20 Years of Experience Providing Real Thyroid Solutions
NW Functional Thyroid Clinic


4926 SE Woodstock Blvd
Portland, OR 97206

Clinic Hours

M, W, Th: 9 AM – 6 PM
Tu: 9 AM – 12 PM


Digestive Disorders

Find answers and get results to your digestive problems with Dr. Soszka’s innovative holistic approach to diagnosing and treating gastrointestinal complaints of just about every type. After nearly 20 years of experience, Dr. Soszka has seen and treated just about every type of digestive disorder. 

Dr. Soszka has helped thousands of patients overcome many digestive diseases and disorders. He has extensive training in functional gastroenterology, has taught gastroenterology at the National University of Natural Medicine, and is a member (and a founding board member) of the Gastroenterology Association of Naturopathic Physicians. Dr. Soszka stays current on the latest advancements of functional and conventional gastroenterology.

Dr. Soszka Treats These Digestive Disorders

  • Irritable Bowel Syndrome
  • Inflammatory Bowel Disease (Crohn’s Disease & Ulcerative Colitis)
  • Small Intestinal Bacterial Overgrowth (SIBO)
  • Sluggish Bowels
  • Celiac Disease & Gluten Sensitivity Support
  • Parasites and Dysbiosis Elimination
  • Intestinal Permeability (Leaky Gut Syndrome)
  • And many more.

Learn more about Dr. Soszka’s diagnostic and treatment approach by clicking on the sections below. Finding the underlying cause of digestive problems can be challenging. However, combining the latest in digestive diagnostic tools with evidence-based functional medicine treatments provides excellent results.

Digestive Disorder Testing

Dr. Soszka uses the most advanced functional digestive testing available. Through functional stool, blood, and breath testing, we can uncover hidden infections in your gut and determine how well your digestive system is working. This method of testing is vastly superior to stool and breath tests offered by local commercial labs. These tests help uncover the root cause of digestive problems that most GI specialists miss.

Common Digestive Tests Used by Dr. Soszka


This advanced stool test uses genetic markers to identify any organisms that can cause digestive problems. This includes bacteria, viruses, parasites, and worms. Since the test uses genetics to identify these foreign invaders, a single stool sample is needed. This is vastly superior to standard stool tests that rely on manual detection, which is subject to error and to some degree luck. Additionally, the GI-Map test measures important digestive markers in the sample to help identify any breakdowns in normal digestive function including pancreatic enzyme production, gut inflammation, hidden GI bleeding, intestinal permeability and gluten sensitivity.


This test detects bacterial infections of the small intestine. Normally free of any organism, when an overgrowth of even normal, healthy microbes occurs, symptoms of bloating, gas, constipation or diarrhea often occur. Even worse, nutrient deficiencies begin to occur as this infection is now competing with you for the food you eat. The breath test detects the gas produced by the bacteria and identifies where in the small intestine the infection is occurring. This helps guide the treatment and eradication of the overgrowth.


As part of the organic acids panel, this urine test identifies the toxic waste products produced bacterial and yeast. This reveals how much a digestive tract infection is affecting the rest of the body as these toxins circulate in the bloodstream. Another benefit of the organic acids panel is discovering vitamin, mineral, and other nutrient deficiencies occurring at the cellular level. This is one of my favorite tests as it reveals exactly how well the body is functioning.


Discovering which foods are triggering immune responses in your body is important if you truly want to improve your health. Most are aware of foods that trigger strong (anaphylactic) responses, but low-level IgE allergies can cause immediate symptoms that can impact your quality of life. Food sensitivities (IgG reaction) can cause delayed symptoms. For instance, you eat peaches on Monday and have a migraine on Wednesday. A majority of food sensitivities are caused by intestinal permeability, which brings us to our next test. 


The absorption of food occurs in the inner lining of the small intestine. The cells along this inner surface are tightly linked together to prevent anything passing into the bloodstream. Unfortunately, many medications, chronic stress, gut infections, and poor food choices can cause spaces to open between the cells and allow foreign particles (including food) to enter into the bloodstream and trigger a massive immune response. Known as intestinal permeability in the medical community, it's more commonly known as "leaky gut syndrome". This test is very important with any form of autoimmune disease and chronic digestive symptoms.

Digestive Disorder Treatments

Treatment of digestive problems is customized to meet the needs of the patient. However, there are five key principles for treating digestive conditions that guide the creation of most treatment plans. These principles, commonly referred to as the "5 Rs", are remove, replace, reinoculate, repair, and rebalance. 

Following these principles in sequence helps restore normal digestive function. The effects can be far-reaching as many systemic diseases have their triggers in an unhealthy gut. One of the foundations of naturopathic and functional medical philosophy is to heal the gut first, as a healthy digestive tract can help restore the rest of the body. 


The first step is to remove anything that negatively impacts the digestive tract. This may include finding and eliminating allergic foods, parasitic infections, bacterial, viral, or yeast overgrowth. 


This second step focuses on addressing deficiencies of normal digestive secretions that are key for digesting food. This can include hydrochloric (stomach) acid, pancreatic enzymes, and bile acids. A lack of one or more of these can cause a host of digestive and system-wide health problems. 


Once any infections are removed, the digestive tract is now ready to rebuild a healthy gut flora. Using probiotic foods or supplements containing "good" bacteria a healthy, balanced intestinal microflora can be re-established. While probiotic bacteria species such as lactobacillus and bifidobacteria are important, there is a multitude of bacteria that make up a healthy gut ecosystem. The key is to find ways to provide food for the helpful bacteria while keeping the opportunistic species at bay.


Repairing the gut lining is another important step in restoring normal digestive function. Breaks in the barrier of the intestines allow food, microbes, and other particles deep into the gut tissues and even into the blood stream. The immune system response by going into a frenzy and can result in autoimmune conditions, food allergies, and many other health disorders. 


The final step focuses on establishing lifestyle changes the help maintain the health improvements in the previous steps. Key elements include a healthy, sustainable diet, adequate sleep, and exercise. As simple as this sounds, many have trouble keeping up with the final step. Dr. Soszka has developed methods to help ensure ongoing success.

Are you ready to find real answers to your health problems?