Ready for a Different Approach to Healthcare?

Stop Struggling With Chronic Health Issues and Achieve Optimal Health For Life!

Lonna Larsh, MD

Cozy up with a loved one & watch our recorded webinar that might change your life.

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Why watch this?

  • If you have ever struggled getting answers from your doctor, about what is causing your health issues,
  • If you want to actually get well, not just live on prescription medications for the rest of your days,
  • If you are ready to commit to really getting better, once and for all, and understand the root cause of your health issues and what your body needs to stay well for the rest of your life.

Our groundbreaking new collaborative care model of healthcare could be your last stop on your journey to regain your health. Fill out the form to have full access to the video forever, and learn how more people today are starting their journey back to wellness!

Our Approach Is For You If:

  • You want to address the underlying cause of your health concerns
  • You want to be listened to, respected and treated as an individual, not with a "cookie-cutter" approach to your care
  • You are tired of the "disease model" of healthcare, which only attempts to patch over your symptoms
  • You prefer to utilize natural methods whenever possible
  • You don't want to rely on prescription meds, or are tired of the side effects
  • You want to address your whole self as a complete system not just individual parts, and have full confidence in your treatment plan
  • You could use some accountability following through on your treatment
  • You would like a relationship with your doctor, and to feel they're in your corner supporting you on your health journey
Its Beach in Santa Cruz, California
Photograph by Shmuel Thaler/Santa Cruz Sentinel
Its Beach in Santa Cruz, California Photograph by Shmuel Thaler/Santa Cruz Sentinel














About Lonna Larsh, MD

Lonna Larsh is a Medical Doctor with a passion for helping to identify and treat the root causes of illness. She has been practicing family medicine in Santa Cruz for over 25 years. After a decade of working for Santa Cruz Medical Center (now PAMF), she grew frustrated with the corporate structure and demands to see more patients in less time. With a commitment to be more accessible to her patients and take the time needed to deeply listen, she left that practice in 2007 to start her own solo practice. Her interest in the roots of illness led her to complete a 10 year certification process through the Institute of Functional Medicine. She is now board certified in Functional Medicine, Integrative Medicine, and has maintained her Board Certification in Family Medicine.  Along the way she has discovered that the deepest healing takes place when people are guided by a knowledgeable doctor to play an active role in their own health.

She founded Roots of Health in 2018 with the goal to educate people using holistic modalities and to offer the team support needed to help them attain optimal levels of health. She wants you to know that, with a proper diagnosis, a clear path forward, and a commitment to do what it takes to get well, you can enjoy better health not just in your time working together, but for the rest of your life. She lives in Santa Cruz with her husband, daughters, parents, two dogs, and a cat.

  • Board Certified in Family Medicine July, 1994
  • Re-certified 2000, 2007, 2014
  • Board Certified with the American Board of Integrative and Holistic Medicine 2006-2013
  • Certified with the Institute of Functional Medicine (IFMCP) 2019

Additional Integrative and Functional Medicine Training:

  • American Academy of Anti-Aging Hormone training 2015
  • Acupuncture training: Helms Medical Institute Medical Acupuncture for Physicians 2004.
  • Food as Medicine (Center for Mind Body Medicine) 2005.

My practice

I believe that everyone has unlimited potential to overcome their health challenges and live their most purposeful life. I often work with individuals 35 and above who are experiencing symptoms that they haven’t found answers to in the conventional medical system. They are frustrated because they know something is wrong but they can’t get answers or true solutions. On top of that, these symptoms are keeping them from being able to live their lives to their fullest potential. This may look like them being unproductive at work, not fully being present in their relationships, or not being able to be the parents they want to be.

I passionately believe health is one our most valuable assets. I believe that our very best health is not something that just comes to us; it is something that we have to work for. At the same time, working for our best health can be, and should be fun. I believe that health is the sum total of a web of interconnected factors that include what we eat and how we digest our food, how we move, how we sleep, how we relax, and how we relate to each other. Health is the place where our genetics and our environment come together. We each have the opportunity and the responsibility to make the best of this interaction. I am honored to be in a position to help you make the most of your genes and your environment to reach your maximum potential.

