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SIBO Test (Small Intestinal Bacterial Overgrowth)

SIBO testSIBO or Small Intestinal Bacterial Overgrowth is a common underlying cause of Irritable Bowel Syndrome (IBS).  SIBO has been shown to be present in up to 78% of IBS cases and should be investigated as part of the root cause.  Under normal conditions, most of our bacteria are far down the digestive tract, in the large intestine. The small intestine should have much lower numbers of bacteria.  However, in SIBO, bacteria from the large intestine may have travelled up into the small intestine and caused an overgrowth.

Under normal circumstances, our body will digest the food we eat first, breaking down carbohydrates and sugars before it reaches bacteria lower in our digestive tract.  When this bacteria is present further up where it is not meant to be, it may ferment food that has not been broken down yet.  This can cause build up of gas and the overgrowth can lead to the symptoms of IBS.

This test works by measuring the gas production by bacteria in your gut.  Prior to the test, a strict diet for 1-2 days will help to ‘starve’ these bacteria so that gas production at baseline is extremely low. At the beginning of the test, a baseline breath sample is taken to measure this.  A sweet liquid (lactulose) is then taken which goes down into your digestive tract.  Once bacteria come into contact with this liquid, they will ferment the sugar and produce gas.  This goes into your bloodstream and out in your breath.  As the solution travels down, gas is produced when there is bacteria present.  If you produce gas early on in the test procedure, this means that the bacteria is high up in the digestive tract – in the small intestine.  If you do not produce any gas until very late in the test, this can be simply due to normal bacteria much lower down in the digestive tract.  Therefore by measuring the output of gas over time, we can determine where the bacteria is located.

The test also measures two types of gas – hydrogen and methane. This can help to identify different types of bacteria in the gut.  This is important so that we can tailor your protocol effectively.  Methane-producing bacteria are more often associated with constipation where hydrogen-producing bacteria are usually associated with loose stools or diarrhea.  Of course there are many exceptions to this rule!  Methane-producing bacteria can also cause problems even when they are not in the small intestine.  Your Nutritionist will discuss how the test results are relevant to you and your symptoms.

Who should take this test?

Anyone with any of the following symptoms should take this test*:

  • Digestive issues from reflux, irritated stomach or bowel, distension or bloating, feelings of extreme fullness after eating, cramps, diarrhoea or constipation, fatty or floating stools
  • Reactions to foods which may be difficult to pin-point
  • Related issues such as anxiety, acne rosacea, unexplained joint or muscle pain
  • Unexplained fatigue, brain fog
  • Weight loss-resistance

 If you have ongoing digestive issues and are interested in functional medicine testing: please contact us at clinic@glenvillenutrition.ie or make an enquiry online.  We have a number of different tests available and it is most helpful, and cost effective, to carry out an initial assessment with your Nutritionist before testing.

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    Testimonials

    I just wanted to let you know that we had a beautiful baby. Please pass on our sincere thanks, we really appreciate it and obviously the fantastic result we achieved! Thanks to you for your very efficient and kind care during this time.A happy couple from Dublin
    Thank you so much for all your help and support. We cannot believe our little miracle is here, I feel like we have won the lotto! I definitely think it was all the changes we made, she is a product of good nutrition!Anon, Carlow
    I want to thank you for helping us both this year. Not only has my colitis settled down and I feel much better, you were also a huge part in helping us achieve our ultimate goal of getting pregnant. We will both be eternally grateful for this and thank you sincerely. D&GS, Galway
    Compared to my last test 8 months ago the morphology increased from 3% to 35% and my DNA Fragmentation went from 37% to 22%. I could only have achieved these results with your assistance and expertise and would like to thank you for all the guidanceEP, Limerick
    Thankfully we dramatically improved the quality of my eggs and were left with one viable embryo which went on to be a successful pregnancy! We are over the moon and thrilled with our little girl. I just wanted to send you an update to let you know and perhaps to give hope to others in a similar position and unsure about whether to try the nutritional approachSinead, Dublin
    I feel so alive and energised. The added bonuses are a healthy BMI, normal cholesterol levels, 20kgs lighter and a reduction to my metabolic age by 20 years+. It has been so worth all the time and effort to create this new healthy lifestyle. Thank you for all your excellent advice and encouragement. Your professionalism and attention to detail has brought me to this transformed new state, a new me!Maria, Dublin
    Since my first appointment the improvement in my health is amazing. Symptoms of my Inflammatory Bowel Disease have decreased and my energy levels have increased. My hair has become more conditioned and my nails are less brittle. I can honestly recommend a visit to Glenville Nutrition Clinic for a particular illness or as a boost to your general wellbeing E.K, Galway
    I FINALLY I lost all the extra pounds I was holding for two years, and my digestion improved MASSIVELY!! Nothing compared to when I first came looking for help!! I WILL ALWAYS BE SO THANKFUL FOR THAT, you wouldn't believe how much good you did for me, I was lost. Fitness Instructor, Dublin
    My journey with Glenville Nutrition has made a vast improvement in my health and well-being. You’ve helped me to adopt a completely new approach to food and healthy eating. To date I have lost 26 lbs. In just 7 weeks my cholesterol dropped from 5.8 to 4.4. My arthritic joints have vastly improved and I look forward to my daily walk. Friends and family have complimented me on how well I look!! Again my sincere thanks & appreciation of your excellent blend of professionalism, encouragement and compassion. Kathleen, Galway
    I had expected the physical benefits, but the mental and emotional benefits were unexpected and glorious. I cannot recommend Glenville Nutrition highly enough. I think it is fair to say that working with them changed my life. Sometimes you don’t even realise how bad you feel until you start to feel better. That is a gift that you can give yourself. Sincerest thanks for all you did for me.Aisling, Kilkenny
    I am so thrilled with having met you at Glenville Nutrition. The advice and supplements I have received is helping me enormously. I am feeling 1000 times better since I first started.Patient, Dublin
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