Blautia
Blautia is a common genus in the Firmicutes phylum found in many healthy adult guts, where it ferments dietary carbohydrates and contributes to short-chain fatty acid production. It is a frequent, and often stable, member of the community.
Blautia is often present as part of a balanced gut and has been studied in connection with metabolic health, making it a genus of growing interest. Its steadiness across many healthy people makes it a useful part of the overall picture.
A higher share of Blautia is generally viewed neutrally to favorably and reflects a strong presence of a common fermenting genus. As a relative reading from one sample, a higher share is a soft signal rather than a diagnosis.
A lower share means this genus is lightly represented in your sample, which is best read alongside diversity and the rest of your community rather than on its own.
There is no established target for Blautia, and a varied, fiber-rich diet is the usual general lever. Because this science is still young, read your level as part of the broader trend and interpret with a clinician.
Sources
Educational context only, not medical advice or a diagnosis. Reference ranges vary by lab, age and sex; always discuss your results with a clinician.