"My symptoms had been controlling my life for years. I am so thankful to Dr Nasr’s team for shedding light upon 18 years of suffering, giving me my life back and handing back the key to my wellbeing. Thank you so much!"

– Sneha

DNA Client

"My symptoms had been controlling my life for years. I am so thankful to Dr Nasr’s team for shedding light upon 18 years of suffering, giving me my life back and handing back the key to my wellbeing. Thank you so much!"

– Sneha

DNA Client

Our Gut Health Clinic helps you overcome IBS, leaky gut, constipation & chronic digestive conditions.

Healing the gut is like any complex problem-solving activity; you need to look beyond the symptoms and focus on the underlying root cause.

Suppressing symptoms may result in short-term health improvement, but your original symptoms are likely to come back, and often progressively worsen, unless the underlying root cause is identified and treated with a more holistic approach to healing that is tailored for you.

Our journey starts with U.

Your gut feeling

As many as 85% of adults in the western world suffer with some form of gut problem annually. Irritable Bowel Syndrome (IBS) is becoming a significant healthcare burden worldwide, affecting around 11% of the global population.

Apart from the ever-increasing incidence of primary gut disorders, an unhealthy gut can contribute to a wide range of diseases including obesity, diabetes, autoimmune disorders, hormonal imbalances, chronic fatigue, autism, depression, and cardiovascular disease.

Therefore, not only is identifying the underlying root cause critical to eradicating symptoms, it is also critical to improving your long-term health.

Gut health packages for U.

Package 1

GI-Map™ Gut Health & Microbiome

Package 2

Healing your Gut

Package 3

Healing your Gut & Food Intolerances

*Prices include VAT

Do not accept IBS as a diagnosis

As far as the mainstream approach to the gut is concerned, as long as you have abdominal pain and/or bloating, with constipation or diarrhoea, but do not have signs of inflammatory bowel disease or cancer, you are given the label ‘Irritable Bowel Syndrome’.

IBS is technically not a diagnosis, rather a description of symptoms. Furthermore, the reason that an underlying cause and treatment for IBS is hardly ever identified for most people, is that you cannot find a single cause and treatment for something that is not one condition.

With the development of technology, leading to better insights in to the gut ecosystem

Our highly specialized functional gut testing, with significant supporting research, can actually identify and subsequently help us treat the specific underlying disorder. Meaning the IBS ‘life sentence’ can be lifted, allowing our clients to get back to normal life.

How it works

Your steps to better health

1. Initial consultation

• Review your medical history

• Identify testing required

• Initial diet, lifestyle & supplement recommendations

2. Scientifically Proven

• Advanced GI functional testing (either in-clinic or home kit)
• Return (home) kit to clinic
• Kit is analysed at a specialist laboratory

3. Fast & Effective

• Follow-up consultation to review and interpret your test results
• A personalized gut healing protocol detailing diet and lifestyle
• Comprehensive supplemental protocol
• Detailed written report with summary of results, recommendations and next steps

4. Natural & Safe

• Regular consultation with one of our team to review your progress and update your protocol
• Access to further supplements and follow-up testing
• Email and tele-conferencing support available

Note : Tests, consultations and follow-ups are dependent on packages purchased.

Meet The Experts

Our team of specialists have helped hundreds of clients around the world identify the root cause of their digestive symptoms and take back control of their gut health.

Dr. Nas Al Jafari

Co-Founder Of DNA Health
Chief Medical Officer
Functional & Regenerative Medicine
Chairman of Scientific Advisory Board, IFM Certified

Dr. Yosef Alsaieq

Functional Medicine Practitioner
Family Medicine Specialist
IFM Certified, American Board of Regenerative Medicine Certified

Dr. Ismail Ahmed

Functional Medicine Practitioner
Functional & Regenerative Medicine
IFM Member, American Board of Regenerative Medicine Certified

Dr. Sarah El Ouarti

Functional Medicine Practitioner
IFM Member, American Board of Regenerative Medicine

Dr. Zeeshan Khan

Functional Medicine Practitioner
IFM Member, American Board of Regenerative Medicine

Dr. Suresh Vassen

Functional Medicine Practitioner
Integrative Functional Medicine Practitioner
AFMCP Certified

Dr. Khalil Serhan

Functional Medicine Practitioner
IFM Member

Dr. Mishika Khithani

Functional Medicine Practitioner
IFM & SAFM Certified, Applied Functional Medicine Institute Member

F.A.Q’s

 

Constipation is one of the most common symptoms we see in our clinic – affects up to 25% of the population – And whilst most people think of constipation as just an annoying symptom, it can also be the root cause of other symptoms and conditions, including fatigue, weight gain, low mood, and many more.

