Your gut is more than just a food processor — it’s home to trillions of microbes that influence your digestion, immunity, and even mood. If you often feel bloated, gassy, constipated, or notice food doesn’t sit well, your digestive system might be calling for attention.
Do you often:
- Experience bloating, reflux, or gas?
- Have alternating constipation and diarrhoea?
- Notice undigested food in stool?
- React badly to certain foods?
Two or more “Yes” suggests you might be dealing with gut dysbiosis, leaky gut, SIBO, or inflammation.
| Test | Provider | Reasoning | Citation |
|---|---|---|---|
| GI-MAP + Zonulin | Nutripath | Comprehensive stool DNA test with zonulin for gut permeability. Identifies gut pathogens, microbiome balance, digestion markers, and intestinal permeability (zonulin) or “leaky gut“. This is the gold-standard functional stool test. | Fasano, 2012. |
| SIBO Breath Test | Nutripath | Detects bacterial overgrowth in the small intestine, a common cause of bloating, IBS, and carb intolerance. | Sorathia et al., 2023 |
| Food Sensitivity Panel + Zonulin | KBMO Nutripath | Measures the body immune response to various foods, using IgG antibody levels. Zonulin is a protein that regulates intestinal permeability, or “leaky gut” and is linked to the development of various diseases. | Carroccio et al., 2012 |
Disclaimer: These are specialised functional tests to identify root causes of your symptom(s). Functional testing should be considered as a complement to conventional medical evaluations from your healthcare provider. We recommend pursuing these specialised assessments after standard medical tests have been done to rule out common conditions, or when conventional testing indicates normal results despite your persistent symptoms.
Conventional tests may include these (not exhaustive), depending on your other symptom(s):
| Tests | Reasonings (In brief specifics, not exhaustive) |
| Full Blood Count (FBC) or Complete Blood Count (CBC) | Haemoglobin and Indices levels- to look for iron deficiency anaemia- non invasive and cheap to suspect any blood loss through the bowels. This is a RED FLAG for high risk of bowel cancer. |
| Iron profile inc. ferritin | Measures Iron stores in the body- Low ferritin indicates iron deficiency anaemia. High levels is less specific and can be caused by infection, inflammation, autoimune, cancer, liver damage. |
| Erythrocyte Sedimentation Rate (ESR) +/- C- Reactive Protein (CRP) | Raised in infection and inflammation of various causes- So helpful to know if body is undergoing stress and working harder, but doesn’t pin-point the exact cause. |
| Urea & Electrolyes (also known as Renal Profile, Renal Function Test) | Especially important if symptom is predominantly diarrhoea, to look for signs of electrolyte imbalance from fluid loss through bowels. Imbalances can cause dehydration and fatigue. |
| Thyroid function tests | Test includes Thyroid Stimulating Hormone (TSH), T4, T3 levels. Overactive thyroid can cause diarrhoea, and opposite in true for Underactive thyroid causing constipation. In the presence of normal levels, with persisting symptoms, more detailed tests (as in Fatigue) can be done |