SIBO Protocol Builder

Small Intestinal Bacterial Overgrowth (SIBO) treatment targets the excess bacteria in your small intestine using antimicrobials, dietary changes, and motility support. The right approach depends on your SIBO type (hydrogen, methane, or hydrogen sulfide), your treatment history, and your preferences.

Pharmaceutical treatment is the most studied approach. Rifaximin (Xifaxan) is the gold-standard antibiotic for hydrogen-dominant SIBO, prescribed at 550 mg three times daily for 14 days. For methane-dominant SIBO (also called IMO), rifaximin is combined with neomycin 500 mg twice daily, because methanogens are archaea — not true bacteria — and require dual therapy. Studies show this combination achieves clearance rates of 85% compared to just 33% with rifaximin alone.

Herbal antimicrobials are a well-researched alternative. A landmark 2014 study by Chedid et al. published in Global Advances in Health and Medicine found that herbal therapy was as effective as rifaximin for SIBO treatment. Key herbs include berberine (found in goldenseal and Oregon grape), emulsified oregano oil, neem, and allicin from stabilized garlic extract. Herbal protocols typically run 4 to 6 weeks.

The elemental diet is a liquid-only approach that provides pre-digested nutrients absorbed in the upper small intestine before bacteria can ferment them. Research by Dr. Mark Pimentel shows an 80-85% clearance rate with strict adherence over 2 to 3 weeks. While effective, it requires strong commitment and medical supervision.

Regardless of which treatment approach you choose, prokinetic therapy after treatment is critical for preventing SIBO recurrence. Prokinetics support the Migrating Motor Complex (MMC) — the cleansing wave that sweeps bacteria from the small intestine between meals. Options include low-dose erythromycin, MotilPro (ginger + 5-HTP), and Iberogast. Spacing meals 4 to 5 hours apart with no snacking also supports MMC function.