Many clients come to us having been labelled for many years as having IBS or functional constipation and encouraged not to look any further. We almost always find an underlying and treatable condition.

Chronic constipation is often not resolved with simple, conventional remedies like drinking more water and eating more fibre. This does not work for those people who have more going on in their gut, much to the confusion of patients and their family.

If you only know the symptom, you can only focus on suppressing those symptoms in the short-term. Using laxatives is a great example of only temporarily suppressing the constipation symptom.

  1. Food allergies and sensitivities
  2. Microbiome imbalances
  3. Gut infections & inflammation
  4. Neurological issues

Healing constipation is a journey. Our Functional Medicine Team will work with you to help identify and treat your specific underlying causes, and put you on a nutritional & lifestyle plan to optimal health & wellness.

The lining of the gut is made of millions and millions of cells. These cells join together to create a tight barrier that acts like a security system and decides what gets absorbed into the bloodstream and what stays out. ‘Leaky Gut’ or intestinal permeability is a consequence of an unhealthy gut, leading to a weakening in the gut lining.

When the bowel lining is altered or damaged, larger, undigested molecules are absorbed into the bloodstream and cause further inflammation, consequently preventing the absorption of beneficial nutrients.

Whilst this is a relatively new discovery, there are strong links between leaky gut, inflammatory digestive conditions and a number of wider health issues.

Since the discovery in 2000 of key regulators of intestinal permeability, better insights in to the ecosystem residing in our gut has provided support for the concept that a disruption of the gut environment may cause the onset of leaky gut and the exacerbation of many health conditions.

Our highly specialised functional gut testing, with significant supporting research, can actually identify and subsequently help us treat your underlying gut disorder. We utilise a unique Intestinal Permeability and Absorption (IPA) test focused on assessing intestinal permeability & damage, gut function, intolerances and the health of intestinal villi.

Increased intestinal permeability is primarily caused by the over-consumption of alcohol and processed drinks, pharmaceutical drugs, and diets consisting of low-fiber, high-fructose, preserved, and processed foods. Other factors such a stress, sleep disruption and intensive exercise has been shown to increase gut permeability.

Gut inflammation is typically accompanied by:

  1. Impaired gut barrier function
  2. Microbial imbalances
  3. A hyperactive gut immune system

In other words, a compromised gut barrier, leading to increased intestinal permeability is required for gut inflammation to occur. However, the wrong gut bacteria, disrupted gut motility, or other factors (diet, medications, stress, etc) may be responsible for causing leaky gut in the first place.

The effects can be varied and severe, ranging from fatigue and bloating to heightened food allergies, protein damage, detoxification inhibition, and a weakened immune system.

Leaky Gut is associated with a wide range of chronic conditions, including allergies, obesity, diabetes, inflammatory bowel disease, skin conditions, and more.

Unfortunately, many of these symptoms are unrecognized, and many cases of increased intestinal permeability are undiagnosed.

Book your appointment

Dr. Nas Al Jafari

Dr Nasr Al Jafari

Co-Founder of DNA Health
Chief Medical Officer

Functional & Regenerative Medicine, Chairman of Scientific Advisory Board, IFM Certified, BMBS BMedSci (Hons) MRCGP MBA DPD DFSRH DOccMed

Health and wellness has been Dr Al Jafari’s passion and at the forefront of his medical practice since the early years of his career. He quickly became disillusioned in mainstream medicine by the perpetual cycle of sicker patients and more medications. Through advanced alternative training, he began to appreciate the root causes of disease, and the underlying importance of lifestyle in the etiology of modern illness. It is his integrative approach to health, transcending beyond the field of traditional medicine, which provides patients with true holistic care.

Dr Al Jafari is originally form the UK where he worked as a Consultant Physician and Member of the Royal College of General Practitioners. Having moved over the UAE in 2015 and based now in Dubai, he is the Medical Director of DNA Health Clinic. Dr Al Jafari’s particular focus is in modifying lifestyle factors, optimizing long-term health and prevention of chronic disease. He offers a broad scope of cutting edge treatment strategies for both adults and children, ranging from diabetes and obesity through to autism and dementia.

‘The Doctor of the future will give no medicine, but will instruct his patients in lifestyle and in the cause and prevention of disease’

 

Specialisations:

  • Peptides
  • Stem Cells & Exosomes
  • Hormonal Therapy
  • Ozone & Plasmapheresis
  • Functional Medicine
  • Cardio-metabolic Disease
  • Autoimmunity
  • Weight Loss
  • Gut Health
Dr Yosef
Dr. Yosef Alsaieq
Family Medicine Practitioner
Functional & Regenerative Medicine

IFM Certified, American Board of Regenerative Medicine Certified
Languages spoken: English, Arabic

Dr Yosef received dual degrees in International Health BSc (Hons) and Medicine (MBBS) from the prestigious University College London. Following his graduation, he pursued further medical training in the field of Internal Medicine, General Practice, Neurology, Cardiology, Surgery, Emergency Medicine by rotating through various prestigious hospitals in the UK.

