
Photo: functional-medicine.associates
Functional Medicine Associates
London · Marylebone · updated 5 July 2026
Prices checked once on record, 5 July 2026.
- Treatments
- 7
- Categories
- 2
- From
- £190
- With pricing
- 6
Key facts
- Discovery Consultation (60 min)
- £380
- Comprehensive Consultation
- £760
- Foundation Programme (4 to 5 months, 6 hours consultation)
- £3,200
- DNA Health Pathway
- £1,600
- DNA Mind Pathway
- £1,600 (30 genes tested)
- IFM Certified Practitioners
- Yes, team of 6
- Companies House number
- 07538976 (incorporated 2011)
- Location
- 51 New Cavendish Street, Marylebone, London W1G 9TG
Functional Medicine Associates operates from 51 New Cavendish Street in London's Marylebone, close to the Harley Street medical district. The clinic was founded by Pete Williams (M.Med.Sci, CSCS), who was part of the first worldwide cohort awarded Institute for Functional Medicine Certified Practitioner status in 2013 and is a Bredesen-trained practitioner. The wider team of six holds IFM certification alongside qualifications in personalised nutrition, osteopathic medicine, pain neuroscience, microbiome health, and clinical pharmacy, with individual practitioners focusing on areas such as gut health, hormones, chronic pain, cardiovascular disease, and cognitive health.
The clinic structures its services in tiers. Single consultations begin with a one-hour Discovery Consultation at £380 and a Comprehensive Consultation at £760, with follow-ups at £190 for 30 minutes or £380 per hour. For ongoing care, the Functional Medicine Foundation Programme and the Preventative Cardiology Foundation Programme each run 4 to 5 months, include 6 hours of consultation time, and are priced at £3,200, payable as a £1,600 deposit plus £1,600 midway through. Blood work, lab tests, and supplements are charged separately.
Two genomic pathways are offered at £1,600 each: the DNA Health Pathway, which analyses 8 biological processes and returns a 30-page report, and the DNA Mind Pathway, which tests 30 genes linked to cognitive and mood conditions and includes the CNS Vitals neurocognitive assessment. Both use at-home sample collection through the HealthPath Pro platform, with results in up to 4 weeks and a recorded video consultation to review findings. The registered entity is Functional Medicine Associates Ltd (Companies House number 07538976), incorporated in 2011.
7 treatments across 3 categories in the menu and pricing section below.
Compiled from published research and each venue's own published information. Information only, not medical advice.
Information compiled from the clinic's website, last checked 5 July 2026.
Treatments & pricing
Sourced from the clinic's published menu where available.
Team
6 practitioners listed where available.
Deirdre NazarethMSc Ost Medicine · MSc Pain Neuroscience · IFM Certified Practitioner · Dip Osteopathy · Dip Naturopathy · IIN Certified Health Coach
Chronic pain · Gut health · Hormones · Skin · Moulds and mycotoxins
MSc Ost Medicine · MSc Pain Neuroscience · IFM Certified Practitioner · Dip Osteopathy · Dip Naturopathy · IIN Certified Health Coach
Chronic pain · Gut health · Hormones · Skin · Moulds and mycotoxins
Started with a biopsychology degree; worked in human genetics research and fitness; mould-literate practitioner certified by the Kharrazian Institute.
Despina GiannopoulouMBA · MSc Personalised Nutrition · MSc Microbiome and Health · IFM Certified Practitioner · Certified Gluten Practitioner · Bulletproof Human Potential Coach
Mind-body vitality · Healthy aging · Blood sugar balance · Gut health
MBA · MSc Personalised Nutrition · MSc Microbiome and Health · IFM Certified Practitioner · Certified Gluten Practitioner · Bulletproof Human Potential Coach
Mind-body vitality · Healthy aging · Blood sugar balance · Gut health
30 years of corporate experience (Morgan Stanley, Deloitte) before a career change to healthcare in 2016.
Sue CampMSc Personalised Nutrition · IFM Certified Practitioner · mBANT · CNHC Reg
Gut health · Hormone health · Weight management · Adrenal health · Thyroid health
MSc Personalised Nutrition · IFM Certified Practitioner · mBANT · CNHC Reg
Gut health · Hormone health · Weight management · Adrenal health · Thyroid health
IFM certification in 2019; over 5 years in clinical education with functional medicine testing companies.
Dr. Binyamin AdioMBBS · MPharm (Hons) · IFM Certified Practitioner
Internal medicine · Medicines optimisation · Acute care · Nutrition
MBBS · MPharm (Hons) · IFM Certified Practitioner
Internal medicine · Medicines optimisation · Acute care · Nutrition
Clinical pharmacist who qualified as a medical doctor from King's College London.
Administrations (2)expand
Pete WilliamsFounder · M.Med.Sci · CSCS · IFM Certified Practitioner · Bredesen Trained Practitioner
Corporate burnout · Cardiovascular disease · Brain health · Gut health · DNA testing
Founder · M.Med.Sci · CSCS · IFM Certified Practitioner · Bredesen Trained Practitioner
Corporate burnout · Cardiovascular disease · Brain health · Gut health · DNA testing
Exercise and medical scientist with over 20 years of functional medicine experience.
Shelley WilliamsPractice Manager · BSc (Nutrition & Health) · Functional Medicine Certified Health Coach
Practice Manager · BSc (Nutrition & Health) · Functional Medicine Certified Health Coach
Former NHS Community Nutritionist; health coach trained through the Functional Medicine Coaching Academy.
Facility
Conditions treated
Health areas Functional Medicine Associates states it works with. General information, not a treatment claim.
Hormone & metabolic
General
Show all 32 conditions
Hormone & metabolic
General
From @petewilliams_fma on Instagram

