Meet Dr. John W. Jung
Top 5% searched
in Functional Medicine
Multi-disciplinary Functional Medicine
MS, DC, FIAMA, FACMUAP
Traumatic Brain Injury (TBI)—whether from a fall, accident, or sports impact—can change everything in an instant. What you do in the first hours and days after the injury can shape the entire recovery journey.
"TBI: What to Do Immediately After" is the ONLY resource that combines documented neurological protocols with nutrition-based strategies to help stop the progression of chronic TBI and concussion symptoms.
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🚨 1. Act Fast—Every Minute Counts
Recognize the signs of TBI early:
• Headache, dizziness, nausea
• Confusion or memory loss
• Slurred speech or vision changes
• Loss of consciousness (even briefly)
Immediate medical evaluation is critical. The book emphasizes: “Time is brain—delay is damage.”
🧠2. Support the Brain Neurologically
This book outlines specific neurological and dietary interventions that must be used to stabilize brain function and reduce inflammation.
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🧠3. Even if its a FOOTBALL injury ,fall or car accident, 1/3 of people will not recover. Don't let your loved ones suffer....You need this book!
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Functional medicine is a **patient-centered approach** to healthcare that focuses on identifying and addressing the root causes of chronic illnesses. Unlike traditional medicine, which often treats symptoms, functional medicine looks at the whole person—considering factors like nutrition, lifestyle, genetics, and environmental influences—to create a personalized treatment plan. Why do you have a problem, and why won't it go away? This is the BEST way to get better.
It's truly disheartening to see people suffer for years without finding relief. Functional medicine aims to change that by spending more time with patients to understand their unique health challenges and working collaboratively to develop effective, long-term solutions.
We use out of the box thinking, and can order test your many other doctors have missed, or won't do because of insurance constraints, being to specialized to see the BIG PICTURE.
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What is epigenetics?
Epigenetics involves changes in gene activity that don’t alter the DNA sequence. Essentially, it’s how external factors can affect which genes are active and to what extent. Epigenetic markers, like DNA methylation, help us understand these changes.
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What is biological age?
Biological age measures your body’s cellular and molecular age, which can differ from your actual age. It can change due to lifestyle choices, health factors, and other influences. Measuring biological age through methylation is highly accurate and predictive of future health, disease risk, and even lifespan.
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If you're tired looking in the mirror, and wondering if you can ever get your life back,
isn't it worth reaching out one last time to see if help is available? We only take clients we know will get the best results, based on 35 years of experience, and through all the new testing available.
I hope you reach out soon.
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Dr. Jung and Staff
available on Amazon.com
The gut and brain are intimately connected through the vagus nerve, which means stress can directly affect your digestive system. Chronic stress can shift the balance of gut bacteria, increase inflammation, and compromise digestion. On the flip side, an imbalanced gut can worsen stress and anxiety, creating a vicious cycle. This is why managing stress and nurturing your gut simultaneously is essential for overall well-being. If this isnt fixed first, nothing can help you! Find out why here!
Testimonials
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I am so grateful that I listen to a friend who suggested I go to Dr. Jung. I have been his patient now for over 20 years. he has helped me when no other doctors could. I've had numerous issues over the past 20 years that he was able to fix. Recently he started me on a new treatment for my asthma, which is working awesome. I’ve had asthma for over 50 years and my breathing has never been better. He's always researching new things to help his clients and he stays current on new treatments. He is an amazing doctor with a wealth of knowledge. Thank you Dr. J
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Dr.Jung is the absolute best! I’ve been a patient for many many years …. From getting adjustments, helping me with work related aches & pains… & checking my blood work/hormones for thyroid issues…. Has helped me feel back to normal !!!
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I have known Dr John for many years now, and he is very smart and caring, and I have sent him many clients. His Thrive in 45 Program has helped many of us get though this covid pandemic, and auto immune issues as well. Highly recommended.
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Dr. John Jung is very educated, helpful, caring, and has the best sense of humor that will brighten your day every time you see him! Very friendly and positive atmosphere in the office every time i visit.
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Dr. Jung is most knowledgeable in many areas for treatment needs. He can find and explain about sources of pain- physical and emotional. His knowledge expands to supplements, stretches and exercises to strengthen, the human body in entirety, and alternative means of healing. Most comforting about seeing Dr. Jung are his personable ways and sense of humor. Highly recommend!
