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What is functional medicine?
Functional medicine is an approach that looks for the underlying causes of illness rather than treating symptoms alone. A practitioner takes a long history, tests broadly, and builds a plan across diet, sleep, stress, movement and - where it's needed - medication.
Medically reviewed by Dr Noyan · March 2026
A decade of intentional care
The idea
The idea begins. Two consultants, frustrated by the pace and impersonality of both NHS and existing private care, decide to build something different. A clinic where time with the patient is never negotiable.
The Opening
Athelas opens its doors on Harley Street with five specialists and a single principle — every patient leaves with a clearer picture of their health than when they arrived.
The Expansion
Athelas expands to 18 specialties and introduces its package model — giving patients a way to access comprehensive care without unexpected costs.
The Standard
The team grows to 14 consultants across 12 specialties. On-site diagnostics added, making same-day results possible for the first time.
Structured dietary and lifestyle change
Structured dietary programmes have substantial trial evidence in type 2 diabetes. In the DiRECT trial, almost half of participants on a primary care weight management programme were in remission at twelve months, without diabetes medication.1 Correcting a measured deficiency in iron, B12 or vitamin D is similarly uncontroversial.
Structured dietary and lifestyle change
Structured dietary programmes have substantial trial evidence in type 2 diabetes. In the DiRECT trial, almost half of participants on a primary care weight management programme were in remission at twelve months, without diabetes medication.1 Correcting a measured deficiency in iron, B12 or vitamin D is similarly uncontroversial.
Structured dietary and lifestyle change
Structured dietary programmes have substantial trial evidence in type 2 diabetes. In the DiRECT trial, almost half of participants on a primary care weight management programme were in remission at twelve months, without diabetes medication.1 Correcting a measured deficiency in iron, B12 or vitamin D is similarly uncontroversial.
"Dr Noyan is extremely knowledgeable and passionate about functional medicine. He immediately put me at ease, taking the time to understand my health issues and discuss my health history. At my follow-up he presented my results, taking the time to explain what they meant and answering my many questions."
“I had acne for years because of PCOS and honestly felt like I’d tried everything. My GP just gave me the pill, antibiotics, and creams. Dr. Noyan really took the time to figure out what was going on in my body. He ran all the right tests and he is also incredibly knowledgeable. He gave me a tailored solution that actually worked for me. My skin is now 90% clear and I’ve been on the programme for 7 months."
"Dr Noyan is very knowledgeable and has a talent for putting people at ease. His ability to understand my unique needs and develop a personalised plan for me have been life changing. Ros (the health coach) is very supportive and a great source of information. I was told by the NHS specialist that I would need to take immunosuppressants for the rest of my life. After only 6 weeks of this programme many of my blood tests are back in range already (without immunosuppressants). I am amazed by how much better I feel and cannot recommend this programme enough.
"For years, I had been dismissed and told it was all in my head. I decided to commit to a six-month program tailored specifically to my needs. Yes, it was an investment, but worth every penny. After my initial consultation and comprehensive tests, Dr Noyan provided a detailed report explaining what was really happening in my body and why. Thanks to his expertise and guidance, my life has completely changed for the better. Throughout the program, I had incredible support from my coach Ros."
"My Consultation with Dr Dr.Noyan was fantastic . He went through everything in great detail with all the issues I've been having. I was very worried about my health before I went to see him. But came out feeling more relaxed about it. With a good plan in place moving forward and hopefully getting rid of all the symptoms for good."
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terra–tory™ has transformed our brand’s online presence. The eco-conscious design aligns perfectly with our values.
The attention to detail in terra–tory™ is impressive. It’s clear that this template was built for businesses that prioritize sustainability and quality.
Using terra–tory™ has elevated our customer experience. The template’s sustainable focus resonates with our audience and sets us apart.
As a green business, we wanted a website that reflects our commitment to the planet. terra–tory™ delivered on every level—beautiful design.