He is MRCGP (International) certified Family Medicine physician, holds certification from both The American Academy of Regenerative Medicine and The Institute for Functional Medicine (IFM).

Evidence-based medicine is at the heart of Dr Yosef’s practice. His approach is to help people optimise their health, enhance their lifespan, and achieve their health goals from a Functional Medicine perspective, which aims to address the root cause of chronic illnesses.

His areas of expertise include Family and Functional Medicine, metabolic dysfunctions, obesity, diabetes, health optimisation, treatments with NAD+, peptides, exosomes, stem cells, nutritional and life style planning, ozone and various Intravenous (IV) therapies.

Specialisations:

  • Diabetes
  • Food Sensitivities
  • Food and Respiratory Allergies
  • Genetic Testing
  • Health Optimisation
  • Health Screenings
  • Hormonal Optimisation
  • IV Therapy
  • Longevity Science
  • Men’s Health
  • Peptides
Dr Ismail
Dr.Ismail Ahmed

Functional Medicine Practitioner

Functional & Regenerative Medicine

IFM Member, American Board of Regenerative Medicine Certified

Languages spoken: English, Arabic, Mandarin

Dr. Ismail completed his training in the UK, where he became a member of the prestigious Royal College for General Practitioners (MRCGP). With over 13 years of experience, he has developed a unique approach that seamlessly integrates the best of both Eastern and Western medicine. He has continued to deepen his expertise in advanced therapies, becoming certified by the American Academy of Regenerative Medicine and earning a membership with the Institute for Functional Medicine (IFM). This comprehensive training ensures he is well-equipped to guide patients on their journey to optimal health and wellness.

His main interests in clinical practice include chronic disease reversal, focusing on each patient’s biological uniqueness and looking for the underlying imbalance leading to disease.

Dr Ismail offers a broad scope of diagnostic and treatment strategies – these range from personalised health screenings, genetic testing, hormonal optimisation, stem cell therapies, peptides, exosomes, IV/NAD+, ozone therapy and nutritional optimisation.I

Specialisations:

  • Diabetes
  • Food Sensitivities
  • Food and Respiratory Allergies
  • Genetic Testing
  • Health Optimisation
  • Health Screenings
  • Hormonal Optimisation
  • IV Therapy
  • Longevity Science
  • Men’s Health
  • Peptides
Dr Sarah
Dr. Sarah El Ouarti
Functional Medicine Practitioner
IFM Member, American Board of Regenerative Medicine
Languages spoken: English, Arabic, French

Dr. Sarah is an experienced integrative Wellness Physician dedicated to identifying and addressing the underlying causes of health issues to improve overall well-being. Specialising in functional medicine and innovative therapies, she is committed to extending health span and lifespan, thereby fostering vitality and longevity.

Dr. Sarah employs a personalised approach, incorporating lifestyle modifications and advanced treatments, including NAD IV therapy, peptides, ozone therapy, stem cells, exosomes, and comprehensive health screenings. Her goal is to achieve optimal hormonal balance and combat chronic diseases, empowering patients to reach their peak health and vitality.

Specialisations:

  • Health Optimisation
  • Health Screenings
  • Hormonal Therapy
  • IV Therapy
  • Longevity Science
  • Ozone Therapy
  • Peptides
  • Stem Cells
  • Women’s Health
Dr Zeeshan Khan at DNA Health

Dr. Zeeshan Khan

Functional Medicine Practitioner

IFM Member, American Board of Regenerative Medicine

Languages spoken:

English

Dr. Zeeshan, an accomplished medical professional with over sixteen years of cumulative clinical engagement—including more than eleven within the UAE, alongside professional tenures in Saudi Arabia and the USA—has directed multidisciplinary teams emphasizing prophylactic and longevity-oriented medicine, patient safety, and empirically grounded therapeutic frameworks.
 
His expertise encompasses the integrative management of chronic and endocrine pathophysiologies such as diabetes mellitus, dyslipidemia, thyroidal, adrenal, and pituitary disorders, unified under a paradigm of functional and personalized medicine aimed at optimizing systemic health through individualized interventions, lifestyle modulation, and patient-centered education.

