What does the Short-Chain Fatty Acid Producer Abundance test measure?

Why is Short-Chain Fatty Acid Producer Abundance measured?

Reduced SCFA-producer abundance in an older child may correlate with low dietary fibre intake, chronic constipation, inflammatory gastrointestinal symptoms, or immune dysregulation. Results inform dietary counselling — increasing prebiotic fibre, resistant starch, and diverse plant foods — and may guide probiotic or postbiotic supplementation. SCFA-producer abundance is a functional marker rather than a diagnostic threshold and is read alongside diversity and beneficial-taxon metrics.

Reference ranges

Standard reference

Combined relative abundance of butyrate-, acetate-, and propionate-producing taxa (Faecalibacterium, Roseburia, Blautia, Eubacterium, among others); age-stratified reference percentiles.

Functional medicine optimal

Age- and diet-appropriate abundance; higher in children consuming diverse fibre-rich diets. Percentile rank within the paediatric cohort contextualises the result.

Units

% relative abundance

Reference ranges vary by laboratory and assay platform. Interpret in context of the issuing laboratory's stated range.