Reference entry
GALT
Plain-English definitions of microbiome research vocabulary — the terms you'll see across articles, testing services, and probiotic claims.
Glossary context
Defined
in the site-wide microbiome glossary
Definition
Gut-Associated Lymphoid Tissue. The immune tissue distributed throughout the intestinal lining, containing approximately 70% of the body's immune cells. The microbiome plays a critical role in training and regulating GALT function.