About Us

Andrew and Abi Tunstall are the founders of SHAPEFIXER and passionate advocates for health, resilience, and personal transformation. With a multifaceted background as a nutritionist, elite athlete and former science teacher, Andrew combines professional expertise with personal experience to inspire others to overcome health challenges and live their best lives.

Andrew's Story

Andrew’s health journey is one of determination and defying the odds. Faced with the prospect of heart surgery and a hip replacement in his late fifties, Andrew declined both and instead turned to lifestyle and nutrition strategies. By making informed, science-backed decisions, Andrew reversed hip arthritis and reclaimed his ability to run, proving that the right approach can achieve remarkable results.

Professional Expertise

With a professional background in biology and biochemistry, Andrew’s scientific training has equipped him with a deep understanding of the human body and its needs. While he recognizes the role of medication in managing health, he firmly believes that diet and lifestyle adjustments are underutilized tools for combating, limiting, and even reversing metabolic diseases and the effects of aging. Through SHAPEFIXER, Andrew shares these insights to help others take control of their own health and well being.

Personal Achievements and Interests

Beyond his professional pursuits, Andrew has achieved international success as an elite athlete, demonstrating the importance of perseverance and goal-setting. His experiences in sport not only honed his physical abilities but also reinforced the mental discipline and resilience that he now teaches others.  As a former science teacher, he has a passion for educating and helping others understand complex topics in an accessible way. He is an avid learner, staying up-to-date with the latest research in nutrition and health science.

A Mission to Empower

Through SHAPEFIXER, Andrew helps people—particularly those over 45—address stubborn weight gain and health conditions often attributed to aging but deeply linked to lifestyle and diet. Whether through his engaging YouTube videos, a YouTube membership program or personalised 1-on-1 coaching offers, Andrew provides the tools and guidance needed for dramatic and sustainable health transformations.

Join Us on Your Health Journey

Andrew’s vision is to empower individuals to overcome health challenges and live vibrant, fulfilling lives. His personal journey and professional expertise make him a relatable and trusted guide, and his dedication to helping others is at the heart of everything he does.
Join Andrew and the SHAPEFIXER community today and take the first step toward reshaping your health and your life.

How Can We Help?

Personal Coaching:


Your fastest route to better health!

Schedule an online one-on-one consultation to discuss your health concerns and agree a strategy to manage yourself to optimal health with less reliance on medication and surgery.

Join the YouTube Membership:


1) Priority response to your health and nutrition questions.

2) Weekly members-only videos that keep you updated on the latest nutrition news and where your questions are discussed.

Watch Our YouTube Videos:



Access free, in-depth videos packed with actionable advice on health, nutrition and lifestyle changes.