
At Functional Doctors, we offer a comprehensive Gut Test designed to give you deep insight into your digestive health. Our Gut Health Test UK service analyzes digestion, absorption, and gut bacteria to help you restore balance and take control of your wellbeing
Comprehensive Methylation Health Testing Services
Services
At Functional Doctors, we provide the latest in methylation testing to help you understand how your body is managing important biochemical functions such as detoxification, energy production, and mood regulation.

At Functional Doctors, we offer a comprehensive Gut Test designed to give you deep insight into your digestive health. Our Gut Health Test UK service analyzes digestion, absorption, and gut bacteria to help you restore balance and take control of your wellbeing
Comprehensive Methylation Health Testing Services
Services
At Functional Doctors, we provide the latest in methylation testing to help you understand how your body is managing important biochemical functions such as detoxification, energy production, and mood regulation.

First Name
Last Name
Mobile No.
Who do you want to see?
Dr. Nicki Gill
Dr. Meera Rajah
Type in your concern
Contact us
Get in Touch for Personalised, Professional Care
We're Here to Help You on Your Health Journey
Contact us
Get in Touch for Personalised, Professional Care
We're Here to Help You on Your Health Journey
First Name
Last Name
Mobile No.
Who do you want to see?
Dr. Nicki Gill
Dr. Meera Rajah
Type in your concern
Contact us
Get in Touch for Personalised, Professional Care
We're Here to Help You on Your Health Journey
Contact us
Get in Touch for Personalised, Professional Care
We're Here to Help You on Your Health Journey
Our Experts
Meet Our Functional Medicine Experts
Meet Our Functional Medicine Experts
Combining NHS Expertise with a Holistic Approach to Personalised Care
Combining NHS Expertise with a
Holistic Approach to Personalised Care

Dr. Nicki Gill
MBChB MRCGP AFMCP
Hi there! I’m Dr. Nicki Gill, and I’m thrilled to welcome you to our functional medicine practice. With several years of experience as an NHS General Practitioner, I’ve developed a strong interest in women’s health and neurodiversity. My journey began in Warwickshire, where I trained and worked as a GP. I progressed to become Clinical Lead, overseeing several GP practices, and eventually took on leadership roles, including my position as Medical Director for urgent care and out-of-hours services in the West Midlands.

Dr Meera Rajah
MBBSc MRCGP MEd MRCEM DRCOG DFSRH DCH AFMCP
Hi, I am Dr Meera Rajah, working NHS GP , for over 10 years and GP partner for 8 years where I have developed my interest in women’s health and dermatoscopy. Following qualifying from Imperial College London, I have always been interested in acute medical care so I still do surprisingly enjoy a busy triage session as a NHS GP! With worrying data such as obesity doubling since 1990 and the prevalence of cancer increasing every year, we really do need to look at the root causes of illness and symptomatology.


Dr. Nicki Gill
MBChB MRCGP AFMCP
Hi there! I’m Dr. Nicki Gill, and I’m thrilled to welcome you to our functional medicine practice. With several years of experience as an NHS General Practitioner, I’ve developed a strong interest in women’s health and neurodiversity. My journey began in Warwickshire, where I trained and worked as a GP. I progressed to become Clinical Lead, overseeing several GP practices, and eventually took on leadership roles, including my position as Medical Director for urgent care and out-of-hours services in the West Midlands.
Dr Meera Rajah
MBBSc MRCGP MEd MRCEM DRCOG DFSRH DCH AFMCP
Hi, I am Dr Meera Rajah, working NHS GP , for over 10 years and GP partner for 8 years where I have developed my interest in women’s health and dermatoscopy. Following qualifying from Imperial College London, I have always been interested in acute medical care so I still do surprisingly enjoy a busy triage session as a NHS GP! With worrying data such as obesity doubling since 1990 and the prevalence of cancer increasing every year, we really do need to look at the root causes of illness and symptomatology.


