Fructose breath test: I have just had this done... - IBS Network

IBS Network

48,835 members16,114 posts

Fructose breath test

Ibsr profile image
Ibsr
10 Replies

I have just had this done today ( finally) and it showed positive.

Does anyone know EXACTLY what this means?

Firstly I am sure it means fructose malabsorption.

Secondly, I was advised that taking a fructose test covers the lactose and glucose tests too so there was no need to test for those two.. So does that mean I malabsorb all 3? AND that I have SIBO?

Just waiting for the report and no doubt a list of antibiotics ( to cause more digestive issues!)

So I hope someone out there can advise more info and maybe some tried and tested remedies other than antibiotics. ( already on FODMAP)

Thankyou:-)

Written by
Ibsr profile image
Ibsr
To view profiles and participate in discussions please or .
Read more about...
10 Replies
robrascal profile image
robrascal

Hi I have just had the SIBO test and my result was negative after being tested for breath test over a 3hour session.Having had to starve first and then I understood that if it had been positive it would have meant over growth of bacteria in the small colon-which can be treated by antibiotic.This was after drinking Glucose. I understood that for other tests one takes diferent sugars. This was through a hospital Gastroenterologist. hope this may help

bigbunbun3 profile image
bigbunbun3

Hi I have just started using this website, I have had IBS for many years, and have found the FODMAP diet beneficial. I was interested to learn that you have had a Fructose breath test, do you know if this is available in the UK, as my GP did not know of that particular test when I inquired a while ago.

Ibsr profile image
Ibsr

Hi big bun, yes I had it done in London. A year ago I got my GP to refer me to a gastroenterologist. Had a celiac test and then had to research and push for further tests myself.

The fructose test is actually called the Hydrogen Breath test and can be done with lactose, glucose or fructose.

In my case I have been on FODMAPS since feb and knew that sugar was a major issue.

If you're still having slight issues on FODMAPs than I would suggest asking for the test or a referral if the GP is still not clued up on it.

Good luck:-)

bigbunbun3 profile image
bigbunbun3 in reply toIbsr

Hi Ibsr thank you for the info I will look into it.

jimb0123 profile image
jimb0123

Hi Ibsr,

I think it's good that the Gastro's now have some hard data which confirms you have a problem- they don't seem to get very excited about described symptoms.

It would be good if you would share what treatment is recommended.

I'm a bit confused with what this all means myself, however from what I can gather the small intestine is meant to be relatively bacteria free, instead this is where enzymes are meant to be released which then break down nutrients ready to be absorbed via the intestinal wall. The remainder goes through to the colon where bacteria do the work.

If bacteria creep into the small intestine they:

*Create gas which is uncomfortable (I don't think much swallowed air is meant to get far down your gut)

*Create byproducts (one being hydrogen) which are quickly absorbed into the body- some of these byproducts might be toxic to the body. I don't think the hydrogen is bad per se it's just a diagnostic tool, if there are two peaks instead of one there is hydrogen production both in the small and long intestine have

*Create or exacerbate problems with the mucosal layer. This is bad news as the mucosa provides a vital barrier between the outer world and the inner world. A compromised mucosal layer (also known as leaky gut) allows bacteria and debris in through the gut wall possibly leading to a immune response.

Some factors which can lead to bacterial overgrowth in the small intestine are:

* Infections affecting the mucosal layer

* Peristalsis (wave function used to move matter through the gut) not working correctly

*Reduced enzyme production

* Reduced acid production in the stomach

* Problems with the valve between the small and long intestine allowing bacteria to wash back into the small intestine

*Combination of all of the above

I found this animation of the gut recently which helps with understanding things:

youtube.com/watch?v=gnZEge7...

As I say this is all my take on it, don't take it as gospel!

Cheers and good luck,

J

jimb0123 profile image
jimb0123 in reply tojimb0123

Also I guess you might have a colon y of the wrong type of bacteria (hydrogen) in the long intestine...

Ibsr profile image
Ibsr

Hi J, this is what is so confusing, I have read that in fructose malabsorption the small intestine does not need enzymes to process fructose.

Once it gets into the LI, it can either back flow to the SI due to a faulty ileo cecal valve. Or it can stay in the LI and leak into the walls and the blood supply, hence foggyness etc.

Am still looking at alternative ways to treat this and there is not much out there to help:-(

jimb0123 profile image
jimb0123 in reply toIbsr

OK just using deduction we could maybe assume that the mucosal layer has been compromised for some reason and 'bad' bacteria have taken hold so rather than the fructose being absorbed directly into the body, instead it is being metabolised by the bacteria.

If you are looking for alternatives a friend has recommended berberine/ berberis tincture with total recovery - he went on an exclusion diet and used the tincture for 6 months.

Ibsr profile image
Ibsr in reply tojimb0123

Thanks, will look into that:-)

Ibsr profile image
Ibsr

Update***

It turns out that I was advised wrong info at my fructose testing. I DO have to go back and be lactose tested now. Don't you just love the lack of knowledge on IBS at the NHS!

Not what you're looking for?

You may also like...

H pylori stool test was negative, is that different then fructose malabsorption

So I have been having issues with my gi tract.. so the doctor ran a h pylori test and it was...
kkgirl profile image

Anyone have false negative fructose test

False negative fructose malabsorption test. I did that test and I was so sick from it but the test...
kkgirl profile image

Have a hydrogen breath test

Hello all, I just wanted to give you some information as it may be helpful. I have been lucky...
Stupid_poos profile image

FODMAP Advice/ Fructose Malabsorption

Hi, just a quick question, hoping someone has had a similar experience (I'm new to this forum,...
claram123 profile image

Lactose and fructose intolerance: unsolved mystery

I have been lactose and fructose intolerant for as long as I can remember (3 or 4). No-one in my...

Moderation team

IBSNetwork profile image
IBSNetworkPartner

Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.

Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.