Functional Medicine and Optimal Health

Functional Medicine focuses on identifying the root cause of symptoms and disease, using an evidence based holistic approach to examine how environment, lifestyle, nutrition and genetics interplay to lead to ill health, poor performance or delayed recovery.

Our bodies function as a set of interconnected systems which can either support or deplete one another. The aim of conventional medicine is to simply avoid disease and suppress symptoms in an isolated fashion, without consideration of how they impact on one another and never asking the questions WHY?. In Functional medicine we love that question and the aim is optimal health so we address fundamental causes by examining the body’s various systems as a whole and targeting the upstream causes of symptoms. This approach allows us to work with people on many levels, recognising that each person is an individual with unique requirements. The in-depth consultation, detailed medical history and cutting edge laboratory testing allowsentirely personalised interventions which lead to real and lasting change to health and performance.

Whether you are dealing with debilitating symptoms and feel at the end of your tether, are looking to increase longevity and vitality or reach your maximal athletic potential, a fully integrated and individualised clinical approach with Functional Medicine and Nutrition can make the difference for you.

At RRMG we aim to provide the most comprehensive Functional Medicine care possible so you will be working with both our certified Functional Medicine Doctor and our Functional Nutritional Therapist to give you all the tools you need to achieve optional health.

Functional Medicine and Athletic Performance?

As an athlete you are already ticking the ‘get some exercise’ box and probably eating pretty well in order to fuel your training load. However, there is always room for improvement. Perhaps you are dealing with “normal” symptoms like hay-fever, PMS, bloating or disrupted sleep. Or you are finding it tricky to combine your training program with a known condition like IBS or autoimmunity? In all cases your recovery and adaptation is already being compromised. Functional medicine and nutritional therapy seeks to rebalance systems so that you can get the most return for the hard work you put in at training. Underpinning all this is the need to maximise the availability of training time by avoiding illness and injury. A robust immune and repair system with sound nutrition are fundamental to reap the benefits come competition day.

Sports science and nutrition is a hugely complex field and often very difficult to navigate.  Every week a new piece of research hits the internet extolling the virtue of one food, herb, diet or supplement over another.  Unfortunately, much of the information is provided in isolation, making it hard for you to work out the ideal combinations for your particular situation and goals. Caution is required when selecting supplements/products to avoid the risk of inadvertent doping from cross-contamination.  This is where a Functional Medicine and the Nutritional Therapist is worth their weight in gold: their wealth of experience enables them to analyse the research, look for bias or limitations, potential interactions/side effects and source appropriately tried and tested products (if needed). Your training program is meticulously worked out and Functional medicine puts this much care and attention into a fully individualised lifestyle and nutrition program to support this so you leave no stone unturned.

What happens during a Functional Medicine Consultation?

We want to hear your full story so prior to the consultation you will be asked to fill in a comprehensive health and nutritional questionnaire, which is used to map out yourcurrent health and health history. During the appointment with Doctor Alex you will be truly listened to so we fully understand your health journey. Doctor Alex can then explain the mechanisms in play that are contributing to your symptoms and health and create a totally personalised plan to address these. Appropriate functional testing will be discussed and recommended to further investigate root causes and tailor the interventions even further. You will leave with a plan in place including meal plans, lifestyle adjustments and a supplement regime.

You will then meet with the nutritional therapist who can explain in more detail the nutritional interventions and how to implement them as well as any testing procedures and lifestyle changes.

Meet The Team

Dr Alexandra Davidson

Dr Alexandra Davidson
BSc (Hons) | MBBS (Merit) | MRCGP (2012) | DRCOG | AFHEA| MA (Hons) | AFMCP

Functional Medicine: Dr Alex

“My interest in Functional Medicine stems from my own experience as a patient, it transformed my health and I was able to stop all prescription medication using simple nutrition and lifestyle principles alongside high quality supplements. I was to share this wholistic and personalised approach to chronic medical conditions to find and address the core imbalances or underlying causes rather than just treat the symptoms. “

Dr Alex Davidson is a highly experienced NHS GP and Functional Medicine doctor with a strong research background and a huge passion for an inside-out approach to health. She believes that with a focus on gut health and the right nutrition, ill health- both physical and mental- can be improved and that good health can be enhanced. As a keen road cyclist whose husband races for a team, she has utilised the Functional medicine approach to enhance performance and recovery as well as facilitating optimal body composition.

Henrietta Paxton

Henrietta Paxton,
BSc (Hons) | MSc (Merit) | PG Dip | CISSN (Distinction)

“I came to Nutritional therapy after a major sporting injury, from which I was told I would not recover. After some fundamental nutritional changes 18 months later I competed for Scotland at my 2nd Commonwealth Games. This experience gives me a deep understanding of the huge potential good nutrition holds to make life changing differences in health and performance.”

Henrietta is a former international athlete for both Scotland and Great Britain. She holds an MSc in Personalised Nutrition, a Nutritional Therapy Practice Diploma, a BSc in Sport and Exercise Science and a certificate in Integrated Sports Nutrition. This ensures a robust understanding of both the science and daily demands of sport and the interpretation of evidence-based nutrition for individuals. Henrietta believes that health feeds performance and has a passion for spreading her love of real food, and its incredible power to nourish the astonishing instrument that is the human body. Find out more about Henrietta at

What Can Functional Medicine Help With?


Functional Medicine is ideally seen as a package of personalised care over a 12-week cycle but the following are available as individual priced sessions

– Cost of Supplements and testing not included in any prices

– RRMG takes no commission on tests and supplement, instead we pass on all practitioner discounts to the client.

New Patient Consultation with Doctor and Nutritional Therapist £600

Follow-Up Consultations

12 Week Functional Medicine Package – £2700

  • Initial 90-minute Consultation with Doctor

    –A treatment plan is formulated along with nutrition programme and initial core supplements to start whilst waiting for test results

  • Initial 60-minute Consultation with nutritional therapist
    — An explanation of the “How To” for the suggested testing, plus the specific details and explanation of bespoke food plans and suggested initial core supplements
  • 30-minute check in coaching call with Nutritional Therapist at 2 weeks
  • 60-minute Follow-up consultation with Doctor at 4 weeks with test results
  • 30-minute check in with Nutritional Therapist if necessary at 4 weeks
  • 60-minute follow up appointment with Nutritional Therapist at 8 weeks to track progress and implement any necessary changes
  • 60-minute Review appointment with Doctor at 12 weeks
All investigations, functional or metabolic testing are charged separately

Sports Specific Bolt Ons

(Available on any plan)

To Book An Appointment or Request More Information

Tel : 0207 112 5400
Email :