Hydrogen Breath Testing

We are offer Hydrogen Breath Testing for Genetic Food Sensitivity and Gastrointestinal Disorder Screening. The test is performed in visit and measures the concentration of hydrogen and methane gases in your breath. The level of these gases can identify many conditions, including the following most commonly undiagnosed causes of IBS (irritable bowel syndrome) symptoms:

Small Intestinal Bacterial Overgrowth (SIBO)

Genetic Sucrase-Isomaltase Deficiency (GSID)

Lactose Intolerance

Fructose Intolerance 

Preparing For Your Test:

All patients must first be evaluated in visit via a medical nutrition assessment by one of our RDNs prior to scheduling a test date. This is in order for us to correctly assess which condition is best to test for, as well as allow us time to determine eligibility and order a test kit from our lab. Test preparation also varies depending on what is being tested for.


Once your dietitian assesses your symptoms, you will be given more detailed instructions on test preparation. If you test positive for a condition, you will be provided with an evidenced based medical diet plan (Medical Nutrition Therapy), which includes detailed instructions for treatment of your condition. We may also refer you to your primary physician or gastroenterologist with your results, requesting review for medication or medical food supplement prescription if necessary. 


The day before the test you will be asked to follow specific dietary guidelines depending on what we will test for. You will be asked to not exercise the morning before the test. You will be given a sugar solution at your appointment to consume prior to initiation of the test. The type of sugar (sucrose, glucose/dextrose, lactulose, etc) will again vary depending on what condition is being tested. Here is a little about each of the most common conditions:

Small Intestinal Bacterial Overgrowth (SIBO):

Like the name suggests, SIBO is where bacteria enter your normally sterile small intestine and begin to colonize. Studies have indicated that potentially up to 80% of patients with IBS may in fact have SIBO, which a Hydrogen / Methane breath test can easily and non-invasively help determine. Treatment of SIBO can be done with a short course of antibiotics provided by your medical professional in addition to Medical Nutrition Therapy. Medication alone will not resolve this. Common symptoms and reasons to test for SIBO: Nausea, Flatulence, Diarrhea, Constipation, Malnutrition, Irritable Bowel Syndrome (IBS), Irritable Bowel Disease (IBD), Leaky Gut Syndrome (Metabolic Endotoxemia), Chronic Fatigue Syndrome, Acid Reflux, Rosacea, Restless Leg Syndrome (RLS), Fibromyalgia, Gastroeseophageal Reflux Disease (GERD), Celiac Disease & Diverticulitis.

Genetic Sucrase-Isomaltase Deficiency (GSID):

Sucrose (common table sugar) is a disaccharide composed of glucose and fructose. It is found in sugar cane and sugar beets, and the fructose moiety is responsible for its characteristic sweetness. The enzyme sucrase (also called sucrase-isomaltase, saccharase or invertase) is present in both animal and plant tissues, and hydrolyzes sucrose into its two component monosaccharides. Some poeple have a genetic mutation where they do not produce this critical enzyme, and therefore feel they need to avoid all carbohydrates to avoid symptoms. This is not necesary as there is a very specific nutrition thrapy for the condition that allows the enjoyment of many carbohydrates and some specific sugars. With prescription enzyme supplementation, symptoms can resolve completely. Symptoms include: Chronic diarrhea, Chronic Abdominal Pain, Gas, Abdominal Distention, Postprandial (post meal) symptoms. 

Lactose (Lactulose) Intolerance / Malabsorption:

Lactose is the sugar found in dairy products such as milk and other dairy foods.  Intolerance to lactose typically leads to symptoms such as Gas, Bloating, Diarrhea or Cramping when dairy products are digested. These symptoms are a result of the body's lack of lactase, an enzyme normally produced by the small intestine that is needed to digest lactose. Milk from certain types of cows have been shown in studies to decrease lactase enzyme production, worsening symptoms. It is important to received Medical Nutrition Therapy recommendations in addition to beginning enzyme therapy available over the counter. 

Fructose Intolerance / Malabsorption:

Fructose can be found in many foods and beverages. Some individuals have digestive issues after ingesting foods / beverages containing this sugar. When the digestive system has difficulty processing fructose, individuals typically complain of symptoms associated with Irritable Bowel Syndrome (IBS). Common symptoms of Fructose Malabsorption or Intolerance may be: Gas, Flatulence, Bloating, Diarrhea, Constipation, Vomiting, Nausea, Stomach Pains. Medical Nutrition Therapy will be provided to aid in avoiding this type of sugar for resolution of symptoms. 


Testing is FREE for Genetic Sucrase-Isomaltase Deficiency. Coverage for other tests varies according to insurance plan. Our lab requires payment up front for testing supplies and laboratory services, however we provide you with a form that you can submit to your insurance for potential reimbursement. The cost per test is $139.

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Tel:  (716)  704-0684  /  Fax:  (716)  625-1236



501 John James Audubon Pkwy, Suite 360

Amherst, NY 14228

Dent Tower, 3980 Sheridan Drive, Suite 401 

Amherst, NY 14226

Sterling Center, 200 Sterling Drive, Suite 201
Orchard Park, NY 14127

Chapin Mansion, 1207 Delaware Avenue, Suite 114

Buffalo NY, 14209



Tricia Sauer, RDN,CDN

(Subject to professional sports seasons)

Audubon Parkway:

Monday: 9:00am-5:30pm

Tuesday:  9:00am-5:30pm

Wednesday: Closed

Thursday: 9:00am-5:30pm

Friday: 9:00am-5:30pm

Noelle DeSantis, MS, RDN, CDN

Dent Tower:

Monday: 8:00am-5:00pm

Tuesday:  8:00am-5:00pm

Wednesday: 8:00am-5:00pm

Thursday: 8:00am-5:00pm

Friday: 8:00am-5:00pm

Erica Smolinski, MS, RDN, CDN

Sterling Center:

Monday: 8:00am-5:00pm

Tuesday:  8:00am-5:00pm

Wednesday: 8:00am-5:00pm

Thursday: 8:00am-5:00pm

Friday: 8:00am-5:00pm

Jenny Arnette, MS, RDN, CDN

Chapin Mansion:

Monday: 8:30am-5:30pm

Tuesday:  8:30am-5:30pm

Wednesday: 8:30am-5:30pm

Thursday: 8:30am-5:30pm

Friday: 8:30am-5:30pm

© 2012 by Tricia E. Sauer, RDN, CDN

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