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Are We A Good Fit?

At The Real Gut Doctor, our #1 priority is to help you finally overcome your chronic wellness issues.

Unlike most conventional medicine practitioners, we look at lifestyle and contributing factors that may have caused your symptoms. Through advanced lab testing, we discover what is causing the imbalances that have kept you stuck in a chronic illness cycle so you can finally break free.

Our Unique Approach

Our Real Gut Doctor Roadmap is a unique approach to help motivated adults in their 40s, 50s and beyond struggling with cardiometabolic, hormonal and digestive issues regain their energy, edge and peak performance so they can enjoy a well-balanced, productive life looking and feeling their absolute best… without extreme lifestyle changes or lifelong dependence on prescription drugs.

We partner with each client to achieve these steps, starting with the Review Phase:

Infographic outlines a 9-step health optimization process
During the intake, we’ll review your past medical history and any previous lab tests, so we can assess symptoms or anything your doctor might have missed.
Next, we'll determine the need for additional lab tests to help pinpoint the real reasons for your gut or hormonal imbalances, which might also include genetic tests and testing for toxins & heavy metals. 
After that, we'll typically evaluate nutritional deficiencies and adjust your diet – switching you to a highly-tailored diet personalized for your health goals or deploying the appropriate supplement protocols to address nutrient depletion and restore immune & mitochondrial function.
The next three steps focus on rebooting and optimizing gut & metabolic function, starting with pathogens & stealth infections that are often at the root of gut dysbiosis. We repair the gut lining to reestablish intestinal integrity so we can lower inflammation and undo the damage caused by things like leaky gut.
Next, we focus on sleep and stress management – by improving sleep hygiene and resetting your internal body clock to further accelerate self-healing. Specifically, we’ll strengthen parasympathetic tone to help you shift from “flight or flight” to “rest and digest” mode – while dialing down inflammatory signals and enhancing mood and focus.
The last step in the Reboot phase is dedicated to optimizing brain performance, memory and peak performance – using tools such as QEEG and neurotransmitter support for balanced mood and focus.
Once we make headway with rebooting gut + metabolic health, sleep, stress & brain health, we’ll turn our attention to rebalancing hormones and promoting longevity & healthy aging.
In the hormone rebalancing step, we provide thyroid and adrenal support to restore energy and improve metabolism. We also cover blood sugar balance and address possible insulin resistance that can keep you from losing weight and feeling energized.
Next, if appropriate, we'll introduce cutting-edge regenerative treatments to speed up the healing process and support cellular regeneration, energy production and weight loss.
The final step of our Real Gut Doctor Health Roadmap focuses on longevity & healthy aging – using a senescence protocol to get rid of “Zombie cells” and further optimize brain function & memory. Together, we explore the things that will help you be unstoppable as you move into each passing decade – anchoring in healthy habits and a mindset & an attitude of continuous improvement.

How It Works

Every client's situation is different, but we always seek to rapidly reduce the severity of your symptoms and then initiate a personalized treatment plan that will completely resolve your remaining symptoms over the course of the next 6-12 months.

15-Min Phone Call

A free 15-minute call with our Patient Care Director to identify the key problems.

Paid Appointment

Paid intake visit with Dr. Mark to review your history, labs and discuss options.

6-12 Month Intensive

Care is delivered over a 6-12 month intensive sprint, with additional follow-up as needed.

The scene suggests a supportive and collaborative moment

Our collaborative care approach focuses on building lifelong health skills that serve you and your entire family – to improve your lifestyle habits which directly impact your health and even emotional well-being.

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You'll learn about health topics around gut health, detox, weight loss, chronic conditions, metabolic syndrome, diabetes, and obesity – and how to adapt your lifestyle, habits and environment for optimal wellness that lasts a lifetime.

Wonder If The Real Gut Doctor Is Right For You?

Every client's health journey is unique, so if you'd like to explore specific questions or whether our approach is even right for you, then apply for your free discovery call. Our patient coordinator is standing by, happy to answer any questions you have.


Our Packages

Elite Membership

Includes one 15-minute monthly functional and regenerative telehealth visit and other benefits Full details given with application. (Limited availability)
Disclaimer: Prices are subject to change and may not be always reflected online.
per month
Review labs & past medical history
Explore current health challenges & goals
Determine need for advanced lab tests
Craft a personalized treatment approach
Prioritize fast symptom relief
Customize supplement plan (supplements & nutritional IVs available as a discounted rate)
Lifestyle, nutrition, meditation/relaxation, exercise program provided via patient links or portal access
Labs, radiology, hormones, etc are sold separately
Additional visits at discounted rate

Platinum Membership (Most popular)

Includes one 25-minute monthly functional and regenerative telehealth visit and other benefits (Full details given with application)
Disclaimer: Prices are subject to change and may not be always reflected online.
per month
Review labs & past medical history
Explore current health challenges & goals
Craft a personalized treatment program
Access to advanced testing (additional cost)
Prioritize fast symptom relief
Customize supplement plan (supplements & nutritional IVs available at discounted rate)
Lifestyle, nutrition, meditation/relaxation, exercise program provided via patient links or portal access
Labs, radiology, & hormones are sold separately
Additional visits available at discounted rate

Diamond Membership

Includes up to three 25-minute monthly functional, regenerative, longevity telehealth visit & other benefits Full details given with application. (Limited availability) 
Disclaimer: Prices are subject to change and may not be always reflected online.


