IBS — and how nutrition actually helps.

Irritable bowel syndrome (IBS) is highly nutrition-responsive. A dietitian-led approach is one of the most evidence-based treatments — and it ends with more food in your diet, not less.

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Written & reviewed by Leila Page, RD — Registered DietitianLast updated June 2026

IBS is a common functional gut disorder that causes bloating, cramping and changes in bowel habits. Nutrition is one of the most evidence-based ways to manage IBS — including structured approaches like low-FODMAP and individualized food-sensitivity work. A registered dietitian can guide you through it. Results vary. Nutrition counseling is not a substitute for medical care.

Ready to work on this together? Structured, dietitian-led IBS care that ends with a wider — not narrower — diet. Gut Health & IBS

Common signs & symptoms

How IBS actually shows up day to day.

Symptoms vary — IBS-D, IBS-C and IBS-M can all share these patterns. See a GI physician for diagnosis.

  • Bloating or abdominal distention, often worse later in the day.
  • Crampy abdominal pain that frequently eases after a bowel movement.
  • Diarrhea, constipation, or both alternating.
  • Urgency or a sense of incomplete evacuation.
  • Symptoms tied to specific meals, stress or hormonal cycles.
  • Excessive gas or flatulence.
How a nutrition approach helps

What evidence-based IBS nutrition actually does.

We start with a careful intake — symptom patterns, current diet, what’s already been tried — so we don’t repeat work that didn’t help.

Where appropriate, we use a structured low-FODMAP elimination and reintroduction protocol. Reintroduction is the whole point — we end with a wider, more varied diet than we started with.

If IBS overlaps with inflammation or specific food reactions, MRT food-sensitivity testing may help personalize the plan.

What we don’t do: hand you a long ‘avoid these forever’ list. We use restriction strategically, then carefully widen the diet back out.

Nutrition counseling is not a substitute for medical care. Individual results vary.

The IBS evidence base

What the research shows about diet and IBS.

A few well-established facts from authoritative sources — context for the work, not a substitute for personalized care.

IBS affects an estimated 10–15% of adults globally, making it one of the most common functional GI disorders.
Source: American College of Gastroenterology — IBS overview
Research from Monash University — where the low-FODMAP diet was developed — shows roughly 3 in 4 people with IBS experience meaningful symptom relief on a properly executed low-FODMAP protocol.
Source: Monash University FODMAP program
The American Gastroenterological Association recommends a dietitian-led low-FODMAP protocol — including a structured reintroduction phase — as first-line dietary therapy for IBS.
Source: AGA Clinical Practice Update on IBS
When to seek care

When IBS needs a GI physician on the team.

Work with a GI physician for diagnosis and to rule out conditions like IBD, celiac disease or SIBO. Sudden weight changes, blood in stool, severe abdominal pain or symptoms that wake you at night warrant medical workup. Nutrition counseling supports your medical care.

5.0 on Google
I started working with Leila after my first son was born, around the same time I was diagnosed with arthritis. Instead of handing me a generic diet, she dug into what was actually driving my inflammation, including a food sensitivity test that pinpointed my triggers and built a plan around it. I felt dramatically better within weeks. Thoughtful, knowledgeable, and truly invested in her clients. Highly recommend.
Danielle Montijo
As a woman in mid 40's discovering I was in perimenopause, I was struggling with symptoms such as changes to my sleep (wide awake at 3am every single day- so dumb), mood swings, anxiety, fatigue, brain fog, and hot flashes. Leila really listened to my struggles and introduced me to an anti-inflammatory diet with nutrient dense options and she gently introduced me to hormonal educational resources. She completed an Inbody Body Composition Scan (which took less than a minute) and it showed me all the results from my body weight and broke it into specific components: muscle mass, body fat, and hydration levels. She is the best at one-on-one coaching and nutritional mapping! I would recommend her in a heartbeat to anyone and everyone looking for an empathetic and educated Registered Dietician Nutritionist!
Santina Peterson
FAQ

IBS (Irritable Bowel Syndrome) — common questions

What is IBS, and what causes it?

IBS (irritable bowel syndrome) is a functional gut disorder — meaning the gut isn’t damaged the way it is in inflammatory bowel disease, but it functions differently. Causes are multifactorial and can include gut-brain axis sensitivity, motility differences, microbiome composition, prior infections and food responses. A GI physician makes the diagnosis.

What’s the best diet for IBS?

There isn’t one universal diet for IBS. For many people, a structured low-FODMAP protocol followed by careful reintroduction works well. Others do better with fiber adjustments, meal timing or specific trigger work. The best diet is the one personalized to your symptoms and history.

Is low-FODMAP a forever diet?

No — and it shouldn’t be. Low-FODMAP is a three-phase, temporary protocol: elimination, reintroduction and personalization. Long-term, indefinite low-FODMAP eating risks nutrient gaps and reduced microbiome diversity without added symptom benefit.

Can IBS be cured?

IBS is generally considered a chronic, long-term condition rather than something that is ‘cured.’ But symptoms can often be significantly reduced — sometimes to the point of barely impacting daily life — with a combination of nutrition, lifestyle changes and (where appropriate) medical care.

How is IBS diagnosed?

IBS is diagnosed by a physician — typically a primary-care doctor or GI — based on symptom patterns (often using Rome criteria), and by ruling out other conditions like celiac disease, IBD or infection. Nutrition counseling supports the management plan once a diagnosis is established.

Working through IBS yourself?

Book a free 15-minute discovery call. No paperwork, no PHI required.

or call (949) 736-4147
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You don't have to manage this alone.

Book a free 15-minute discovery call — no pressure, no PHI required — and we'll talk through where nutrition fits for you.

Call (949) 736-4147

Free 15 minutesno card requiredno PHI required.