BJC Health Blog

Calming the Gut: Evidence Based Nutrition for IBS

Written by Monica Kubizniak | Jun 18, 2026 6:48:03 AM

Gut symptoms can be unpredictable, often shifting from day to day and showing up in ways that don’t always follow a clear pattern. For many people, this can affect not just physical comfort, but also confidence, routines, and how freely they move through daily life. The good news is that there are practical, evidence-based ways to better understand what’s happening and take meaningful steps toward a calmer, more settled gut.

Understanding IBS: It’s Personal, and It’s Manageable

IBS can present in a range of ways. Some people notice bloating or abdominal discomfort, others experience changes in bowel habits, and for many, symptoms can shift across the day or week.

A helpful starting point is building awareness of your own patterns. Noticing when symptoms tend to show up, how they relate to meals or stress, and how long they have been present can guide the next steps. This personalised understanding becomes the foundation for making changes that are both effective and sustainable.

The Gut–Brain Connection

One of the most important concepts in IBS is the gut–brain axis. The gut and brain are in constant communication, and this relationship plays a significant role in how symptoms are experienced.

When stress levels are higher, the gut can become more sensitive. At the same time, when the gut feels unsettled, it can influence mood and overall wellbeing. Supporting both sides of this connection is an important part of calming symptoms.

This might include:

  • Improving sleep routines and sleep quality
  • Introducing regular, manageable movement
  • Exploring stress management strategies such as mindfulness or counselling
  • Creating space in the day for rest and recovery

Many people notice meaningful improvements when these areas are supported consistently.

Building Strong Foundations with Nutrition

Before moving into more structured dietary approaches, there is real value in strengthening everyday habits. Small, consistent changes can have a noticeable impact on how the gut feels.

This often includes:

  • Eating regular meals to support digestion
  • Being mindful of portion sizes
  • Eating slowly and allowing time for meals
  • Staying upright after eating
  • Reducing excess caffeine and alcohol

Fibre also plays an important role, particularly soluble fibre. Foods such as oats, chia seeds, and psyllium husk can support bowel consistency when introduced gradually and paired with good hydration. These small adjustments often form a strong base before exploring more targeted strategies.

Anti-Inflammatory Eating: Supporting the Whole Body

An anti-inflammatory approach to eating supports not only the gut, but also the brain, joints, and overall health. Including a variety of whole foods, fruits, vegetables, and healthy fats helps create a more balanced internal environment.

This way of eating provides a supportive foundation, allowing the body to function well while also preparing for any more specific dietary adjustments that may be needed.

When to Consider Low FODMAP

If symptoms continue despite strong lifestyle and nutrition foundations, the low FODMAP approach can be a helpful next step. It is one of the most well-researched strategies for managing IBS and is designed to identify individual food triggers.

FODMAPs are types of carbohydrates found in a wide range of everyday foods. While they are well tolerated by many people, some individuals find that certain FODMAPs contribute to their symptoms. The goal is not to remove these foods permanently, but to understand how your body responds to them.

How the Low FODMAP Process Works

The low FODMAP approach is a structured process that helps you learn more about your own tolerance levels.

It typically involves three key stages:

  • Elimination (2–4 weeks): reducing higher FODMAP foods to see if symptoms improve
  • Reintroduction: testing foods one group at a time to identify triggers
  • Personalisation: building a long-term approach based on your tolerance levels

Most people find they can reintroduce many foods, keeping only a small number of targeted adjustments.

Why Reintroduction Matters

Reintroduction is a key part of the process because many higher FODMAP foods are also rich in nutrients and support gut health, including the microbiome.

Rather than avoiding these foods completely, the goal is to:

  • Maintain as much variety as possible
  • Support gut bacteria and overall health
  • Find your individual tolerance levels

This helps create a way of eating that feels both flexible and sustainable.

Practical Tools That Can Help

The Monash University Low FODMAP app is a useful tool throughout this process. It provides clear guidance on food choices, portion sizes, and includes a way to track both food intake and symptoms.

Having this level of detail makes it easier to build confidence and make informed decisions as you go.

Navigating Common Challenges

Eating out and cooking at home can feel different when you are adjusting your diet, particularly during the early stages.

Choosing simpler meals when dining out, such as grilled protein with vegetables, can make decisions easier. At home, small swaps in familiar meals often go a long way, rather than needing to start from scratch.

With time, these adjustments become more intuitive, and many people find they can still enjoy a wide range of foods with a few thoughtful changes.

Supporting Your Gut Beyond Food

Nutrition is only one part of the picture. Daily habits and lifestyle choices also play a meaningful role in how the gut feels.

Supportive strategies may include:

  • Spending time outdoors and getting sunlight
  • Maintaining a consistent routine
  • Connecting with people you enjoy being around
  • Gentle movement and regular activity
  • Creating moments of calm in your day

Simple additions such as ginger, whether in tea or meals, can also be a soothing option for digestion and may help ease nausea and discomfort.

Bringing It All Together

Calming the gut is not about finding a single solution. It is about building a set of strategies that work together and support you over time.

For many people, this process unfolds in a clear and manageable way. It starts with understanding your symptoms and patterns, then strengthening lifestyle and nutrition foundations, and finally exploring more tailored approaches such as low FODMAP where appropriate.

What stands out in Monica’s approach is the focus on personalisation. Rather than removing foods long term, the aim is to understand your body, reintroduce as much as possible, and create a way of eating that feels both nourishing and realistic.

Over time, this can lead to:

  • More predictable and manageable symptoms
  • Greater confidence around food choices
  • A sense of control over your routine and social life

With the right guidance and a step-by-step approach, it becomes much easier to move forward with clarity. The end goal is not just symptom relief, but feeling comfortable, supported, and able to enjoy everyday life with fewer interruptions from your gut.

 

 

This article is based on Dietitian Monica Kubizniac's talk on Calming the Gut: Evidence Based Nutrition for IBS.  You can access the full session and hear their complete insights by watching the full talk here.