# Does SIBO Ever Go Away? Why IBS-D Keeps Coming Back

> Does SIBO ever go away? Kieran breaks down the real drivers behind IBS-D, loose stools and urgent motility, and what actually helps.

- Source: https://gutfix.ai/blog/does-sibo-ever-go-away-ibs-d
- Author: Kieran, GutFix co-founder (https://gutfix.ai/about)
- Published: 2026-08-14
- Category: SIBO
- Reading time: 4 min

IBS-D and diarrhoea in general is just water being pulled into the bowels and rapid motility, knowing what it is we can ask why that happens. You've been told you have IBS-D. You feel it in your loose, urgent and watery stools, but nobody explained to you what drives it.

## Key takeaways

- IBS-D and diarrhoea in general is just water being pulled into the bowels and rapid motility, knowing what it is we can ask why that happens
- IBS-D is almost always a hydrogen or hydrogen sulfide overgrowth
- Binding hydrogen and killing it's producers is essential, as well as addressing the low stomach acid that allowed them to bloom

## What causes IBS-D in the first place?

You've been told you have IBS-D. You feel it in your loose, urgent and watery stools,

But nobody explained to you what drives it. Nobody explained how to get relief from it.

Here's a few things you should know and a few things that may help:

- IBS-D and diarrhoea in general is just water being pulled into the bowels and rapid motility, knowing what it is we can ask why that happens
- The most common reason is an irritated and senitive gut lining, inflammation itself causes the water to be pulled in and "flush" out percieved threats. Zinc L-Carnosine and butyrate are often good for this
- Another reason actually starts off with a symptom, you know when you get that diarrhoea where you feel anxious, jittery and wired? That's histamine diarrhoea, when high levels of histamine are released from mast cells it acts as a signal to the body to flush the pathogen out. Even if there's not one it does it anyway. PEA is great for this.
- If you see an oily film on your stool. this is bile diarrhoea, it happens because there is a bacterial overgrowth breaking down your bile. making it toxic and guess what? irritating the gut lining and causing the same flushing response. Calcium D-Glucarate, Propolis and Zinc are great for this, as well as temporary fat restriction
- IBS-D is almost always a hydrogen or hydrogen sulfide overgrowth. Alongside the causes mentioned, these irritate the lining and make it more sensitive to the above irritants. Binding hydrogen and killing it's producers is essential, as well as addressing the low stomach acid that allowed them to bloom. Atrantil is great for this.

## Why does bile diarrhoea look oily?

If you see an oily film on your stool. this is bile diarrhoea, it happens because there is a bacterial overgrowth breaking down your bile. making it toxic and guess what? irritating the gut lining and causing the same flushing response. Calcium D-Glucarate, Propolis and Zinc are great for this, as well as temporary fat restriction. This ties back into the broader [bile flow pathway](https://gutfix.ai/blog/bile-flow-pathway) that governs so much of gut function.

## What if you don't know your patterns?

What if you don't know your patterns? Or don't know where to start?

GutFix can help support you in piecing together the puzzle. Understanding your [SIBO](https://gutfix.ai/blog/how-do-you-tell-if-you-have-sibo-3) triggers, whether hydrogen, hydrogen sulfide, histamine or bile related, is the first step to actually getting relief rather than just managing symptoms.

## Frequently asked questions

### What is IBS-D actually caused by?

IBS-D and diarrhoea in general is just water being pulled into the bowels and rapid motility, knowing what it is we can ask why that happens. The most common reason is an irritated and senitive gut lining, inflammation itself causes the water to be pulled in and "flush" out percieved threats.

### What is histamine diarrhoea?

You know when you get that diarrhoea where you feel anxious, jittery and wired? That's histamine diarrhoea, when high levels of histamine are released from mast cells it acts as a signal to the body to flush the pathogen out. Even if there's not one it does it anyway. PEA is great for this.

### What does an oily film on stool mean?

If you see an oily film on your stool. this is bile diarrhoea, it happens because there is a bacterial overgrowth breaking down your bile. making it toxic and guess what? irritating the gut lining and causing the same flushing response. Calcium D-Glucarate, Propolis and Zinc are great for this, as well as temporary fat restriction.

### Is IBS-D always linked to SIBO?

IBS-D is almost always a hydrogen or hydrogen sulfide overgrowth. Alongside the causes mentioned, these irritate the lining and make it more sensitive to the above irritants. Binding hydrogen and killing it's producers is essential, as well as addressing the low stomach acid that allowed them to bloom. Atrantil is great for this.

### What helps if you don't know your own patterns?

What if you don't know your patterns? Or don't know where to start? GutFix can help support you in piecing together the puzzle.

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