Preventive Health Collaboration

About us

Most diseases of modern life can be prevented. Many can be reversed.

We build the evidence, teach it widely and campaign for policies that put prevention first.

Our vision

A country where the diseases of modern life are prevented, not just treated.

Our mission

To empower, inspire and educate people that most chronic diseases can be prevented and reversed by maintaining good metabolic health through sustainable lifestyle changes.

What we stand for

Four principles

  1. Common risks, many outcomes

    Many of the diseases people fear most share common risks we can change, from smoking and alcohol to what we eat, how we move and sleep, chronic stress and our wider circumstances. Improve them and the risk of several diseases falls at once.

  2. Evidence first

    We only claim what the evidence supports, say openly how strong it is and link every figure to its source.

  3. For prevention, not against treatment

    We make the case for prevention and work alongside doctors and the NHS. We never ask anyone to stop treatment they need.

  4. Independent

    We follow the evidence, not a diet tribe or a sponsor. We promote no products, and we work with every party, never against one.

Our story

Ten years of prevention

  1. 2016

    PHC Founded

    The Public Health Collaboration is founded as a UK registered charity in March 2016.

  2. 2016

    Healthy Eating Guidelines Review

    Our review of healthy eating guidelines is published in May 2016.

  3. 2016

    First Annual Conference

    The first PHC annual conference is held in Birmingham in June 2016.

  4. 2017

    Ambassadors Programme

    The volunteer Ambassadors programme is launched in September 2017.

  5. 2018

    Conference at RCGP

    The annual conference is held at the Royal College of General Practitioners for the first time in May 2018.

  6. 2019

    RCT Summary Table

    Our summary table of randomised controlled trials comparing low-carb to low-fat diets is published in February 2019.

  7. 2020

    Sugar Infographics

    Dr David Unwin's sugar infographics are published on the PHC website in several languages for free download in May 2020.

  8. 2021

    The Lifestyle Club Pilot

    In collaboration with X-PERT Health, The Lifestyle Club is piloted by NHS GP practices around the country in June 2021.

  9. 2022

    Real Food Runners

    Our informal running club, Real Food Runners, is launched in April 2022.

  10. 2023

    Scottish Conference

    The first Scottish annual conference is held in Edinburgh in March 2023.

  11. 2024

    HSJ Partnership Award

    The Lifestyle Club is awarded Silver for Primary Care Project of the Year in the HSJ Partnership Awards in March 2024.

  12. 2025

    First Liberate Paper

    Frontiers in Psychiatry publishes the first Liberate paper detailing outcomes of the ultra-processed food addiction course in October 2025.

  13. 2026

    A new chapter

    Ten years on, we become the Preventive Health Collaboration, after celebrating our 10th anniversary at the Nourish to Flourish conference in May 2026.

Thank you, Sam

Sam Feltham founded the Public Health Collaboration in 2016 and led it for ten years. Everything in this story grew from the work he started, and we are grateful to him.

Our people

The people behind the work

Board of Trustees

An independent board, responsible for governance and strategy.

Dr David Jehring

Dr David Jehring

Chair of Trustees

David is the CEO of Black Pear Software, a medical software house putting joined-up health and care records into the hands of patients and frontline staff. Alongside a 20-year career as an NHS family doctor, David designed the first Windows GP clinical system in the UK.

Olivia Khwaja

Olivia Khwaja

Co-Vice-Chair

Olivia has been a Consumer Strategist and Marketing expert for large brands for over 20 years, delivering award-winning campaigns at British Airways and British Gas. She has now directed her passion towards human health transformation.

Graham Phillips BPharm, FRPharmS

Graham Phillips BPharm, FRPharmS

Co-Vice-Chair

Graham is a Fellow of the Royal Pharmaceutical Society and Superintendent of a multi-award-winning pharmacy group. He has styled himself as 'The Pharmacist who Gave Up Drugs' and his project ProLongevity combines lifestyle interventions and de-prescribing.

Professor Susan Fairlie RN, BSc (Hons), MSc

Professor Susan Fairlie RN, BSc (Hons), MSc

Trustee

Susan is a clinician and organisational development specialist with extensive NHS experience. Her clinical leadership programmes have been recognised with the CNO Silver Medal for Nursing Excellence, and she is a Visiting Professor at the University of East London.

Giles Corby

Giles Corby

Treasurer

Giles is a chartered accountant based in Exeter who uses his skills with numbers to help clients make a difference. He is deeply interested in health, regenerative agriculture, and wildlife restoration.

Catherine Rogers

Catherine Rogers

Trustee

Catherine is an integrative therapist with over 25 years' experience, using Cognitive Behavioural Therapy (CBT), NLP, EFT and nutrition to bridge physical and mental health. She is one of a handful of UK-based practitioners to have completed Dr Bredesen's ReCODE health coach training and is the author of Gut Well Soon. She founded Reset Your Health and Reset Your Brain Health to help others reduce toxic load and sustain lifestyle change.

Management team

Led by our Chief Executive, Steve Bennett.

Steve Bennett

Steve Bennett

Chief Executive

Steve leads the Preventive Health Collaboration as Chief Executive. He turned his own health around after living with obesity for over 25 years, founded Health Results and the Bennett Foundation, and is an adventurer and the author of Primal Cure and Fat & Furious.

Sarah James

Sarah James

Operations Manager

Sarah leads delivery of The Lifestyle Club and supports the day-to-day running of the charity. Having discovered how lifestyle change can transform lives when her family transitioned to a real food diet, she hopes her role at PHC will help other families discover this too.

Ellen Bennett RD

Ellen Bennett RD

Liberate Operations Manager

Ellen is a Registered Dietitian, PhD researcher, and founder of the Liberate programme, working at the intersection of nutrition and addiction. Her background combines clinical practice, research, and lived experience of addiction recovery.

Elizabeth LePla

Elizabeth LePla

Volunteer Manager

Liz recruits and supports volunteers in delivering lifestyle courses throughout the UK. Having been diagnosed with Type 2 diabetes eight years ago and successfully put it in remission, she is passionate about helping others do the same.

Shauna Davis

Shauna Davis

Social Media Manager

Shauna leads content strategy and digital growth to support PHC's mission. With a background in social media strategy and AI-driven marketing, she specialises in creating content that educates, engages, and drives meaningful behaviour change.

Patrons

Supporters who champion our work.

Hannah Sutter

Hannah Sutter

Patron

Hannah is a solicitor-turned-entrepreneur who founded Natural Ketosis in 2004 and authored 'Big Fat Lies' in 2011 to challenge government dietary advice. She also founded The Natural Low Carb Store.

Giancarlo & Katie Caldesi

Giancarlo & Katie Caldesi

Patrons

Giancarlo and Katie are restaurateurs, cookery teachers and authors running two restaurants and a cookery school. They appear regularly on MasterChef, BBC Breakfast and other programmes.

Tom Redwood

Tom Redwood

Patron

Tom co-founded fu:di after transforming his health, losing weight and normalising his blood sugars within 3 months through a low-carb approach. He recreates favourites like ketchup, bread and granolas.

Ben Calderhead

Ben Calderhead

Patron

Ben is a former Imperial College mathematics and statistics academic who co-founded fu:di, pairing data expertise with recipe development to create metabolically supportive foods.

Dr James Goolnik BDS, MSc

Dr James Goolnik BDS, MSc

Patron

Dr Goolnik is a dentist, educator and founder of Optimal Dental Health. Former President of the British Academy of Cosmetic Dentistry, he lectures internationally on the mouth-body connection.

Join the prevention movement

Whether you are a doctor, a researcher or someone who wants to stay well for longer, there is a place for you at PHC.