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Upset Stomach


We use non-invasive QuinTron breath tests to determine Small Intestine Bacterial Overgrowth (SIBO) and develop personalized treatments for your unique needs.

Download the referral form to give it to your doctor if you are interested in SIBO testing.

Supervised in-person and at-home collection options available

In-person collection on select dates only. Space is limited. Call to reserve your spot.



Small intestine bacterial overgrowth, or SIBO, is an infection of the small intestines by bacteria normally found in the large intestine.


Symptoms of SIBO can vary depending on the location or extent of the infection. Some common symptoms include:

  • Nausea

  • Belching

  • Vomiting

  • Halitosis (bad breath)

  • Heart burn

  • GERD

  • H. pylori infection

  • Delayed stomach emptying

  • Bloating

  • Gas

  • Cramps or abdominal pain

  • Constipation, diarrhea, or alternating bowel movements

Other, less obvious symptoms of SIBO include:

  • Restless legs

  • Skin issues (i.e., eczema, rashes, rosacea, acne)

  • Mood complaints (i.e., depression, anxiety)

  • Fibromyalgia

  • Muscle weakness

  • Joint pain

  • Fatigue

  • Weight gain/loss (a good indicator SIBO is present is if removal of grains, dairy, and sugars results in significant weight loss)

  • Malnutrition

  • Leaky gut symptoms

  • Food sensitivities

  • Histamine sensitivities

  • Headaches

  • Cognitive complaints (i.e., brain fog, poor memory, poor focus)

  • Steatorrhea (fatty stools)

  • Anemia (iron or B12)



At Natural Medicine of Stillwater, we diagnose SIBO using either a glucose or lactulose sugar challenge, via a QuinTron breath analyzer. QuinTron is the industry standard trusted by the largest medical institutions and top researchers.


We are proud to be one of the clinics in the state of Minnesota to run this test through our on-site lab. Our QuinTron breath analyzer is the most up-to-date unit allowing for the measurement of both hydrogen and methane gases.



Your SIBO diagnostics allow for a personalized treatment protocol. Our treatment goal is to fix your health, and we leverage all possible treatments to reach that goal.

We will work with your referring healthcar
e provider to coordinate care and minimize your out-of-pocket costs. We also have an on-staff prescribing doctor to assist with any necessary prescriptive treatments.



  • Herbs

  • Antibiotics

  • Pro-kinetics

  • Tissue healing nutrients

  • Amino acids

  • Anti-inflammatories

  • Digestive aids

  • Immune support

  • Probiotics

  • IV therapies & vitamin shots

  • Anti-fungals

Neurovanna logo.jpg

SIBO testing is performed by Neurovanna.

Holistic SIBO Approach

In order to fully recover from SIBO, it is sometimes necessary to "reboot" a number of systems and organs to improve symptoms and reduce reinfection rates. Diagnosis of SIBO is the first step, but a number of other holistic approaches are commonly needed to return to a state of optimal health.

Psychology Session

SIBO and Mental Health

The brain-gut connection is a major aspect of SIBO often not fully addressed. Chronic immune activity from SIBO can result in nervous system imbalances,  leading to or exasperating fatigue and mental health concerns such as:

  • Depression

  • Anxiety

  • Insomnia

  • OCD


SIBO activity can also result in neuropathies and cognitive changes often blamed on other chronic infections, autoimmune disorders or the aging process.

Deer tick that can carry Lyme disease

SIBO and Lyme Disease

SIBO symptoms are often mistaken for Lyme disease, and SIBO is commonly a problem found in persistent Lyme disease. When co-existing with Lyme disease, SIBO symptoms often mimic past Lyme symptoms and can result in over-treating. Additionally, effectiveness of infectious disease treatments are difficult to accurately monitor if SIBO is part of the picture.

Plus Size Model

SIBO and Hormones

SIBO metabolic waste products challenge liver detox functions, which can lead to:

  • Sex hormone imbalances

  • Excessive harmful estrogen metabolites

  • Fatty liver

  • Higher levels of ammonia.


Most sufferers of acne, PCOS and fatty liver suffer from SIBO.


​Additional testing will depend on your unique clinical complaints but could include these test types:

  • Genetic

  • Neurotransmitter (brain)

  • Nutritional

  • Hormonal

  • Inflammation

  • Autoimmune

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