Specialisations:
• Diabetes
• Food Sensitivities 
• Food and Respiratory Allergies
• Genetic Testing
• Health Optimisation
• Health Screenings
• Hormonal Optimisation
• IV Therapy
• Longevity Science
• Men’s Health
• Peptides
 
 
Dr Suresh Vassen

Dr. Suresh Vassen

Functional Medicine Practitioner
Integrative Functional Medicine Practitioner AFMCP Certified
Languages spoken: English, Dutch

Dr Suresh Vassen is a DHA/DOH licensed and registered General Practitioner, with 25 years of experience in private practice, specialising in Integrative Functional Mind-Body Medicine, utilising principles of Conventional Western medicine, Ayurvedic medicine, Homeopathy, Chinese medicine. He is AFMCP certified, with the Institute for Functional Medicine.


He is a well-being specialist in Longevity & Rejuvenation, Chronic disease management, Metabolic and Hormonal Balance, Nutrition, Detoxification, Yoga Stretch and Breath Work, and Meditation techniques for managing Chronic Stress and Inflammation.


Dr. Vassen provides a caring and individualized approach to developing a personalized prescription that will guide the patient on a course to optimal health and well-being. His approach to healthcare is characterized by a high degree of collaboration and communication among health professionals. He treats not only the Illness the patient has, but also the patient who has the illness. 

Specialisations:
  • Diabetes
  • Health Optimisation
  • Health Screenings
  • Gut and Liver Health
  • Chronic Stress
  • Women’s health
  • Men’s Health
  • Lifestyle Medicine
  • IV & Ozone Therapy
  • Longevity Science
  • Peptides
Dr. Khalil

Dr. Khalil Serhan

Functional Medicine Practitioner
IFM Member

Languages spoken:

English, Arabic & Russian

Dr Khalil brings a wealth of 20 years of experience as a medical practitioner. Having completed his foundation training from Oxford University Hospitals in the UK , Dr Khalil has gained extensive experience in internal medicine, surgery, and primary care. 

Since moving to UAE in 2016, Dr. Khalil has been practicing integrative and functional medicine with main interest in men’s health, HRT, wellness and anti-aging medicine. Dr. Khalil is also knowledgeable and experienced in utilising cutting-edge therapies, such as peptide and exosome therapy, NAD+ optimisation, and intravenous (IV) nutrient therapies—tailored to each patient’s unique biology and lifestyle. 

Driven by a passion for optimizing human health and longevity, Dr. Khalil empowers patients with the tools, knowledge, and support they need to restore vitality, prevent disease, and thrive at every stage of life. He understands that true health extends beyond simply treating symptoms, which is why wellness forms an integral part of his approach. 

Dr. Khalil recognizes the intricate interconnectedness of the body’s systems and delves beyond conventional treatments to address the root causes of imbalance and promote long-term well-being.

Dr. Khalil prioritizes active listening, empowering individuals to become active participants in their health journey. By combining innovative therapies with a dedication to understanding each patient’s unique needs and goals, Dr. Khalil is committed to helping individuals achieve vibrant health and vitality.

Specialisations:

  • Diabetes
  • Metabolic Syndrome
  • Health Screenings
  • Men’s Health
  • T – R – T
  • NAD+ Optimisation
  • IV Therapy
  • Peptides
  • Longevity Science
  • Dyslipidemia
Dr. Mishika DNA Health (1)
Dr.Mishika Khithani
Functional Medicine Practitioner
IFM & SAFM Certified, Applied Functional Medicine Institute Member

Languages spoken:
English

Dr. Mishika Khithani is a Functional Medicine Physician from Mumbai with a passion for root-cause medicine. With over 7 years of experience, her approach includes integrating clinical and lifestyle medicine with holistic wellness.

She holds an M.B.B.S medical degree from Mumbai, India, a PGDip degree in Clinical Neurology from University College London, London, and Certificates of Higher Education in Functional Medicine from The Institute for Functional Medicine and The School of Applied Functional Medicine, United States.

She is also accredited by The American Academy of Anti-Aging Medicine in BHRT, Longevity with Hormones, and LDN. She specializes in women’s health, hormones, autoimmunity, preventative medicine, allergies, and brain and gut health.

Dr. Mishika employs a nuanced and comprehensive bio-individual approach to her patients’ needs with utmost empathy and understanding, using lifestyle changes and modern treatments like IV therapy, peptides, and ozone therapy.


She trusts each symptom is a form of communication from the mind, body, and soul. She believes that everyone should be seated in the driver’s seat of their health and that the key to good health is sustainable modifications.

Specialisations:

  • Food Sensitivities 
  • Insulin Resistance
  • Gut Health
  • Brain Health
  • Women’s Health
  • Skin and Hair Health
  • Health Optimisation
  • Preventative Health Screenings
  • IV Therapy
  • Peptides

Book your appointment