The Modern GI Problem

Why So Many People Are Struggling With Digestive Health — And Not Getting Answers

What a person puts into their body determines whether it has the raw materials needed to produce the hormones, enzymes, minerals, and vitamins that keep cells healthy. When the body receives processed foods, chemical additives, and refined ingredients it cannot readily use, the gastrointestinal system — including the liver — may come under significant strain.

Over time, that strain may contribute to a range of digestive and systemic concerns that conventional medicine struggles to fully explain. Our functional medicine dr explores what may be driving those concerns at the root level.

The Gut Connection

What Chronic Digestive Strain May Be Doing to the Body

The gastrointestinal system houses the majority of the body’s immune tissue and maintains a delicate microbiome balance that affects health well beyond digestion. When that balance is disrupted, patterns may emerge gradually — until bloating, discomfort, and irregular bowel habits become a patient’s normal.

Common experiences patients describe may include:

Constipation or chronic diarrhea
Bloating, gas, and abdominal discomfort after eating
Leaky gut patterns and food sensitivities
Skin rashes or allergic reactions with a possible GI connection
Sugar cravings and unexplained weight changes
GERD and reflux symptoms that return despite medication

The Gap in Conventional GI Care

When Your Doctor Says Everything Looks Normal

Many patients have already been through the conventional gastroenterology workup. They have had colonoscopies, endoscopies, and standard stool testing. They have a diagnosis — IBS, GERD, or inflammatory bowel disease — and have been told their results were otherwise unremarkable.

For many of those patients, that answer does not feel complete. They know something has changed. They just have not found a provider willing to look at why.

That is the gap Functional Medicine of Houston was built to explore.

The Functional Medicine Approach to GI Health

A Root-Cause Approach to Digestive Health Concerns

Functional Medicine of Houston does not treat gastrointestinal conditions. What the practice does is look for the underlying physiological factors that may be contributing to a patient’s digestive concerns — and build a protocol designed to support the body’s natural ability to maintain GI balance.

That process begins with a thorough intake. Dr. Stowe reviews digestive history, prior diagnoses, medication history, and dietary patterns. From there, advanced laboratory testing may help identify specific patterns worth exploring.

What Testing May Reveal

Depending on what a patient’s history and intake suggest, functional medicine testing in this area may explore:

Gut microbiome composition and bacterial diversity
SIBO — small intestinal bacterial overgrowth
Intestinal permeability — leaky gut patterns
Food sensitivity and food allergy markers — IgG, IgA, and IgG4, C3d
Digestive enzyme activity and nutrient status
Inflammatory markers and environmental toxin burden

The goal is a more complete picture of what may be contributing — not a one-size-fits-all answer.

Functional Medicine of Houston does not diagnose, treat, cure, or prevent any disease or medical condition. Services are intended to support the body’s natural processes and are not a substitute for care from a licensed primary care provider.

Meet Dr. Bobbie Stowe

Meet Dr. Bobbie Stowe — Functional Medicine Doctor in Texas

Dr. Bobbie Stowe has been supporting patients in pursuing better health for over 15 years. Dr. Stowe has seen firsthand how many patients struggling with chronic digestive concerns have cycled through the conventional system without finding meaningful answers — and how a deeper look at the underlying physiology can change that conversation entirely.

Dr. Stowe’s approach is grounded in advanced laboratory testing and personalized protocols built around each patient’s own data. Dr. Stowe works with patients across all of Texas through a 100% telemedicine model.

Learn More About the Practice

How It Works

What to Expect When Working With Functional Medicine of Houston

Consultation Dr. Stowe reviews the patient’s digestive history, current concerns, and any prior diagnostic records before recommending a testing approach.

Health Questionnaire Completed before the first appointment, this gives the practice a full picture of the patient’s history, symptoms, and timeline before the visit begins.

Advanced Laboratory Testing Panels are selected based on the patient’s specific situation and interpreted through an optimal-range framework — not simply flagged as high or low.

Personalized Protocol Results guide a protocol built around the patient’s own data, lifestyle, and health goals — not a general treatment guideline.

Request a Free Consultation

WHY GI PATIENTS CHOOSE FUNCTIONAL MEDICINE OF HOUSTON

Most patients who reach out have already spent significant time in the conventional system. They have seen specialists. They have tried medications. Their labs keep coming back normal. And they are still not feeling well.

