Why Your IBS Symptoms Aren’t Improving (And What You Might Be Missing)
I can’t tell you how many patients come in and say they’ve been diagnosed with IBS, but nothing they’ve tried has actually fixed the problem.
They’ve adjusted their diet, maybe tried some supplements, maybe even cut out entire food groups… and yet they’re still dealing with bloating, gas, constipation, diarrhea, or some combination of all of the above.
So what’s going on?
In my experience, a large percentage of people who have been labeled with IBS are actually dealing with something more specific. SIBO (small intestinal bacterial overgrowth) is often the culprit, but functional lab testing has also revealed many other contributing factors that can help explain the symptoms commonly labeled IBS.
IBS Is a Label, Not a Cause
IBS (Irritable Bowel Syndrome) is often used when someone has ongoing digestive symptoms but testing doesn’t show anything structurally wrong.
That can be frustrating because being given a diagnosis doesn't necessarily tell you why you're having the symptoms in the first place.
If someone has bloating, constipation, diarrhea, abdominal discomfort, or reactions to foods, I want to know what is driving those symptoms rather than simply accepting IBS as the final answer.
Being diagnosed with IBS doesn’t mean nothing is wrong.
It just means we haven’t clearly identified the cause yet.
Because symptoms like:
bloating after eating
gas
constipation or diarrhea
inconsistent reactions to foods
don’t just happen for no reason.
There is usually something driving that dysfunction.
Why SIBO Is So Common
SIBO is essentially an overgrowth of bacteria in the small intestine, where they don’t belong in large amounts. When bacteria are present in the small intestine in greater numbers than they should be, they can ferment carbohydrates before the food has made its way through the normal digestive process. That fermentation can produce gas and contribute to bloating and abdominal discomfort.
Depending on the type of bacterial overgrowth and what else is going on with digestion, bowel habits can also shift toward constipation, diarrhea, or alternating between the two.
This is one of the most common patterns I see in patients who have been told they have IBS.
And if SIBO is present but not addressed, symptoms tend to stick around no matter how many diet changes you try.
Candida and Yeast Overgrowth
Another piece that often overlaps here is candida or yeast overgrowth.
This can show up a little differently, but there is definitely overlap in symptoms, which is why it can be missed.
Things like:
bloating
sugar cravings
fatigue
brain fog
recurring yeast infections
skin issues like eczema
can all be connected.
It’s not uncommon for patients to have both bacterial imbalance (like SIBO) and yeast overgrowth at the same time.
If you're experiencing these symptoms along with recurring yeast problems, our Candida & recurring yeast support may be worth exploring.
Food Sensitivities Are Often Part of the Picture
This is also where food can become incredibly confusing. A patient may tell me, “I don't know what I can eat anymore.”
Maybe one food bothers them one day but not another. Maybe they feel bloated after meals but can't identify a consistent pattern. Or maybe they've eliminated so many foods that eating has become stressful.
At that point, simply telling someone to eliminate another food isn't necessarily the answer. We need to figure out why they're reacting in the first place.
Why Nothing Seems to Fully Work
Most patients I see have already tried something.
And sometimes those things help… temporarily.
But if the underlying issue - whether it’s SIBO, candida, food sensitivities, or a combination - is still there, symptoms tend to come back.
This is why IBS can feel so frustrating. You’re doing the work, but not getting lasting results. And for many people, that means the next step isn't another diet - it’s figuring out what the diet isn't addressing.
Why Your Diet May Not Be the Whole Answer
One of the first things many people do when they develop IBS symptoms is change their diet. And sometimes that helps.
But I've also had plenty of patients come in who have already eliminated gluten, dairy, sugar, FODMAP foods, processed foods, and just about everything else they can think of - and they're still having problems.
At that point, eating an even more restrictive diet isn't necessarily the solution.
If the underlying problem is bacterial overgrowth, candida, poor digestion, food sensitivities, or another imbalance in the digestive tract, you can spend a lot of time avoiding foods without ever addressing why your body is reacting to them.
That's why I prefer to look at the whole picture rather than simply handing someone another list of foods they aren't allowed to eat.
So What Do We Actually Need to Look At?
Instead of simply asking, “How do we manage the IBS?” I think the better question is, “Why is this happening in the first place?”
Depending on the person, that may mean looking at:
gut bacteria balance
SIBO
candida or yeast overgrowth
food sensitivities
digestive function
diet and lifestyle factors
Sometimes there is one primary issue. Sometimes there are several things contributing at the same time.
When you start connecting those dots, things tend to make a lot more sense - and improve more consistently.
When It’s Time to Look Deeper
If you’ve been dealing with ongoing digestive symptoms and feel like you’re just managing them instead of actually fixing the problem, it may be time to take a more in-depth look.
A lot of patients don’t need more restriction or more guessing - they need better answers.
If Your IBS Symptoms Keep Returning
Whole Health & Wellness works with patients experiencing ongoing IBS symptoms, including bloating, constipation, diarrhea, abdominal discomfort, and other digestive symptoms, by looking beyond symptom management to evaluate the factors that may be contributing. Learn more about our IBS & SIBO support in St. Louis.
Start Your Personalized Care Plan
If you’re ready to figure out what’s actually driving your symptoms and take a more targeted approach, we’re here to help.
About the Author
Dr. Caroline Ricker, DC, DABCI, MTAA, is the founder of Whole Health & Wellness in St. Louis. Her practice combines functional medicine, clinical nutrition, functional laboratory testing, chiropractic care, acupuncture, and other integrative approaches for patients with chronic and recurring health concerns.
Learn more about Dr. Caroline Ricker and Whole Health & Wellness