per month
Craft a personalized treatment program
Review labs & past medical history
Annual comprehensive executive physical, interpreting genetic testing and biomarkers for longevity (additional cost)
Lifestyle, nutrition, meditation/relaxation, exercise program provided via patient links or portal access
Senescence and longevity protocol (additional cost)
Advanced state-of-the-art longevity treatments, PRP, FSM, AWT, peptides, exosomes, and other advanced treatments (additional cost)
Explore current health challenges & goals
Brain Health Protocol
Gut Health Protocol
Heart Health Protocol
Immune Health Protocol
Brain Health Protocol
Access to advanced testing (additional cost)
Prioritize fast symptom relief
Customize supplement plan (supplements available as discounted cost)
Prioritize fast symptom relief
Wellness, vitamin and peptide injections at discounted rate


  • A woman with curly hair, wearing a blue top, smiles warmly.

    My mother had brain surgery 4 years ago and ever since then, it's been a battle to find her a specialist who can recommend supplements that can help her heal without prescription drugs. We made a functional medicine appointment for her with Dr. Mark and he immediately knew what to recommend for her. This is the first time in 4 years that my mother did not have a bad reaction to the new supplements she tried and she actually says that she feels better when she takes them. For my family, this is great because it's one step closer to helping her body heal without prescription drugs and this has been a 4-year battle. I just stocked up on supplements for her actually. It's the perfect combination. This place has its own supplement line which is awesome!

    Sweeta B.
    San Ramon, CA
    A patient since 2020-currently
  • A man with short gray hair is smiling and looking slightly.

    Over the years I've visited many medical practices, with varying approaches to getting to the source of the health problem, vs. those that only treat the symptom without addressing the causes (i.e. Hospitals, Kaiser, etc... ) Dr. Jeffrey Mark and Dr. Fran are by far the most knowledgeable, smart, and technologically forward-thinking practicing practitioners in the Bay Area. They use so many state-of-the-art tools. They're constantly going to conferences to learn about all the emerging ways to really help people to be healthy; much more so than most doctors. They really know how to interpret lab values - using cutting-edge, sophisticated lab analytics - to determine all the contributing factors involved- to come up with a very complete and comprehensive way to not only fix my health problems and symptoms but also get to the root of why and all the contributing elements to the problem. I am so pleased and happy with trusting my health with everyone at All Functional Health. Every visit I feel like they truly care about helping me get better.

    Robin O.
    San Francisco, CA
  • A woman with straight brown hair and bangs smiles .

    I'm so incredibly impressed with his Dr. Mark’s attention to detail and efforts to really get to the root cause of what was wrong. He's careful to take time with each patient and really listens to what is going on. Then he carefully decides the action plan, carefully selects the types of tests he needs to run to identify the root of the problem, and utilizes the information to get his patients well from the inside out. You can tell he genuinely cares about his patients and deep down he IS genuinely a good person. So many other GI doctors just want to prescribe their patient's many medications to cover up the problems. Dr. Mark really wants to get you better! And the staff is always friendly and helpful. They go above and beyond for their patients and it makes a world of difference! Thank you!!!

    Kate P.
    San Carlos, CA
    A patient since 2019-currently
  • A bald man with a gray beard and mustache smiles broadly.

    I needed a new gastroenterologist to help manage my ulcerative colitis. I've seen Dr. Mark twice and he is one of the best M.D.s I've ever seen. He has suggested tests Dr. Lane never imagined to better titrate my meds and manage my disease. He is very smart, and upbeat and seems to take a personal interest in making sure my UC doesn't flare up and that the Side Effects of my medications are managed appropriately. Dr. Mark has taken a more holistic approach to my UC and suggested some dietary restrictions. They have worked miraculously and I am now off prednisone for longer than I have been in the past 8 years. I highly recommend him.

    Mike K.
    Walnut Creek, CA
    A patient since 2016-currently

Take The First Step Today On Your Journey Back To Health

Do you have questions about starting your path back to health? Our patient coordinator is standing by, happy to answer any questions you have to determine if our approach is right for you.


About The Real Gut Doctor

Known for his successful approach towards chronic digestive and wellness issues, Dr. Jeffrey Mark, M.D. and his team at The Real Gut Doctor combine an integrative, functional medicine approach informed by advanced lab testing.

Our unique approach to diagnosing and resolving chronic health issues recognizes that lasting health depends on resolving the underlying root causes of your symptoms. Click here to learn more »

Your Next Steps

After you have reviewed the information on our website and in our downloadable guides, we’d love to hear from you – to answer more specific questions about our approach and track record. Simply apply for a free discovery call with our patient coordinator at (925) 736-9828 or via our online appointment scheduler.

Areas Served

The Real Gut Doctor is based in San Ramon and Turlock, CA, and serves patients internationally as well as throughout the Bay Area and California. These areas include but are not limited to Palo Alto, Menlo Park, Atherton, Los Altos, Woodside, Portola Valley, Los Gatos, Hillsborough, Burlingame, Carmel Valley, San Francisco, Pacific Heights, Presidio, Marina, Danville, Blackhawk, Diablo, Pleasanton, Alamo, Walnut Creek, Lafayette, Orinda, Piedmont, Berkeley, Marin County, Santa Clara County, Napa Valley, Sonoma, Oakdale, Sacramento County, Lake Tahoe/Incline, etc.

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