What sets Functional Medicine of Houston apart is not a different opinion — it is a different process. Dr. Stowe starts with the patient’s data. Every testing recommendation, every protocol decision, and every follow-up adjustment is grounded in what the patient’s own laboratory results reveal.

What patients can expect:

Advanced laboratory testing beyond the standard panel
Results interpreted through an optimal-range lens
A personalized protocol built around your data and your lifestyle
100% telemedicine access from anywhere in Texas
A cash-pay model with no third-party restrictions on care

Success Stories

Patients Who Started Getting Answers

Real patients. Real experiences. Functional Medicine of Houston’s success stories come from patients who had been told their labs were normal, their symptoms were stress-related, and their only option was another prescription.

Their experiences reflect what becomes possible when the right questions get asked — and the right tests get run.

    
 
 
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   Dani C Simmons 
 593 days ago
 
 
 Trustindex verifies that the original source of the review is Google. I cannot say enough great things about Dr. Bobbie Stowe and Functional Medicine of Houston! After struggling with both physical and mental health issues for over 10 years, I finally found someone who truly listened to my concerns and took the time to understand my needs. Dr. Stowe has been incredibly kind, attentive, and thorough in addressing the root causes of my health challenges.

I’m only three months into my treatment, but I already feel 95% better—something I never thought would be possible. My energy levels, mental clarity, and overall well-being have improved tremendously, and for the first time in years, I feel hopeful about a new way of living. The quality of care I’ve received here has been life-changing, and I highly recommend Dr. Stowe to anyone looking for a compassionate and knowledgeable provider who truly wants to help you heal!
  
 
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   Carolyn Sims 
 594 days ago
 
 
 Trustindex verifies that the original source of the review is Google. I have been working with Dr. Stowe for almost 2 years.
My results have been amazing. I sought him out due to an extremely hyperactive thyroid. I was very, very sick. He set me up for quite a few tests and the results came back showing that I had a VERY leaky gut. Leaky gut can lead to many health issues, many of which are debilitating, as mine were. My thyroid numbers are now fine, my leaky gut is all but nonexistent and I feel 1000 times better. I cannot thank Dr. Stowe enough, really. I am extremely pleased with the results. He is very easy to work with. Very knowledgeable and can explain complex things in an easy to understand way. I have learned a lot. I have healed a lot. I am very thankful for his help.
  
 
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   Ivan Medina 
 1060 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Dr. Stowe’s treatment has been great. I am making progress and feeling much better every time. Even other areas of my health, which were not necessarily the intended target of my treatment improved as well! My digestive system and skin feel much healthier since I started the protocols. Dr. Stowe and his staff are always there when I have questions or concerns.
  
 
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   Heena Kalra 
 1863 days ago
 
 
 Trustindex verifies that the original source of the review is Google. I am writing this review because I genuinely feel that people need to think beyond the traditional medication system and listen to their body by getting it correctly analyzes. I happened to found Dr Stowe after a bit of struggle on hyperthyroidism which was detected as graves disease all of a sudden after  just a little less than 2years of my first child's delivery. This was a shock and my TSH was negative less than 0.006. after alot research on internet and being from indian origin I was more interested in alternative medicine or naturopathy  or yoga to help me.   I am thankful that I found Dr.Stowe, he helped me bring my thyroid back to normal in 4-5months. His treatment must be followed he stresses that, they gave me very exceptional support with all my queries on email as due to pandemic I couldn't visit him. The cost of treatment is high, but Dr.Stowe does let you get a super bill for your out of pocket or out of network expense to claim on insurance and also let's u get some tests done at local LabCorp etc, what ever is best and permissible. His appointments are very detailed and he spends time with you writing and guiding each thing.
  
 
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   Sarah Cook 
 1982 days ago
 
 
 Trustindex verifies that the original source of the review is Google. I came to Dr. Stowe with a lot going on. He took his time, was thorough and really helped unpack ALL The THINGS! I had seen several doctors about my symptoms with not luck in getting to the root cause! I am beyond thankful for his work and how it has impacted me! It is worth the investment to get down to the bottom of whatever is going on!
  
