Functional Medicine

What is Functional Medicine?

Functional medicine is an integrative, science-based healthcare approach that treats illness and promotes wellness by focusing assessment on the biochemically unique aspects of each patient, and then individually tailors interventions to restore physiological, psychological, and structural balance. Functional medicine uses the patient's whole story as a key tool for integrating diagnosis, signs and symptoms, and evidence of clinical imbalances into a comprehensive approach.

Functional medicine is personalized medicine that deals with primary prevention and underlying causes instead of symptoms for serious chronic disease. It is a science-based field of health care that is grounded in the following principles:

  • Biochemical individuality describes the importance of individual variations in metabolic function that derive from genetic and environmental differences among individuals.
  • Patient-centered medicine emphasizes "patient care" rather than "disease care," following Sir William Osler’s admonition that "It is more important to know what patient has the disease than to know what disease the patient has."
  • Dynamic balance of internal and external factors.
  • Web-like interconnections of physiological factors – an abundance of research now supports the view that the human body functions as an orchestrated network of interconnected systems, rather than individual systems functioning autonomously and without effect on each other. For example, we now know that immunological dysfunctions can promote cardiovascular disease, that dietary imbalances can cause hormonal disturbances, and that environmental exposures can precipitate neurologic syndromes such as Parkinson’s disease.
  • Health as a positive vitality – not merely the absence of disease.
  • Promotion of organ reserve as the means to enhance health span.

Functional medicine is anchored by an examination of the core clinical imbalances that underlie various disease conditions. Those imbalances arise as environmental inputs such as diet, nutrients (including air and water), exercise, and trauma are processed by one’s body, mind, and spirit through a unique set of genetic predispositions, attitudes, and beliefs. The fundamental physiological processes include communication, both outside and inside the cell; bioenergetics, or the transformation of food into energy; replication, repair, and maintenance of structural integrity, from the cellular to the whole body level; elimination of waste; protection and defense; and transport and circulation.

Information provided by The Institute for Functional Medicine.

The Functional Medicine Model applies to:

  • GI dysfunction
  • Hormonal imbalance
  • Inflammation
  • Orthopedic issues
  • Immune dysfunction
  • Metabolic syndrome
  • Nutritional status
  • Adrenal & thyroid fatigue
  • Therapeutic relationship
  • Toxins & biotransformation
  • Food allergies & sensitivities

To learn more about functional medicine, view this pdf.

Also, visit the Chemical/Hormone Pathways page.

Functional Medicine Testimonial:

Functional Medicine Testimonial: Gary Taylor

Dr Jerry
At 48 years old my Ironman training was leaving me tired and unable to recover well. I gave you the impossible task of turning that around in less than 6 weeks before my event, but with just one consultation regarding my blood screen results you were able to give me more energy, better focus, and I looked forward to the next workout.

The end result was that I rocked my first Ironman in 10:25:23 and I know I owe a huge part of that success to you.

Thanks, your customer and advocate for life,
Gary Taylor, Ironman!

Functional Medicine Testimonial: Dr. George Khoury

I am proud to call Dr. Jerry Moylan a friend as well as a colleague in my incredible profession. Being in practice for over 20 years, I have had the priviledge to work with some of the greatest chiropractors on the planet. I am happy to include Dr. Moylan as one of them.

His knowledge and scientific background give him such a strong foundation in helping to improve peoples lives. What he does is save lives. What’s even more outstanding is his passion and commitment for his patients. He loves what he does and he walks his talk. I have so much respect for this great doctor.

Dr. George P. Khoury, D.C.
Advance Health Chiropractic
Livermore, CA

Functional Medicine Testimonial: Gary Todd

"How is Your Health?” After not talking to Dr. Jerry for a couple of months that is the first question he asked me and that may sum up our relationship what I am going to say about Dr. Jerry Moylan.

