Method: Shotgun metagenomic sequencing (CLIA 21D2062464); not cleared or approved by the FDA. Results reflect relative microbial abundance for wellness education purposes. Not intended to diagnose or treat disease and not a substitute for clinical consultation. Microbial associations are based on emerging scientific research and may change over time. Derived from laboratory results. This score or index is not an FDA-cleared test. It aids clinician-directed assessment and is not a stand-alone diagnosis.
A derived biomarker is a value that is calculated from other directly measured biomarkers rather than being measured directly in the lab.
Key benefits of Prevotella/Bacteroides ratio testing
- Dietary pattern and gut enterotype tracking
- plant vs omnivore microbiome axis assessment
What is Prevotella/Bacteroides ratio?
The Prevotella/Bacteroides ratio is a derived metric comparing the relative abundances of the Prevotella and Bacteroides genera. It reflects the dominant carbohydrate-fermenting axis of your gut microbiome - a key marker of dietary pattern and gut enterotype.
Why is Prevotella/Bacteroides ratio important?
High Prevotella/Bacteroides ratios are associated with plant-rich, high-fiber dietary patterns. Low ratios (Bacteroides-dominant) are more common in Western, higher animal protein diets. Neither pattern is inherently superior; context and individual health goals matter. Serial tracking may reflect meaningful dietary changes.
What insights will I get?
Your Prevotella/Bacteroides ratio situates your gut microbiome on the spectrum between plant-fiber-dominant (Prevotella-type) and omnivore-pattern (Bacteroides-type) microbiome profiles. Tracking this ratio over time alongside dietary changes may reveal microbiome responsiveness to diet.





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