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Dr. Jung is an AMAZING doctor. I am so thankful that I was referred to him!! At first I was a little skeptical about going to him at first, because I have been to numerous doctors and specialists over the past couple years without any relief! Most doctors ran the same unnecessary tests and just gave me pills to EASE symptoms, which ended up hurting my body even more.. The previous doctors told me my results were normal, even though I did not feel like myself. It wasn’t until I met Dr. Jung’s online that my life changed.
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Dr. John is an exceptional physician who transformed my life when I needed it most. After years of struggling with anxiety and depression, I felt dismissed and hopeless—until I met him. Dr. John was the first doctor to truly listen without judgment, dedicating time to understand my unique challenges. His expertise in mental health is unmatched, but what sets him apart is his genuine compassion and availability. He provided not only evidence-based treatments but also practical tools I still use daily. Whether through medication adjustments, therapy techniques, or simply being a steady presence during crises, Dr. John treated me as a whole person, not just a diagnosis. His dedication gave me hope when I thought recovery was impossible. If you’re seeking a doctor who combines deep knowledge with unwavering empathy, Dr. John is the one. He’s a rare gem in healthcare, and I’m forever grateful for the life he helped me rebuild. Highly recommend to anyone battling anxiety, depression read less. E.F on Healthgrades
My family and I have trusted Dr. John for nearly 25 years. He is my go to for everything when I am at a loss for what to do, especially when it comes to my kids. His knowledge of functional medicine and autoimmune diseases is exemplary. No matter what the issue he will either know the answer right away, or he will work until he finds the answer. Not only in medicine, but for our chiropractic/acupuncture care he will almost always get things corrected in 1 visit, from back, neck, hip and shoulder pains, to treating my daughter. Al Gozzola on Healthgrades
Over 35 years ago I injured my back. After a week hospital stay I saw 4 different chiropractors over a period of time. They all seemed to want to prolong their treatment and the cost thereof. For over the last 30 years I have been seeing Dr Jung. He got me functional again within several visits. Now I see him only on a maintenance basis. Knowledgable, caring & a down to earth guy. Thanks for the great care Doc! Sandra Blucher on Healthgrades
I am a very active healthy person but two times I’ve had physical problems. The first was diagnosed by Dr. Jung as a frozen shoulder. He treated me for several weeks and opened it up for me. The second was a painful pinched sciatic nerve. Dr. Jung brought me relief on the first visit. I’m still going to the office for bi- weekly adjustments and therapeutic messages. I feel wonderful. Thank you so much Dr. Jung. DrBarbara Reed on Healthgrades
My first visit was inviting encouraging and welcoming. Afterwards I not only felt I could do this,, I, KNEW I could accomplish my goals from healing back to excellence in health. Thank you Doc . Tricia on Healthgrades
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Dr. Jung is not only an amazing chiropractor, but one of the BEST functional medicine providers around. He has helped me with autoimmune issues in the past and most recently a hormonal imbalance utilizing his Thrive in 45 program. A combination of his instinct and expert knowledge make him one of a kind doctor. He truly cares about his patients and delivering results. Patty on Healthgrades
I’ve been a patient of Dr. Jung for almost 30 years. Not only is he highly educated (many degrees), he exudes compassion and dedication while treating his patients. His expertise in autoimmune issues, has helped me and my daughter when no other doctor had a protocol program. He is passionate about helping people live optimal lives. The simple truth is, he is my “Go to Doctor.” Recently he helped a dear friend of mine recover well during and after Covid. His Thrive in 45 program is outstanding! I highly recommend Dr. ung. Vesela on Healthgrades
Dr. Jung was recommended to me by a very good friend of mine whos been his patient for years. After two emergency visits this Spring and no diagnosis maid at those visits, I gave Dr. Jung a call and schedule an appointment. My health was going down slowly every single day and I didn't know why. I had anxiety, panic attacks, heart racing, shortness of breath, lost the sense of smell and taste. My whole body was shaking for hours every day and I couldn't do anything to stop it. When I met Dr. Jung in his office I felt so great...
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Check out the other 87 testimonials at https://www.healthgrades.com/providers/john-jung-2gc2f
Your Health Starts Here
Contact Info
Phone
847 226 8172
Address
Barrington, Illinois 60010
Hours
Monday: 8:00 am - 6:00 pm
Tuesday: 8:00 am - 6:00 pm
Wednesday: 11:00 am -6:00 pm
Thursday: 8:00 am - 6:00 pm
Saturday: 8:00 am - 8:00 pm