I met Dr. Jerry in March of 2009 at a Kettlebell Lifting competition held at the Arnold Sports Festival in Columbus, Ohio. It is easy to spot Jerry. He is the friendly guy, built like Bruce Lee, with the endless smile, endless energy and enormous talent. After briefly getting to know each other after Jerry won his division, I made a comment to Jerry something like, “I want some of what you have” and he replied, “I can help you with that”. We talked and later emailed about how this might work since Dr. Jerry is in San Diego and I live in Louisiana. I soon found out that it would work with plenty of interaction with Dr. Jerry on the phone, email, written correspondence and in short, any means necessary. It soon became clear that the level of dedication that Dr. Jerry puts into his personal athletic endeavors he puts into his clients as well.

Well since that time, help he did. Dr. Jerry worked with me meticulously on my lifestyle, workout plans, diet, supplemental intake and injuries. My results were verified via blood tests conducted by two different Medical Doctors in tests they ordered. Here are the actual numbers of what was accomplished:

Category Beginning of 1st 21 Days End of 21 Days Result
Weight 172.5 155.5 17 Pounds
Triglycerides 155 43 112 Point Loss GREAT
Total Cholesterol 215 173 42 Point Loss
HDL 55 60 5 Point Increase GOOD
LDL 134 101

33 Point Loss

Blood Pressure 135/95 120/75 Good

After the first 21 days, I continued on my weight loss and workout regimen and eventually settled in at a weight of around 150 pounds with a body fat percentage around 12%.

My energy level now is incredible and I follow a workout regimen with my kettlebells, road bicycle and martial arts that would make kids in their 20's jealous for the intensity level. After knee surgery on both knees in the past, neither of them bothers me anymore with my current level of fitness, weight loss and body fat percentage. I only look to improve more in these endeavors.

At 50 years old, I am looking forward in the coming year to competing in Kettlebell competitions, Bicycle racing and Martial Arts tournaments. Whether I win or not is of little concern to me.

As Dr. Jerry and I have discussed – I have already won the most important competition in the health arena with his help and guidance. Dr. Jerry constantly pushed me for Health, Health and more health.

I am happy to recommend Dr. Jerry and his services to anyone who is interested in getting better at their particular discipline, but more importantly improve their health and well being.

I can be contacted at for any further detail or questions that you may have.

Gary Todd
Heat instructor of World Eagle Claw Association in Louisiana

Gary Todd

Functional Medicine Testimonial: Eric Otte

Dr. Jerry has helped me significantly with my back, my biomechanics, stretching, training and nutrition.

I first met Dr. Jerry on the (San Diego) Wednesday bike ride over 20 years ago. If you are not familiar with "the Wednesday" bike ride in San Diego, it has gone off for more than two decades. In the 80s and 90s frequent participants included Ironman winners (John Howard, Scott Tinley, Greg Welch, Mark Allen), Olympic champion (Steve Hegg), Masters World champion (Dr. Copeland) and even recent Tour De France top finisher Chris Horner. Dr. Jerry was in there mixing it up with those guys. Dr. Jerry does not ride his bike much anymore, instead he travels the world winning all kinds of diverse sporting events. When I grow up I want to be like Dr. Jerry.

I started visiting Dr. Jerry for chiropractic treatments about two years ago and I must say the recovery has been miraculous. Years of work stress and hard training left me with severe back pain and fatigue. I discussed my history and symptoms with Dr. Jerry. After a few pretzel moves and back pops, things started to feel better. I would typically go in and whine about how fast I used to be and where it hurts. Dr. Jerry would then adjust what needed adjusting which might include, the spine, posture, training techniques, training volume, nutrition and attitude. I must say all of these things have really made a big difference in the way I feel and the things I have been able to accomplish. The nutrition adjustments Dr. Jerry recommended have also made my mind much sharper. Work, play and home life are all better. The boss is happy, the wife is happy and the time clock is showing personal bests again.

Thank you Dr. Jerry

Eric Otte

Functional Medicine Testimonial: Ed Serrano

Dr. Jerry is one of the best health practitioners in California. My wife and I were both suffering from a lot of aches and some serious medical conditions when we first met him. Through a series of intensive detox, blood test analysis and comprehensive health monitoring, we both lost around 28 lbs each, boosted our immunity, increased our energy level, learned to cope with stress, among other things. The process became a lifestyle change. The detox was the hardest process we had to go through but it was well worth it. We did it several times too and it got easier after awhile.

