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Real people who finally got answers. Patient Testimonials

Patients of Dr. Cas, in their own words.

Dr. Cas reviewing results with a patient

Over the years, a number of doctors have told me that I had inflammation. However, no one had ever told me how to get rid of it. Dr. Cas is working with me to reduce inflammation and heal my gut and detox my body on a cellular level.

Ruth Ann, patient of Dr. Cas

From my first visit, Dr. Cas made me feel heard and not alone. I was excited to partner with him in finding answers and solutions. … He’s the first doctor I actually look forward to seeing at my visits.

KaylinMold & toxins · Feeling heard

I feel like I have a new lease on life. Six months ago, I could barely get out of bed. Last week, I hiked and biked 53 miles at high elevations (above 9500′) in Colorado. I’m so grateful for Dr. Cas.

AngieFatigue · Gut health · Mold & toxins

Dr. Cas and his approach are truly unique! I’ve never had a doctor take so much time trying to understand me and my environment.

ChrisGut health · Performance

My quality of life has been greatly enhanced. I am living with less pain and suffering than I have since 2012.

ColeAutoimmune · Skin

My anxiety is greatly reduced and much more manageable. I have a lot more energy to enjoy my daily activities. … He listens to me, and I feel supported and heard in all ways.

LindaHormones · Anxiety · Gut health

I have the energy to truly live and love life without pushing myself through it. … Life is at its best for me thanks to Dr. Cas.

GailThyroid · Gut health · Hormones

Once my food allergies were handled, we tackled my hormone levels with testosterone pellets and I feel so much better than I have in a very long time. … I sleep great. I eat great. I feel great.

RonFood allergies · Hormones

Office visits with him are personal and effortless – more like seeing an old friend than a doctor. … I now spend much less time worrying about my health and focusing on more productive things.

ShaunPrimary care

Dr. Cas’ diagnosis and treatment has considerably lessened my rheumatoid issues. … Going to Dr. Cas has totally changed my health positively.

KenJoints · Rheumatoid

Testimonials are from patients of Dr. Castel Santana, shared in their own words. Individual results vary, and depend on your history, your testing and how closely you follow your plan.

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