We Do Not Offer Testing Only Services

As the leading functional medicine clinic in the UK, we support our clients in optimising their health and tackling illnesses. To do this we offer tests that help us identify the root cause of their health concerns. With that in mind, our testing services are only for patients under consultation with our expert practitioners.

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London Clinic of Nutrition
Google 4.7 220+

Break Free From Poor Health with Functional Medicine at the London Clinic of Nutrition

Get back to feeling your best with the UK’s leading Functional Medicine Clinic and our expert Nutritional Therapists.

London Clinic of Nutrition Leaf

Your Journey to Feeling Great


Book a Discovery Call

Speak with a nutritional expert to explore your options.

Personalised Recommendations

In your initial consultation, our Functional Medicine team identifies root causes by listening to your concerns and advising necessary tests.

Custom Treatment Plans

We’ll then craft a unique plan tailored to your body’s needs based on test results.

Feel Great Again, 90% Symptom Relief

Regular check-ins ensure your progress, guiding you back to optimal well-being.


We aim to get to the root cause of your symptoms using personalised nutrition.


We offer a full range of infusions to revitalise health and help reverse chronic disease.


We are one of Europe’s largest functional and integrated medicine clinics.

Our highly qualified team of practitioners specialise in using an integrative approach to assessing, identifying and resolving the root cause of your health concern.

We offer a full range of services in-clinic, or online, so rest assured you’re in safe hands.









Health conditions we support

We have helped people with many health conditions such as stress and fatigue, auto-immune disorders, digestive health, fertility, thyroid health, PCOS, weight loss and hormone imbalances.

Autoimmune Diseases occur when the immune system mistakes some part of the body as a pathogen and starts to attack itself. We can help you manage and put them into remission

The thyroid is highly sensitive to the slightest alterations in your health and has an influence on hormonal function throughout the body, including the metabolism and repair of every cell.

Chronic Fatigue is debilitating disorder that leaves you feeling exhausted all the time, no matter how much rest you get. The good news is there’s plenty we can do to help.

Looking for Lyme Disease treatment in London?  We’re the UK’s leading Lyme Disease treatment clinic having helped hundreds of clients to manage and cure themselves of this exhausting and much-misunderstood condition.

Most people apply potions and lotions to their skin when they have skin problems, but this is only helping the issue on a very superficial level. We’ll dig deeper to resolve it for good.

Our Polycystic Ovary Syndrome treatment advice is market-leading and tailored to each individual’s circumstances, helping you to control your symptoms and improve your fertility.

Health and Nutrition Resources




(based on 221 Google Reviews)

Isabel BrittainIsabel Brittain

14 October, 2023

My experience of working with Helen Williams and the London Clinic of Nutrition has been entirely positive. I have found Helen’s nutritional recommendations to be invaluable and will apply what I’ve learnt for the rest of my life. Working with her has made a HUGE difference. I have more energy, haven’t been ill, understand my body a whole lot better and feel more optimistic about my health generally. Helen’s knowledge is extensive, her test recommendations were spot on. The supplements and dietary alterations she suggested have made a very real difference to my day-to-day life. Her recommendations are also practical, realistic and I found them easy to follow. Since working with her my friends have commended on how well I’ve been looking! Helen’s approach is steady and realistic and her knowledge extensive. What is also great is that this knowledge can be applied going forward for the rest of one’s life. Helen is very pleasant to work with - I felt very safe in her hands. I have no hesitation in recommending her and the London Clinic of Nutrition who I found to be courteous and supportive. It has been money very well spent!

Tristia PropertiesTristia Properties

27 September, 2023

At the start of this year I began working with Jacqui for histamine intolerance issues. From the onset she has been absolutely fantastic, I cannot recommend her and the clinic highly enough. She has been an absolute delight to work with and can happily say that I am now feeling so much better, her expert guidance has made this possible. Thank you.

Maria IgnatovaMaria Ignatova

20 December, 2023

I was hit with MCAS and gut health issues in the beginning of 2023. Despite all the help from the NHS, consultations with a gastroenterologist, immunologist and another MCAS specialist, measures suggested by them were not helping me. I started working with Paul in August 2023. Thanks to the healing steps recommended by him I went from being bedridden in July to being able to exercise in September (I was unable to exercise for 6 months prior to that). Apart from MCAS Paul helped me to find a root cause and a solution for my SIBO, fungal overgrowth and gut dysbiosis, as well as untangle a complicated puzzle of my tricky genetic profile, uncover past trauma and enable me to heal my nervous system. My healing journey took several months and I’m still tackling the last bits, but I’m immensely grateful to all the support from Paul and confident my complete recovery is around the corner. ☀️ I want to extend my gratitude to other members of the clinic. Everyone I interacted with were always attentive, empathetic and incredibly helpful. 🤗 Next time I have a tricky health issue, I’ll seek functional medicine help by default over a traditional healthcare approach.

Kira EdwardsKira Edwards

29 August, 2023

I worked with Helen at LCON to address Thyroid issues (auto immune in nature), chronic stomach issues (constipation and bloating), severe period issues which impacted my daily routine, headaches and low energy. My health was at rock bottom where my mental health was now being impacted, when I decided I had nothing to lose by paying and getting help privately, although I was extremely worried about doing so with many people telling me I was wasting my money! It was the best thing I have done, and I am only gutted I did not take the plunge and seek the help I needed sooner. Helen has been brilliant and the recommendations and plans she gave me has seen (self-rating) approximately 85% of my symptoms cleared up / in a place where I can now manage them successfully knowing my triggers (been on the plans since April 2023). I am now back in the gym which is what I enjoy, I am tolerating a LOT more food than ever before, my periods are still a work in progress but a lot more manageable where I am no longer needing to take anti-inflammatory medication and overall feel I have mental clarity and calmness. I had two comprehensive tests done which allowed the support I needed to be tailored to me, so you need to ensure you budget for tests on top of consultation costs, plus monthly allowance to cover your supplements which I had luckily prepared for. My only feedback to LCON would be to advise clients to book a support call in a couple of weeks after starting any supplements, as I had lots of questions and actually reacted to a supplement (luckily the reception put me in touch with Helen straight away who advised to stop the supplement until our support call) - but the support calls were often weeks away when booking, so preparing a support call would be good to reassure clients if they had any queries or concerns early on in the plan. Biggest advice to anyone who is thinking about getting help, do it ,don't wait any longer to feel better - but be ready to commit as you will not see the results if you are not ready to give 100%! Huge thank you to Helen who I can not thank enough for everything you have done, and the clinic staff for all your help and support. Kira

Angelina CunninghamAngelina Cunningham

28 November, 2023

Following a recent move, I encountered significant challenges with my mental health and immune system, whilst navigating the demands of my final year at university. The discovery of mold in my living space left me uncertain about the necessary health precautions. In my search for guidance, I came across The London Clinic of Nutrition. Under the expert guidance of Lelani Loubser, I experienced a transformative journey. Through targeted dietary adjustments, supplementation, and stress mitigation techniques, my mold levels, initially alarmingly high, markedly diminished within less than a year. The tangible improvement in my overall well-being is undeniable, and the collaborative process with LCON has proven to be exceptionally supportive. I extend my sincere gratitude for the invaluable assistance, knowledge, and support demonstrated by Lelani. My journey with LCON has been instrumental in restoring not only my health but also my overall quality of life. Highly recommend their services for anyone facing similar challenges.

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