A multimodal strategy for IBS: Dietary and gut-brain therapy running together rather than in sequence.

• Resolving IBS symptoms through gut-brain therapy: A patient whose symptoms responded once gut-brain therapy was added.
  

Watch: Managing IBS in your clinic

Watch gastroenterologist Dr. Omar Khokhar from OSF Healthcare chat all things gut health and how to drive patient outcomes in clinic. With the gut-brain axis now well established as a two-way street, Dr. Khokhar walks through the science of visceral hypersensitivity, how the gut microbiome influences appetite, sleep, mood and athletic performance, and the practical menu of options he reaches for when treating patients with IBS and other disorders of gut-brain interaction

Adding Nerva to your referral pathway

You can refer patients to Nerva through the online referral form. Referred patients complete intake and onboarding, and you can see their week 1 and week 6 IBS-SSS scores, so there is objective data to review at follow-up rather than relying on recall. Bookmark the referral form

Frequently asked questions

Does gut-directed hypnotherapy involve any dietary restriction?

Gut-directed hypnotherapy involves no dietary change, targeting gut-brain signaling and symptom amplification rather than intake. For patients already on a restricted diet, it adds no further nutritional risk.

Can a patient start gut-directed hypnotherapy during FODMAP reintroduction?

Gut-directed hypnotherapy can run during reintroduction and is often most useful when food-related anxiety limits challenge tolerance. Doing both at once complicates attribution, so agree upfront on what the challenge phase should clarify.

Is gut-directed hypnotherapy recommended in IBS guidelines?

Gut-directed psychotherapies are recommended for global IBS symptoms in the 2021 ACG clinical guidelines, which frames them as evidence-based care, not a final resort.⁵ Digital delivery extends the option to patients without access to a local therapist.

How long does a course of Nerva gut-directed hypnotherapy take?

Nerva is a six-week digital gut-brain therapy program with daily 15–20 minute sessions, and patients have access to the program for 12 months for maintenance. Setting that six-week expectation at referral is one of the strongest predictors of program completion.

References

1. Dabash O, Hall C, Peters SL, Raik-Allen S. No difference in adherence or clinical response to a digital brain-gut behavioural therapy program among 26,008 users reporting food-related or stress-related primary symptom triggers. Abstract presented at: Australian Gastroenterology Week 2026; August 28–31, 2026; Perth, Australia.

2. Peters SL, Yao CK, Philpott H, Yelland GW, Muir JG, Gibson PR. Randomised clinical trial: the efficacy of gut-directed hypnotherapy is similar to that of the low FODMAP diet for the treatment of irritable bowel syndrome. Aliment Pharmacol Ther. 2016;44(5):447-459.

3. Hall C, Dabash O, Peters SL. Baseline psychological comorbidity does not influence abdominal pain response to digital gut-directed hypnotherapy: real-world analysis of 76,138 users with irritable bowel syndrome. Abstract presented at: Australian Gastroenterology Week 2026; August 28–31, 2026; Perth, Australia.

4. Hall C, Dabash O, Peters SL. Older adults with irritable bowel syndrome demonstrate higher engagement and improved abdominal pain outcomes with digital gut-directed hypnotherapy: real-world analysis of 131,900 enrolled users. Abstract presented at: Australian Gastroenterology Week 2026; August 28–31, 2026; Perth, Australia.

5. Lacy BE, Pimentel M, Brenner DM, Chey WD, Keefer LA, Long MD, Moshiree B. ACG clinical guideline: management of irritable bowel syndrome. Am J Gastroenterol. 2021;116(1):17-44.