Digestive Health

Good digestive health is the corner stone to a healthy immune system and overall health. Too often GI-related symptoms fluctuate and change through time and are easily ignored, leading to health complaints. Digestive problems can be the first sign that other aspects of health are not optimal, and can signal us to pay attention to better nutrition and food absorption. Different conditions can have intersecting symptoms that often look alike and again this is where addressing the individual as a whole makes the largest impact on an individual’s health. Dr. Chang can help you navigate these symptoms through taking a thorough history, ordering appropriate testing and treatments for many functional digestive disorders.


Some common symptoms include:

  • Gas

  • Bloating

  • Stomach cramps

  • Stomach aches

  • Diarrhea

  • Constipation

  • Acid Reflux


Below are some of the conditions that Dr. Chang can test and treat:

  • Leaky gut (intestinal permeability)

  • Food allergies/sensitivities

  • Gluten sensitivity

  • SIBO (small intestinal bacterial overgrowth)

  • H. Pylori

  • Fructose sensitivity

  • Candida/yeast overgrowth

  • Parasites

  • Enzyme deficiencies 

2330 NW Flanders St, suite 101

Portland OR United States 97210

(503) 701-8766

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©2017 by Dr. David Chang ND, LAC