IBS Not Improving? Why Nothing Seems to Work Even When You Are Trying Everything
You know your way around a low FODMAP app better than your own phone settings, you have a cupboard full of probiotics, and you can spot hidden garlic on an ingredients label from across the supermarket. Yet somehow, after all that effort, your IBS still turns up uninvited, whether that is before a meeting, halfway through a walk, or on the one evening you were looking forward to.
If your IBS is not improving even though you are trying everything, it is easy to feel like you are doing something wrong. In most cases, you are not. It usually means the approach so far has focused on managing symptoms rather than understanding what is driving them.
What it means when IBS is not improving
IBS is a description of symptoms rather than an explanation of why they are happening. Two people with the same diagnosis can have completely different things going on underneath, which is why one person’s success story can do nothing for someone else.
When IBS stays stuck, it is often a sign that one or more underlying factors have not yet been identified, so the changes you are making are aimed at the wrong target.
Common symptoms that often travel with stubborn IBS
Bloating that builds through the day, often worse by the evening
Bowels that swing between constipation and loose stools
Urgency first thing in the morning or soon after eating
Cramping or pain that eases after going to the toilet
A growing list of “safe” foods that keeps getting shorter
Fatigue, brain fog or low mood alongside your gut symptoms
Symptoms that seem worse around your period or since perimenopause
The root causes of IBS that are often missed
IBS is rarely about one food. More often, it is linked to how your whole digestive system is working.
Your gut bacteria may be out of balance. An imbalance in your gut bacteria, or bacteria growing in the small intestine where they should not be (known as SIBO), can produce excess gas, bloating and changes in your bowels. SIBO is often found in people with IBS that has not responded to diet changes.
Your digestion may not be breaking food down well. Low stomach acid, sluggish bile flow or low digestive enzymes can mean food reaches the bowel only partly digested, where it ferments and causes discomfort.
Your nervous system may be stuck on high alert. Your gut and brain are in constant conversation. Ongoing stress can make the gut more sensitive, so normal amounts of gas or movement feel painful and urgent.
Restriction may have gone on too long. Low FODMAP is designed as a short-term tool. Staying on it for months can reduce the variety of bacteria in your gut, which can make symptoms more stubborn rather than less.
Hormones can play a part. Changing levels of oestrogen and progesterone affect how quickly the gut moves, which is why IBS often shifts around your cycle and can become harder to manage in perimenopause.
Nutrient gaps can hold healing back. Low levels of nutrients such as magnesium, zinc and vitamin D can affect your gut lining, motility and how well your body copes with inflammation.
The usual GP approach to IBS
Your GP is a really important first step. They can rule out conditions such as coeliac disease and inflammatory bowel disease, and they may offer a low FODMAP leaflet, antispasmodics, peppermint oil, laxatives or anti-diarrhoea medication.
These can help many people, but if you have been given a leaflet and sent on your way, it can feel as though you have been left to work the rest out alone. That is not a failing on your part or your GP’s. Appointments are short, and there often is not time to explore why your gut is reacting the way it is.
If you notice blood in your stools, unexplained weight loss, a persistent change in your bowel habits or symptoms that wake you at night, please see your GP first.
How I work with IBS as an IBS Nutritionist
What I look at
I start with your whole story, not only your gut. We look at when your symptoms began, what your bowels are doing, your food diary, stress, sleep, energy and hormones. Patterns often appear that have been hiding in plain sight.
What I might test
Where it is useful, a comprehensive stool test can show how well you are digesting food, the balance of your gut bacteria and any signs of inflammation. A SIBO breath test can be helpful if bloating comes on soon after eating. I will only suggest testing when it is likely to change what we do.
What I support
Together we support your digestion, rebuild the variety of foods you can enjoy, calm your nervous system around meals, and use targeted supplements where they are needed. The aim is a gut that feels more resilient, not a diet that keeps getting smaller.
Simple steps to help when your IBS is not improving
Keep a two-week food and symptom diary, including stress, sleep and your cycle if relevant. Patterns are often easier to see on paper.
Sit down to eat, take a few slow breaths first and chew each mouthful well, so your digestion has the best possible start.
If you have been low FODMAP for months, work on carefully reintroducing foods rather than staying restricted.
Add a short walk after meals to help keep things moving.
Look at your evening routine, as poor sleep can make the gut more sensitive the next day.
A gentle meal idea for a sensitive gut
This salmon and rice bowl is calming, filling and kind to an irritable gut. Salmon provides easy-to-digest protein along with omega 3 fats, which help calm inflammation. Rice is gentle and low FODMAP, so it gives you steady energy without adding to bloating. Carrots and courgette are soft, well-tolerated vegetables that add fibre without the gas some vegetables can cause. Fresh ginger helps your stomach empty and can ease nausea and discomfort, while the green parts of spring onion give you flavour without the fermentable fibres found in the white bulb. A sprinkle of pumpkin seeds adds magnesium, which supports regular bowel movements and helps your muscles relax.
1 salmon fillet
60g rice, cooked
1 carrot, sliced
½ courgette, sliced
A small piece of fresh ginger, grated
Green parts of 1 spring onion, sliced
1 tbsp extra virgin olive oil
1 tbsp pumpkin seeds
Bake the salmon at 200°C for 12 to 15 minutes. Gently steam or sauté the carrot and courgette with the ginger in the olive oil until soft. Serve over the rice and top with the spring onion greens and pumpkin seeds.
If your IBS is not improving after everything you have tried, please know that this is not your fault. IBS is complicated, and the standard advice was never designed to look at the whole picture. With the right support and a clearer understanding of what is driving your symptoms, it is possible to feel calmer, more confident and far less ruled by your gut.
If you have been living with IBS for months or even years, I would love to help. My Calmer Digestion Programme is a three-month, one-to-one programme of support for gut health, IBS and reflux, built entirely around you. You can also read more about my IBS support. If you are not sure where to start, book a free 20-minute discovery call and we can talk through what is going on and whether working together feels right for you.
About Lisa
Lisa Claire Dack is a Registered Nutritional Therapist (mANP, rGNC) and Accredited Reflux Practitioner, specialising in gut health, IBS and reflux. She has lived with IBS herself and supports clients online across the UK to understand what is driving their symptoms and feel like themselves again.
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