What is the reference range for Bacteroides species abundance?

The standard reference range for Bacteroides species abundance is Low or absent during early infancy; increases after introduction of complementary foods.. Reference ranges vary by laboratory and assay platform — interpret in context of the issuing laboratory's stated range.

Which tests measure Bacteroides species abundance?

Bacteroides species abundance is measured in 1 test on BiomarkersLabs.com, including Baby Gut Health Test.

Biomarker Reference · Bacteroides %

What does the Bacteroides species abundance test measure?

Q: Why is Bacteroides species abundance measured?

Bacteroides abundance is a marker of dietary transition. Elevated levels during exclusive milk feeding, especially when Bifidobacterium is low, can signal dysbiosis. Appropriate expansion with complementary feeding supports immune tolerance and metabolic health.

Bacteroides species abundance (Bacteroides %) is a clinical biomarker used in microbiome-gut assessment. Bacteroides are obligate anaerobic Gram-negative bacteria specialised in degrading complex plant polysaccharides. It is measured in 1 laboratory test on BiomarkersLabs.com.

Reference Range: Low or absent during early infancy; increases after introduction of complementary foods.
Units: % relative abundance
Measured In: 1 test
Category: —

Functional medicine optimal<5% during exclusive milk feeding; rising to 10–30% after solid food introduction.

What is Bacteroides species abundance?

Bacteroides are obligate anaerobic Gram-negative bacteria specialised in degrading complex plant polysaccharides. They are largely absent or present at low abundance during exclusive milk feeding and expand when solid foods introduce dietary fibre. Premature or excessive Bacteroides colonisation during the milk-fed period may reflect early dysbiosis or formula feeding.

Why is Bacteroides species abundance measured?

Bacteroides abundance is a marker of dietary transition. Elevated levels during exclusive milk feeding, especially when Bifidobacterium is low, can signal dysbiosis. Appropriate expansion with complementary feeding supports immune tolerance and metabolic health.

Reference ranges

Standard reference: Low or absent during early infancy; increases after introduction of complementary foods.
Functional medicine optimal: <5% during exclusive milk feeding; rising to 10–30% after solid food introduction.
Units: % relative abundance

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

Tests that measure Bacteroides species abundance

1 test on BiomarkersLabs.com include this biomarker.

BML-MBG-008Comprehensive

Baby Gut Health Test

Bacteroides species abundance reference range in this test: Low or absent during early infancy; increases after introduction of complementary foods.

Related clinical conditions

Related Biomarkers

Frequently measured alongside

Bifidobacterium species abundanceBifidobacterium %1 test Pathobiont and pathogen detectionPathobionts1 test Microbial diversity (Shannon index)Shannon H'2 tests Lactobacillus species abundanceLactobacillus %1 test

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