My Specialties

As a physician, I specialize in you. I take care of the whole family from newborn babies to those over 100 years of age. My primary interest is functional medicine which focuses on underlying causes of and prevention of disease. We are all biochemically individual. Functional medicine focuses on improving each person’s biochemistry to help them obtain the best quality of life that is possible. My focus is on lifestyle medicine, encouraging people to take an active part in their health through dietary changes and exercise, as well as stress reduction.

My Philosophy

Health care should be a partnership between a doctor (or other health care provider) and an individual. I strongly encourage collaboration between members of a health care team. I believe that we all have the ability to reach our potential and that the best information can help us to get there. It’s my role to provide that information, and hopefully inspiration as well.

What our patients have to say

“I have sense of well-being that the last time I remember feeling was when I was in my 20s! There’s been a fatigue and a flatness [before] and this change has literally stopped depression, stopped anxiety, given me energy, given me better blood work that has motivated me, made me feel I can exercise, and made me feel I have the components for a robust longevity! Or however much time I have, it’s going to be good time! That’s what I feel now!” - Roots of Health patient

“Finding a knowledgeable, non-judgmental, available and caring physician these days is a difficult task. Even if physicians want to be all of those things, they are constricted by the way our current healthcare and insurance systems function. Dr. Larsh, with her private practice, is able to provide all of the above and more. Since our family has joined Dr. Larsh’s practice, we have received the best and most attentive care I have ever experienced from a physician. Dr. Larsh is almost always available, and when she is not, she provides alternatives. Dr. Larsh understands the importance of seeing the whole person in her practice and accepting various modalities of care. Our family could not be more happy with her as our family care physician.” - Roots of Health patient

“Dr. Larsh always goes above and beyond the status quo for the care of her patients, combining the best holistic-based care with excellent bed-side manner. She is extremely reliable and knowledgeable for both acute conditions or general wellness needs. Thank you Dr. Larsh for your top-notch care of myself, my wife, and our two children!” - Roots of Health patient

“I was super sick for almost 5 years, horrible stomach pain, and couldn’t get out of bed. My doctors gave me every test and said there was nothing wrong with me. Thankfully, I found Roots of Health and am so grateful they took me as a patient. In only 2 weeks so far in the program, they found some food allergies, a parasite, candida… it was remarkable to know what was actually wrong with me! I’ve been able to make some changes and already feel amazing in just a few weeks!! By the end of this I’m going to be transcended. I’m so excited.” - Roots of Health patient

“I was in a moment in my life where my body was talking to me and I knew it was the time to do this. I felt I needed help, and I just couldn’t find help like this anywhere else. I knew I needed to do this. And I did it!!  Now I feel great, my painful hormonal issues are gone, I have a lot of energy and don’t have that moment in the day after lunch where I feel tired, I sleep well, I have no regrets that I did this program!” - Roots of Health patient

"It was such a relief to find a practitioner who not only gave me time but who was compassionate and knowledgeable and focused on my individual symptoms, I mean it’s so rare. It is unbelievably rare! So of course my whole family sees Lonna at Roots of Health now, including my husband who hates doctors, he does not “do” doctors, and he will listen to Lonna!" - Roots of Health patient

“I felt like I had so many health issues, I wrote them down, and it was a couple pages and overwhelming to me. Working with Roots of Health, I haven’t felt alone, I have tools, I see results, and I have been eliminating my issues! I love that I’m not doing it alone but I’m doing this with people who really care. I can’t ask for more! This is the complete package to succeed!” - Roots of Health patient

“I have had a lifetime of issues with constipation, which is very uncomfortable and embarrassing. With Lonna, we went through a whole program of using supplements and herbs and changing my diet, and I can honestly say that I haven’t been constipated for over a year now. It’s amazing. They figured it out! And I always felt very supported here. They care, they’re accessible, and assure me they’ll get to the bottom of my issues. And they do!” - Roots of Health patient

Copyright © 2018 Lonna Larsh, MD

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