vs Traditional Health Care

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Internal Medicine

Dr. Guillory has been practicing Internal Medicine since 1985.

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Our approach

to patient care works to understand and treat the whole person as opposed to a narrow set of symptoms.

Dr. Gerard Guillory

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So you've healed your leaky gut... now what?

Congratulations!  By completing the leaky gut protocol you have taken an important step in optimizing your health.  Chances are you have seen significant improvements in the past month and are eager to find out what’s next? 

If you want to experience more improvement, consider the following:

Personalized Nutrition Consult

Many of our patients benefit further from a personalized nutrition consult with our clinical nutritionist or health coach. They both realize that change is a process that occurs over time. They work with you each step of the way to create a personalized, sustainable plan that facilitates healing and promotes optimal health. We always encourage you to bring in your significant other, particularly if they do most of the cooking, to maximize the experience. In this way a custom, personalized nutrition plan can be created which takes into account your individual goals, needs, and dietary preferences.

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Who We Are.

Click the button below to get:

  • A Free copy of Dr. Guillory's Guide to Optimal Wellness
  • The Care Group E-Newsletter
  • New Patient Forms
  • Guide to Healing Your Leaky Gut

Dr. Gerard Guillory is a board certified internal medicine specialist who has been practicing in Aurora, Colorado since 1985.  He is a nationally recognized speaker and writer on irritable bowel syndrome.  He strongly believes, as Hippocrates stated some 2000 years ago, that “all disease begins in the gut”.

His clinical focus utilizes a functional/integrative medicine approach which seeks to discover the root cause of the problem.  Unlike the traditional "drug-disease" model which automatically resorts to medication, we attempt to discover why someone is feeling ill and not just the diagnosis.

With each patient a customized evaluation and treatment plan is developed to help achieve optimal wellness.  This approach is patient-centered rather than disease-centered.

  • Integrative Medicine: Holistic health care that works
  • Supplements instead of pharmaceuticals when possible
  • Nutritional counseling and healthy eating
  • Cutting edge diagnostic,functional medicine testing
  • Customized health advice to achieve optimal wellness
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Why Us

  • Dr. Guillory has been practicing Internal Medicine since 1985.
  • Supplements instead of pharmaceuticals when possible.
  • Lab in office.


Sensitivity to monosodium glutamate and aspartame (abdominal pains, bloating)

For 15 years, Neil Wiese regularly experienced abdominal pains and bloating that lasted all day, nearly every day.

"I went through many, many doctors," Wiese says. "I even went as far as the Mayo Clinic. Nobody could figure out what it was."

In 2004, he attended a seminar by Dr. Guillory and, afterward, went to visit the doctor. After conducting tests and ruling out a number of potential causes, Dr. Guillory focused on the possibility that Wiese's digestive problems were related to monosodium glutamate (MSG), a widely used food additive.

Dr. Guillory recommended that Wiese avoid foods containing MSG. In addition, he recommended that Wiese steer clear of the artificial sweetener aspartame as well as high fructose corn syrup, also used as a sweetener.

"I went on the diet and watched everything I ate," Wiese says. "I also kept a diary. And in the course of a month or so, I was better. I have slowly continued getting better for the last couple of years. My life has changed dramatically. It's a miracle for me."

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