KBMO's Gut Barrier Panel (GB Panel) offers 8 advanced markers to assess leaky gut, from mild sensitivity to severe dysfunction. Included with FIT 132 and FIT 176 or as a fingerstick test, it measures key gatekeeper markers—Candida, Zonulin, Occludin, and LPS—using IgG 1–4/C3d and IgA 1–2 for a comprehensive evaluation of gut integrity.