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Small Intestine Bacterial Overgrowth (SIBO) 3-hr Lactulose - Genova Diagnostics

Blood Test Types

This test can be purchased without a physician and is an at home test which is shipped to the patient with instructions. Upon completion, the test is sent to the lab for results and the results will be provided through email.

Small Intestine Bacterial Overgrowth (SIBO) 3-hr Lactulose - Genova Diagnostics

Small Intestinal Bacterial Overgrowth (SIBO or BOSI) occurs when bacteria invade the normally bacterial-less small intestines. This promotes inflammation, absorption issues, bloating, gas, abdominal pain, diarrhea, and other serious digestive issues.

By testing both hydrogen and methane, this SIBO breath test can help indicate wherein the small intestine the overgrowth is since levels of each gas vary in location.

Studies show that SIBO can also be attributed to:

  • Leaky Gut
  • Autoimmune conditions such as Hashimoto’s, IBD, Scleroderma, and Celiac Disease
  • Osteoporosis
  • Fibromyalgia
  • Chronic Fatigue Syndrome
  • Anemia
  • Carbohydrate Intolerance

What’s Being Tested:

  • Hydrogen and methane for the detection of SIBO
  • Testing includes drinking lactulose


  • Do not order this test if you are allergic to lactulose or are diabetic.

Genova Diagnostics SIBO Test Sample Test Report

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