Dr. Nirala Jacobi is a naturopathic doctor (ND) and internationally recognized expert on small intestinal bacterial overgrowth (SIBO). She is the creator of the SIBO Biphasic Diet, a resource that has helped tens of thousands of SIBO sufferers around the world.
Dr. Jacobi is the host of The SIBO Doctor Podcast and the founder of The SIBO Doctor, an online educational platform that includes a practitioner certification program. She is also the medical director of SIBOtest, providing innovative testing options for SIBO and IBS.
Dr. Jacobi is known for her systematic and effective approach to diagnosing and treating SIBO and other functional digestive disorders. Having received her naturopathic doctorate in 1998 from the esteemed Bastyr University in Seattle, Washington, she brings more than two decades of clinical experience and expertise to the Biome Clinic.

Nirala Jacobi, ND