What does a gut microbiome test show?
The balance of bacteria, yeasts and parasites in the gut, along with markers of digestion, absorption and inflammation. Depending on your history we may use a comprehensive stool analysis, a PCR panel for specific organisms, short-chain fatty acids, or single markers such as calprotectin or a parasite screen. Each is chosen for a reason, not run as a set.
What it does not do is diagnose a condition. Microbiome science is young, “normal” is not yet defined for an individual, and the same report can be read many ways, which is why researchers caution against over-interpreting a single test [1]. We read a result as one input beside your history, your symptoms and your GP’s pathology, and we say so before you decide.
The markers we use most
Comprehensive stool analysis — organisms, digestion and absorption markers, in one report.
PCR panel — specific bacteria, parasites and viruses; where a parasite is found, your GP looks after it.
Short-chain fatty acids — how well the gut is feeding itself.
Calprotectin — a marker of gut inflammation, used medically to help separate inflammatory bowel disease from IBS [2]; a raised result goes straight to your GP.
Intestinal permeability markers — measured in research; we do not diagnose “leaky gut” from them or build plans on them.