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Are you experiencing ?

Bloating, constipation, diarrhoea, IBS, irritable bowel syndrome, acid reflux, indigestion, bad breath, flatulence, wind, stomach cramps, IBD, diverticulitis or Crohns.


These are all symptoms that the gut and digestive system may be out of balance and that there may be toxic microorganisms present such as an overgrowth of bacteria, yeast, fungus or a parasitic infection. These toxins can, in turn, affect the entire body and cause secondary symptoms such as tiredness, cravings, feeling 'hung over', tired on waking, chronic fatigue (CFS), painful muscles, fibromyalgia, inflamed joints, arthritis, beer belly, putting on weight for no reason, difficulty with weight loss, sinus problems, PMS, thrush, fungal infections, brittle nails, chest infections, cystitis, migraines, headaches, sore throats, ear infections, skin problems, itchy skin, skin rashes, eczema or psoriasis. Both bulimia and anorexia have been linked to gastrointestinal infections.

Online Nutritionist London

Many people who clear yeasts or pathogenic bacteria in their systems go on to be much more tolerant of foods and we often recommend a gut or digestive test before taking a Food Intolerance Test. You could avoid the food culprit for a while but the underlying issue will still be present, and may be getting worse. In the end, you may not be able to tolerate certain foods at all without severe symptoms.


The last word is reserved for that of the Parasite! This clever organism lives off the host person whom it has infected. It can cause all manor of gastrointestinal problems including diarrhoea, migraines, IBS, IBD, Crohn’s, diverticulitis, as well as severe bloating and pungent flatulence. It can also cause severe skin problems such as psoriasis. As the skin is the largest detoxification organ of the body, if the liver cannot cope with the toxins, they will come out through the skin. There is a particular way of dealing with parasites but firstly a Gut or Digestive test must be undertaken to see if they are present. 


At Think Nutrition, over the past 20 years, we have seen an increasing number of parasite cases that feature systemic complaints not traditionally associated with parasites by the medical profession, such as: infertility, severe skin complaints, reactive arthritis, migraines, headaches, psoriasis, alopecia, hormonal imbalances, chronic fatigue syndrome, M.E and asthma. We have also had gut tests back from those with bowel cancer showing TMC for parasites (Too Many to Count) and coincidentally when these parasites were eradicated, the person was given the all clear from cancer. 

​To Order Your Test:

A Nutrition Consultation is recommended before ordering any of these tests to ensure that you order the appropriate test for your needs. Please note that when you click on the ORDER A TEST button, you will go through to the Genova Diagnostics website ( to order your test kit and you will need our practitioner code inorder to proceed. You will find our practitioner code on your original Nutrition Consultation or Coaching booking confirmation email. Find your test in the A-Z list, add the quantity and then click UPDATE, add any other tests, and click CHECKOUT. Once you receive your test kit, please read the Collection Instructions carefully to make sure that you are not taking any medications that may interfere with the test and prevent you from taking it. You will also be shown how send your sample(s) back to the laboratory - please check on these instructions, if your sample(s) must be frozen as soon as they are collected and prior to being transported.

With the exception of Food Intolerance Tests, a Nutrition Consultation is recommended before ordering any tests.


Stool Specimen

CODE: 2207

The Gut Pathogen Profile is a stool test utilising cutting edge technology. It also provides an actionable assessment of gut bacteria, fungal, yeasts and parasites using a sample taken at home over 3 days. You can choose to add additional biomarkers if you wish to be tested for Campylobacter, Clostridium difficile, Shiga toxin Escherichia coli or Helicobacter pylori. 


Stool Specimen

CODE: 2200

The GI Effects® Comprehensive Stool Profile is an advanced stool test that provides a comprehensive, actionable assessment of gastrointestinal health and offers a valuable insight into your digestive function, intestinal inflammation and intestinal pathogenic parasites, bacteria, yeasts and fungal overgrowth. The above biomarkers may be added, as well as Zonulin Family Peptide, Fecal Lactoferrin, KOH for yeasts or a Macro Exam for Worms. 

(Small Intestinal Bacterial Overgrowth)

Breath Test

CODE: 2337

The SIBO test is a simple, non-invasive breath test using an ingestion of a lactulose solution to evaluate bacterial overgrowth of the small intestine over a 3 hour time period. Symptoms of SIBO may include abdominal pain, bloating, stomach distention, wind and flatulence. Small Intestinal Bacterial Overgrowth (SIBO) has been linked to Coeliac disease, IBS, IBD and Diabetes.


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