We help health-conscious individuals overcome issues such as bad gut, stress, fatigue, brain fog, poor sleep, chronic illness, high A1c, and unhealthy weight.
Dr. Mark has assisted many patients who have seen multiple doctors in regaining their health, mental clarity, physical well-being, and overall vitality by repairing their gut biome with diet, lifestyle, and peptides.
Let Dr. Mark help you look and feel your best once and for all.
All diseases begin in the gut ~ Hippocrates
About Dr. Mark
Dr. Mark received his BS in Neurophysiology from Northwestern University in Chicago, Illinois, then attended the University of Illinois College of Medicine. His internal medicine residency was at Northwestern. In addition, Dr. Mark completed gastroenterology training at Chicago Medical School and medical acupuncture at UCLA (UCLA).
Are You Struggling With Any Of These Symptoms?
Chronic gut issues can manifest in various symptoms:
Bloating, Constipation
& Diarrhea.
Leaky Gut, IBS, SIBO
Food Sensitivities
& Allergies
Inability To Lose Weight
Chronic Fatigue Inflammation
Brain Fog
Candida, Mold &
Stealth Infections
Anxiety, Depression
& Sleep disorder
Covid Long-Haul Recovery
LET’S TREAT THE ROOT CAUSE
Work With The Real Gut Doctor
The Real Gut Doctor, under the leadership of Dr. Jeffrey C.G. Mark, MD, who has received five board certifications, uses cutting-edge technology to help patients regain their health and enhance their quality of life.
The Real Gut Doctor, under the leadership of Dr. Jeffrey C.G. Mark, MD, who has received five board certifications, uses cutting-edge technology to help patients regain their health and enhance their quality of life.
The Real Gut Doctor is a pioneering medical clinic that offers individualized care in regenerative medicine, functional medicine, metabolic medicine, healthy aging, and functional gastroenterology. The cutting-edge clinic provides comprehensive, individualized care to patients in San Ramon, Menlo Park, Turlock, California, Chicago, and Illinois. Patients can access our Telehealth services from anywhere in the world.
Patients are always given various options, including non-drug and minimally invasive procedures and all the information they need to make educated decisions.
Platelet-rich plasma for anti-aging, bio-identical hormone replacement therapy for hormonal imbalances, drug-free options for chronic pain and sleep management, and stress reduction are just a few examples of how we aim to treat the underlying causes of your health problems rather than just the symptoms.
The Real Gut Doctor has the answer if you have a medical question.
Dr. Mark creates tailor-made treatment plans for his patients that consider their unique requirements and preferences while maximizing their chances of a positive clinical outcome.
Pharmaceuticals, nutraceuticals, natural drug-free therapies, peptides, bio-identical hormone replacement therapies, platelet-rich plasma and bio-cellular treatments, energy medicine, and minimally invasive procedures are common components of his patient-centered, science-based approach.
Assessing GI Health Imbalances
Dr. Mark is equipped with various diagnostic and therapeutic methods to address gastrointestinal (GI) dysfunction.
Using the tried-and-true 5R method (Remove, Replace, Reinoculate, Repair, and Rebalance).
In this phase, harmful organisms are eliminated, and toxic, inflammatory, and allergenic foods are avoided.
The conventional method involves adding a prescribed medication to the body. Still, in many cases, the most effective treatment for our gastrointestinal tract involves getting rid of the offending substance and giving the system some time to rest.
Dr. Mark can help you with the subsequent steps of Replace (with digestive aids), Reinoculate (with probiotics), and Repair (with peptides) after the crucial Remove step.
Solve the Root problem
We examine you to identify the underlying causes of your ongoing health issues.
Feel Like Yourself Again
Most people spontaneously restore their energy, attention, and intestinal health within a relatively short period
Experience True Health
Incorporating an integrative strategy into treatment can lead to profound and long-lasting recovery.
All Roads Lead To The Gut
Heal your gut, and heal your body with our comprehensive GUT HEALING PROGRAMME.
Let us show you how to naturally improve your energy, attention, and gut health to help eliminate your digestive troubles.
Step 1:
Schedule an appointment for initial intake and assessment.
Step 2:
Book monthly or quarterly lab testing.
Step 3:
Get Monthly Assessment & Nutrition, Supplements 7 Peptides Plan
Step 4:
Execute 5R Program Monitor Monthly Progress
Step 5:
Follow up with monthly health roadmap
Step 6:
Rebalance the gut, microbiome, cellular health, hormones, nervous system
What our clients are saying
When you work with The Real Gut Doctor, you'll have access to a whole staff focused on your recovery.
Visit us at any one of
our four locations
SAN RAMON, CA
11 Deerwood Road #168
San Ramon,
CA 94583
925-736-9828
OFFICE HOURS:
Monday to Friday – 9am to 5pm
Menlo Park, CA
21 Willow Road
Menlo Park
CA 94025
650-586-3988
OFFICE HOURS:
Monday to Friday – 9am to 5pm
Turlock, CA
2101 Geer Road #118
Turlock, CA 95382
209-668-6020
OFFICE HOURS:
Monday to Friday – 9am to 5pm
Chicago, IL
111 N Wabash Ave Suite 1800
Chicago, IL 60602
312-819-6788
OFFICE HOURS:
Monday to Friday – 9am to 5pm
Telemedicine Services are also available at the following two locations:
Greater Chicago Area
312-819-6788
Big Island, Hawai’i
(808) 756-9189
Nutrition
& Health Blog
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Start Your Health Journey Today
Do you have questions about resuming a healthy lifestyle? To help you decide if our method is right for you, our online patient coordinator is available now to answer any questions you may have.