There are a lot of professional athletes that endorsed Dr. Jerry. My wife and I are not athletes but we feel so much better that we walked 40 city blocks in downtown San Francisco in a half day in one of our vacations. My bicycling has improved much better: I could lower my heart rate one beat at a time while climbing a long hill. We are very thankful to God that we found Dr. Jerry, and we strongly recommend him.

Ed & Teresa S.

Functional Medicine Testimonial: Dr. John Paul Condon

I first went to see Dr. Jerry after about 8 years of triathlons, anywhere from sprint to ironman distances, many century bike rides and marathons. As you can guess all of that endurance training put some stress on my body's physiology. I ended up with contact dermatitis on the tops of my feet which was very itchy and irritating. I was not able to run or do much endurance activity. If I did it would continously flare-up. After completing all the blood and hormone testing with Dr. Jerry we found out the cause of my symptoms. It took time to heal. After about 6 months of dietary changes, nutrition, herbal, and hormonal supplementation my body was finally able to heal. I can now run and participate in longer endurance events once again without having any flare-ups. Thank you Dr.Jerry for all your help and for also helping all of my patients that I refer over to you.

Dr. John Paul Condon, D.C.

Functional Medicine Testimonial: Carey Marshall

Dear Jerry,

Thank you for introducing me to the 21 day cleanse and educating me on a new way to live. Over the years you had mentioned a cleanse to me, but NEVER did I think that I would have the desire or motivation to complete it. But last December - the time was right for me. With an injured back which kept me from any exercise and a body that needed to be "cleansed," I decided to go for it!

These 21 days were not easy for me - as a matter of fact - they were very difficult. There were times I felt like I would never be able to finish - especially the ski weekend to Mammouth. My lifestyle took a major detour for those 21 days and I am proud to stay (for the most part) I have stayed on that road.

I feel like I am a new person in several ways - (20 lbs less)! I have a different way of looking at food and everything I put into my mouth. I realize that truly, you are what you eat. I don't have to workout like crazy everyday to keep my weight where it should be. My head is in a better place because of that. I am thoroughly enjoying my new way of living. I do not have the ups and downs of caffeine & sugar, because I no longer depend on it for energy. Also, my sleeping patterns are back to normal.

I look forward to happy, healthy eating now and forever.

Thanks again

Carey Marshall

Functional Medicine Testimonial

Dr. Jerry has been the only person that has been able to help me lose weight. His approach is very different from any other diets, programs, etc... He does it on an individual basis. First you take a blood test so he has a baseline to see what your individual problem may be. He then gives you a diet to start to balance out your system. I lost 13 pounds in three weeks. Unheard of for me. I am 64 years old and had a hysterectomy at age 40. I was always thin and then after my surgery I just started gaining weight. I hit 40 pounds above my normal weight and knew I had to lose this extra stomach. Dr. Jerry gave me hope. He followed up to make sure I was following my assignment and gave me hope to carry on. I would recommend Dr. Jerry Moylan.

Functional Medicine Testimonial: Vendula

I came to Jerry Moylan´s office in very poor conditions. I collapsed the week before during the World Cup race in Mexico and suffered with lots of muscle spasms and breathing difficulties. Jerry put me back on track in just two days so I could race the World Triathlon Series Race five days after the accident. I won´t lie that his treatment was painless but it was all the best to release the deep pain from my body. He helped me to solve some basic nutrition issues according my blood tests, too. It helps me for the long term to perform better and feel better.


Functional Medicine Testimonial: Stephen E. Jacobs

Dear Jerry, I have prepared this testimonial in sincere appreciation for the services you have performed for me and for the following noticeable health benefits that I have experienced:

  • I have experienced no more heartburn symptoms for over the past 2 months.
  • My PSA level has dropped since November 2013.
  • I have stopped taking the prescription medication Wellbutrin.
  • Sleep insomnia has been greatly reduced, such that for the most part, I sleep more soundly and feel more rested in the morning when I wake up.
  • I have more energy and the frequency and duration of afternoon naps has been noticeably reduced.
  • I feel generally more calm and less stressed out during the day.

Thank you for the opportunity to benefit from your services.

Very truly yours,
Stephen E. Jacobs

Functional Medicine Video
Courtesy of VIS (Vitality and Wellness, LLC)