Functional Medicine

We must look at each patient's health concerns from a broad perspective, taking into account all of the contributing factors from the moment of conception. Every system of the body, every organ has the potential to heal itself and to reset to normal, healthy physiological functioning, it just needs the right guidance with an individualized Functional Medicine and Integrative Neurology health plan.


Dr. Leila Doolittle performs detailed examination of all systems of the body. This helps her to gain a more integrative perspective of her patients health concerns to better fill in the pieces of their health puzzle, including the neurological connection to hormone production, to cardiovascular function, to cortisol and stress reactions in the body, to proper immune responses, etc. Many patients report that the detailed exam and lab-review. Dr. Doolittle performs is more in-depth than they have ever experienced at any other doctor's office, and they take comfort in knowing that no findings of importance will fall through the cracks. 


Functional Medicine addresses the whole person, not just an isolated set of symptoms. Dr. Doolittle spends time with her patients, listening to their histories and looking at the interactions among genetic, environmental, and lifestyle factors that can influence long-term health and complex, chronic disease. In this way, Functional Medicine supports the unique expression of health and vitality for each individual.​

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Dr. Doolittle will sit down with you and thoroughly visit with you about your health history, symptoms you are experiencing and health goals you have for yourself. Then she will explain in detail the contributing factors to each of the health concerns you have.

She loves to teach, and will help to enlighten you over the contributory causes to why you are experiencing the symptoms and conditions and will correlate how these are related and how they are affecting other mechanisms and pathways in the body.

What is Functional Medicine?

Functional Medicine is an Integrative Approach to Healthcare

  1. Functional Medicine determines how and why illness occurs and restores health by addressing the root causes of disease for each individual.

  2. The Functional Medicine model is an individualized, patient-centered, science-based approach that empowers patients and practitioners to work together to address the underlying causes of disease and promote optimal wellness. It requires a detailed understanding of each patient’s genetic, biochemical, and lifestyle factors and leverages that data to direct personalized treatment plans that lead to improved patient outcomes.

  3. By addressing root cause, rather than symptoms, practitioners become oriented to identifying the complexity of disease. They may find one condition has many different causes and, likewise, one cause may result in many different conditions. As a result, Functional Medicine treatment targets the specific manifestations of disease in each individual.

Definitions from Institute of Functional Medicine

Four factors that are of high importance in functional medicine care are:

1.  Determining where the failure in the physiological system and/or body lies.

2.  What contributing factors have triggered or are mediating the health condition or symptom?

3. What would be the right alterations from food messengers to introduce into the body via strategic food plans?

4.  Do we need to add in supplementation to gain the desired health results? What is our goal to remove these from the health plan?

5. How to we most effectively and strategically help restore healthy physiological function so every patient can live their life vibrantly. 

From every stressor their mother experienced while in her womb to every disconcerting thought they had throughout each phase of their lives, every chemical they consumed to the purity of the water they drink and the air they breathe has impact on total chemical load and the health of each organ system. Every bump on the playground growing up or the injury of a joint can affect neurological signaling from the body to the brain and from the brain back to each function in the body again. Every event throughout their lives has had an impact on their current health condition. We must take all these into account and correct for each and every one of the insults to health to fully restore health and functioning.

Bio: Dr. Doolittle's Training in Functional Medicine

Dr. Leila Doolittle has received extensive training in Functional Medicine from several renowned institutions of Institute of Functional Medicine and Functional Medicine University as well as direct clinical mentorship from brilliant clinician leaders in the field such as Dr. Datis Kharrazian, Dr. Margaret Christiansen, Dr. Brandon Brock, and Dr. Luke Arnett. 

Dr. Doolittle is an Institute of Functional Medicine Certified Practitioner (IFMCP). The Institute of Functional Medicine (IFM) sets a gold standard for the education, training and clinical practice of Functional Medicine globally. IFM uses solid scientific foundations to translate breakthroughs in scientific understanding into clinical practice in real-time. IFM is on the forefront of presenting the latest evidence-based medical research to convert to the most cutting-edge effective practices. The most prevalent health issues are mostly caused by the interactions between genetics, lifestyle choices, and environmental exposures and the treatment of these requires understanding not only these interactions in detail, but also how to efficiently design appropriate treatments that are personalized to each individual. Dr. Doolittle has specialized in genetics and nutrigenomics throughout her training during the past 14 years. She has a passion for helping create healthy epigenetic changes. She also has had extensive training in functional endocrinology, and works to create wholistic and healthy alterations to hormones to help balance the hormone and neurotransmitter systems of the body.

Dr. Leila Doolittle is also certified through Functional Medicine University (CFMP). She learned many techniques of how to better apply combined advanced laboratory testing, how to help intensive chronic health conditions, how to reverse resistant chronic conditions such as arthritis, chronic fatigue, diabetes, heart problems, insomnia, depression, mysterious pains and many more.

Furthermore, Dr. Leila has attended over 75 seminars that present various aspects of Functional Medicine and Nutrition, helping her to have a very in-depth perspective as a whole of the most efficacious health plans for her patients. 

To schedule a free phone consultation with Dr. Leila Doolittle to discuss how the Functional Medicine approach can help you achieve your health goals, email us at or call us at (469)759-9457.