A new study from Brazil has looked at calls muscle strength and endurance in the general population. Researchers have developed a calculator https://achillestendontool.com/HRET which allows you to estimate more accurately what would be expected for someone of your weight, height, sex and activity l

This is a real cracker of a sequence for not only your legs, but the sort of inside of your legs, it gives you some really good internal rotation of the femurs or really good for sort of stretching you around the hips and obviously we get a slight lunge position. So pretty much working you through t

The stairs are always great for working out because they provide work against gravity. And of course, that makes it a little bit harder. This is a lateral speed skater. You are crossing your feet like a speed skater as you go up the stairs, very much more involves lateral side of your hips inside th

Sometimes we are going to fall and we’re going to find ourselves probably on our back a little bit discombobulated and probably injured to some degree. So one of the drills that we want to be able to do is at least be able to work the floor so that you can get to a position where you can stand up. A

The tibialist walk is one of the most effective exercises for reducing falls and really one of the most simple. All you’ve got to do, as I said, is walk forward, and you’ve got to lift your toes up quickly and powerfully, as if they want to touch your shins. And it is the muscle on the side of the s

So this was taken on day five of my jaw recovery. I’ve stopped the antibiotics, and now I’m going to keep the strain specific probiotic, where I’m also looking at ways to create more and more prebiotics. And this meal, particularly cooking up rice and potatoes and letting them cool overnight in the
Practical information
- Getting there
- Marylebone · Oxford Circus and Bond Street Underground stations are within walking distance
- Website
- functional-medicine.associates
- Certifications
- Institute for Functional Medicine (IFM) Certified Practitioners, Bredesen Trained Practitioner (Pete Williams)
- Consultation
- Required before first session
Location
51 New Cavendish Street, London W1G 9TG, United Kingdom
51 New Cavendish Street, London W1G 9TG, United Kingdom
Open in Google MapsAbout the organisation(expand)
- Legal entity
- FUNCTIONAL MEDICINE ASSOCIATES LTD
- Companies House
- 07538976
In the press
- Are we right to bank on collagen? · Women's Health
- How to get fit after 40, from cold water dips to gardening · iNews
- What Are The Different Muscle Fiber Types? · Live Science
- 6 Reasons why you haven't had covid yet · Marie Claire
- How to support your immune system with food, movement and self-care · Evening Standard
- Interview with Functional Medicine Leader Pete Williams · Oral DNA
Frequently asked
- How much does a consultation at Functional Medicine Associates cost?
- A one-hour Discovery Consultation costs £380 and a Comprehensive Consultation costs £760. Ad-hoc follow-ups are £190 for 30 minutes or £380 for an hour. Payment is required 3 days before the appointment.
- What does the Foundation Programme include and cost?
- The Functional Medicine Foundation Programme runs 4 to 5 months and includes 6 hours of consultation time across an initial consultation, progress and support sessions, health coaching, a lab review, and a final consultation. It costs £3,200, paid as a £1,600 deposit plus £1,600 midway through. Blood work, lab tests, and supplements are charged separately.
- What DNA testing does Functional Medicine Associates offer?
- Two pathways at £1,600 each: the DNA Health Pathway analyses 8 biological processes and returns a 30-page report, and the DNA Mind Pathway tests 30 genes linked to cognitive and mood conditions and includes the CNS Vitals neurocognitive assessment. Both use at-home sample collection via HealthPath Pro, with results in up to 4 weeks.
- Where is Functional Medicine Associates located?
- The clinic is at 51 New Cavendish Street, London W1G 9TG, in Marylebone near the Harley Street district. Oxford Circus and Bond Street Underground stations are within walking distance.
- Who runs Functional Medicine Associates?
- It was founded by Pete Williams (M.Med.Sci, CSCS), part of the first worldwide cohort of IFM Certified Practitioners in 2013. The team of six includes practitioners with IFM certification and qualifications in personalised nutrition, osteopathic medicine, pain neuroscience, microbiome health, and clinical pharmacy.
- Do I need a consultation before starting a programme?
- Yes. Single consultations can lead into the clinic's Foundation Programme for ongoing care, and programmes begin with an initial consultation and medical history analysis via the HealthPath Pro platform.
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