Roseburia is a genus of intestinal bacteria studied for its ability to ferment carbohydrates and produce butyrate, a short-chain fatty acid. That biological role makes the group interesting, but a Roseburia DNA measurement is not the same as a butyrate test.
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Why researchers pay attention to Roseburia
Experimental work shows that Roseburia strains differ in the carbohydrates they can use. The wider community also affects how nutrients are shared and transformed. A genus total therefore cannot fully describe the metabolic activity of the organisms in an individual gut. [1]
How GI-MAP reports it
The commensal or keystone section contains a Roseburia measurement based on targeted DNA in stool. The value can be compared with the laboratory’s own range, not automatically with percentages or thresholds from unrelated studies. [2]
What a low result does not prove
It does not by itself establish butyrate deficiency, intestinal permeability or inflammatory bowel disease. Other organisms can contribute to short-chain-fatty-acid production, and DNA abundance does not measure actual production or absorption. A value in range is not proof that intestinal function is normal.
Avoid treating a single low count as a prescription for a specific fiber or supplement. Food tolerance, nutritional adequacy and the reason for symptoms need their own assessment. The clinical value of personalized interventions based only on microbiome profiles is still uncertain. [3]
Common questions
Can GI-MAP tell me how much butyrate Roseburia makes?
The organism count does not directly measure that output. A metabolic claim requires evidence beyond the DNA quantity.
Is Roseburia the only butyrate-associated organism on the report?
No. Faecalibacterium prausnitzii is another organism studied in this context, but neither count is a stand-alone functional test.
Sources and review
Sources checked October 7, 2026. Manufacturer material describes the test; clinical guidance and research support the interpretation limits.
- Sheridan et al.: Carbohydrate utilization by Roseburia and related bacteria, 2016
- Diagnostic Solutions Laboratory: GI-MAP interpretive guide (manufacturer specifications)
- International consensus statement on microbiome testing in clinical practice (2025)
Medical review of this article is pending. For a correction or source question, contact GI MAP Test.