 
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   Natalia Perez 
 2154 days ago
 
 
 Trustindex verifies that the original source of the review is Google. I suffered from frequent migraines for almost 20 years and for the last few years they started getting worse and more frequent.
They were so frequent that my life started changing. I was in the ER several times and I was absent from my job for many days.
I needed to lay down for days and I couldn’t have a normal life.
I was desperate and looking for help in order to have a better quality of life.
I tried the doctors my insurance covered. I tried diets, exercise, natural and homeopathic ways and I didn’t get the results.
I heard about functional medicine a year ago and I started looking for a doctor in Houston.  Happily, I found Dr. Stowe.
I started with the tests and then the treatment.  I saw results immediately. My migraines started going down and my digestion improved. My energy levels increased, and I started having more hope every day.
After I tried so many things, I finally found the correct treatment in order to have a better QUALITY of life, and it doesn’t have a price.
  
 
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   Katherine Healy 
 2283 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Dr. Stowe helped me figure out the root cause of my chronic infections and suppressed immune system. While the testing and supplements were a significant out-of-pocket expense, the investment in my health was well worth it. I am now off of prescription medications and feel better than ever.
  
 
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   Charity Haynes 
 2302 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Dr. Stowe has helped me tremendously with digestive issues. His protocol has helped me to feel so much better. He is super knowledgeable and knows how to heal the body naturally. He helped improve my immune system, identify foods to avoid, and I no longer have vitamin deficiencies. The investment in your health is well worth it. I highly recommend him.
  
 
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   Tiffany Yao 
 2328 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Dr. Stowe and the people who work in his office are all very professional and respectful. The cost of treatment is always communicated openly and upfront so there are no surprise bills. I came to Dr. Stowe in March with very severe eczema and thyroid problems. When I followed his treatment protocol, most of my symptoms went away in a month and a half. I still have some ways to go, but I already feel so much better and my quality of life has improved greatly. Dr. Stowe spent a few hours with me during the first appointment to figure out the root of my problems and created a customized plan to get me off of my prescription meds for good. If you have any chronic disorders, I highly recommend giving functional medicine a try.
  
 
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   Margaryta Dema 
 2405 days ago
 
 
 Trustindex verifies that the original source of the review is Google. The most attentive, careful and helpful doctor! Dr. Stowe helped me to deal with a lot of health concerns I had prior to our meeting and restored my energy level. Now I am full of energy, healthy and happy young woman thanks to the doctor!
  
 
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   Melani Lindsey 
 2596 days ago
 
 
 Trustindex verifies that the original source of the review is Google. After consulting with an endocrinologist who insisted I had Graves’ disease and said my only option was radioactive iodine, I sought other options. I did not feel enough testing had been done and my current life situation of considerable stress taken into account. I felt this was an aggressive and uneducated approach to my symptoms.
I reached out to Dr Stowe as I was driving from Houston to North of the Woodlands. He stayed on the phone with me for 45 minutes and asked a ton of questions. By the end of the phone call he had a better grasp of the whole picture than the endocrinologist was even interested in. We began addressing adrenal concerns and ran some very in depth testing. That was 8 months ago. I am 90% better with all my symptoms corrected. I appreciate Dr Stowe interest, but mostly his efforts in digging into symptoms and addressing things that were overlooked by my other physician. I’m thankful I resisted the supposed fast cure of destroying my thyroid permanently, and possibly resolving nothing.
  
 
     Posted on Google  
   
   Michelle ONeill 
 2647 days ago
 
 
 Trustindex verifies that the original source of the review is Google. 
  
 
     Posted on Google  
   
   Candice Skorka 
 2815 days ago
 
 
 Trustindex verifies that the original source of the review is Google. Dr Stowe has truly changed my life in a way other doctors could not.  I was very ill for 5 yrs and all the doctors I previously saw were not treating or healing the underlying problem.  I got up the courage to find a new doctor and came across Dr. Stowe.
After just a few weeks on his protocol I’m a new person and see light at the end of the tunnel.  I’m confident with his help I’ll be totally transformed in a few months which is what I’ve been desperately wanting for years!  I would highly recommend him to anyone with health struggles.  He has been a life saver.
  
 
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   Stan Kazwell Jr. 
 2872 days ago
 
 
 Trustindex verifies that the original source of the review is Google. My biggest regret is that I did not meet Dr. Stowe years ago.  After decades of decline, the dogma of “modern medicine” was failing me, leaving my longevity in doubt.
Fortunately, my wife, (an R.N.) was not as accepting of her deeply depressed husband’s  decline.   As a matter of last resort, we turned to Dr. Stowe and functional medicine.  While I was somewhat hopeful, I knew, deep down, how this would end.  Nonetheless, Dr. Stowe’s dogged determination, and my wife’s embracement of his protocols, have given me back my life.  Instead of treating my layers of diagnoses, Dr. Stowe treated me as an individual.
I will warn you, this science based approach of functional medicine will likely be mocked by your physicians.  The next time you see them, however, they will probably have forgotten that you even mentioned it.  Instead, they will either pat themselves on the back or just plain be dumbfounded.  Such is my experience.
If I found Dr. Stowe and functional medicine years ago, I know I would be much healthier today.  Still, I am so please because I have improved beyond what I could have hoped to be possible.  I have a life again.  Thank you very much, Dr. Stowe.
Stanley Kazwell, Jr.
  