Dr. Nicki Gill
MBChB MRCGP AFMCP
Hi there! I’m Dr. Nicki Gill, and I’m thrilled to welcome you to our functional medicine practice. With several years of experience as an NHS General Practitioner, I’ve developed a strong interest in women’s health and neurodiversity. My journey began in Warwickshire, where I trained and worked as a GP. I progressed to become Clinical Lead, overseeing several GP practices, and eventually took on leadership roles, including my position as Medical Director for urgent care and out-of-hours services in the West Midlands.
Dr Meera Rajah
MBBSc MRCGP MEd MRCEM DRCOG DFSRH DCH AFMCP
Hi, I am Dr Meera Rajah, working NHS GP , for over 10 years and GP partner for 8 years where I have developed my interest in women’s health and dermatoscopy. Following qualifying from Imperial College London, I have always been interested in acute medical care so I still do surprisingly enjoy a busy triage session as a NHS GP! With worrying data such as obesity doubling since 1990 and the prevalence of cancer increasing every year, we really do need to look at the root causes of illness and symptomatology.
Chronic fatigue or low energy
Chronic fatigue or low energy
Anxiety, low mood, or brain fog
Poor detoxification and toxin build-up
Hormonal imbalances and irregular cycles
Nutrient malabsorption issues
03
04
05

01
01
02
02
Our Approach
We believe every person's healing story is unique. That's why our process begins with a thorough intake review, followed by a 1-hour deep-dive consultation where we go over your full health history, symptoms, and goals. Based on the findings, our practitioners will put together a personalized treatment plan that will address the root causes of imbalance, rather than just the symptoms.
We believe every person's healing story is unique. That's why our process begins with a thorough intake review, followed by a 1-hour deep-dive consultation where we go over your full health history, symptoms, and goals. Based on the findings, our practitioners will put together a personalized treatment plan that will address the root causes of imbalance, rather than just the symptoms.
Our Approach
Our Approach
Why Take a Methylation Health Test?
Why Take a Methylation Health Test?
Poor detoxification and toxin build-up
Signs of leaky gut or dysbiosis
Chronic fatigue or low energy
03
02
01
Hormonal imbalances and irregular cycles
04
Nutrient malabsorption issues
05

How the Methylation Health Test Works
The process is simple and non-invasive. You'll receive a collection kit for a saliva or blood sample, which is then sent to one of our certified partner laboratories. Your sample is analyzed for variations in key methylation-related enzymes such as MTHFR, COMT, and MTRR genes that influence detoxification, energy production, and hormone regulation.
The Functional Medicine Advantage
At Functional Doctors, we take a holistic approach by analysing how gut, toxins and hormones connect to immunity and energy. By applying functional medicine principles, our practitioners get to the 'why' of your symptoms. Sometimes we recommend heavy metal testing or nutrition testing to complete a view of your body's internal balance.
Book Your Gut Health Test
Our methylation health testing is available for just £275.50, giving you the clarity you need to heal from within. Contact us today to schedule your Methylation Test and discover the power of personalised, functional health.
How the Methylation Health Test Works
The process is simple and non-invasive. You'll receive a collection kit for a saliva or blood sample, which is then sent to one of our certified partner laboratories. Your sample is analyzed for variations in key methylation-related enzymes such as MTHFR, COMT, and MTRR genes that influence detoxification, energy production, and hormone regulation.
The Functional Medicine Advantage
At Functional Doctors, we take a holistic approach by analysing how gut, toxins and hormones connect to immunity and energy. By applying functional medicine principles, our practitioners get to the 'why' of your symptoms. Sometimes we recommend heavy metal testing or nutrition testing to complete a view of your body's internal balance.
Book Your Gut Health Test
Our methylation health testing is available for just £275.50, giving you the clarity you need to heal from within. Contact us today to schedule your Methylation Test and discover the power of personalised, functional health..