 
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   pf camp 
 2875 days ago
 
 
 Trustindex verifies that the original source of the review is Google. While exploring options to remedy extended fatigue, low stamina, difficulty focusing, and overall anxiety / restlessness, I was referred to Dr. Stowe.  He is consistently well-researched, forthright, and driven to the solutions which help the body heal itself (v. endless return visits).  His protocols are based on the analysis of any prescribed lab work and the supplements proven to adjust any deficiencies.   After 8-10 weeks, even friends have noticed my significant increase in overall vitality.  I highly recommend Dr. Stowe force a reasoned, practical, EFFECTIVE solution.  One of the best health decisions I have made.  (A bonus is his office environment is pleasant and professional.)
  
 
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   Shannon M 
 2896 days ago
 
 
 Trustindex verifies that the original source of the review is Google. I suffered with migraines for 30 years.  Dr. Stowe is the only doctor that could get rid of my migraines and I have gone to numerous neurologist that would just prescribe me migraine medication, which just put a band-aid on the problem.  These neurologist did not fix the problem; Dr. Stowe fixed the problem.  It is a process, but if you stick with the process you will get your body in better shape than you have ever been and feel great.  Dr. Stowe has always been great in returning my phone calls and texts in a timely manner.

Read Patient Stories

FAQ

Frequently Asked Questions

Can a functional medicine doctor help with IBS?

Functional Medicine of Houston does not treat IBS. What the practice does is look for underlying physiological factors — such as SIBO, dysbiosis, and food sensitivities — that may be contributing to a patient’s digestive concerns.

What is leaky gut?

Leaky gut, sometimes called intestinal permeability, describes a pattern in which the gut lining may become more permeable than typical. Functional medicine testing may help explore whether this pattern is a relevant contributing factor.

What is SIBO?

SIBO describes a pattern in which bacteria may be present in excessive quantities in the small intestine — a pattern that may be a contributing factor in bloating, gas, and abdominal discomfort that standard care does not always evaluate. Took out

Why do I still have symptoms if my colonoscopy was normal?

A colonoscopy evaluates structural integrity — not gut microbiome composition, food sensitivities, SIBO, or intestinal permeability. Functional medicine testing explores these areas as part of a more complete GI evaluation.

What is the connection between gut health and skin concerns?

The tissue lining the GI system and the skin share a similar cellular origin. Patterns affecting the gut lining may be associated with immune responses that some patients experience as skin reactions. Functional medicine explores these connections when a patient’s history suggests they may be relevant.

Can functional medicine explore GERD

Yes. Functional medicine explores a broader range of contributing factors than conventional treatment typically evaluates — including whether insufficient stomach acid rather than excess acid may be a relevant factor, particularly in patients over 50.

What about unexplained weight changes?

Weight gain despite appropriate dietary and lifestyle efforts may involve adrenal function patterns, thyroid markers, and GI system factors. Unexplained weight loss warrants primary care evaluation first — functional medicine may explore contributing factors once known medical causes have been ruled out.

Do I need to stop my current medications?

No. Functional Medicine of Houston does not advise patients to discontinue any prescribed medications without first consulting the physician who prescribed them.

Does the practice accept insurance?

No. Functional Medicine of Houston operates on a cash-pay basis. This allows Dr. Stowe to order the specific tests a patient’s situation warrants without third-party restrictions on coverage.

How do I get started?

The first step is requesting a consultation through the website or by calling (713) 667-6656. Functional Medicine of Houston is currently accepting new patients across all of Texas.

Ready to Work With a Functional Medicine Doctor in Texas?

Functional Medicine of Houston is currently accepting new patients across Texas. The first step is a free consultation with a Functional Medicine Practitioner. — a conversation about your health history, what you have already tried, and what testing may help reveal.

Request an Appointment Call (713) 667-6656

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