Alex Howard Group

Our Team

Martina Cowen

BsC Psych (Open) Dip CNM Nut mBANT rCNHC

Martina Cowen is a Registered Nutritional Therapist and Mind-Body Eating Coach with a BSc (Hons) in Psychology. She graduated from the College of Naturopathic Medicine and, as a member of the OHC nutrition team, she enjoys supporting clients with personalised integrative approaches to health.

Her work combines functional nutrition with the psychology of eating, helping clients understand the deeper drivers behind cravings, habits, and their relationship with food. She further developed this approach through her training as a Mind-Body Eating Coach with the Institute for the Psychology of Eating, strengthening her understanding of the link between physiology, mindset, and behaviour.

Martina previously held a Clinical Education and Support position with Genova Diagnostics, where she worked closely with practitioners to interpret functional testing and apply them effectively in clinical practice. This experience underpins her strong, practical use of advanced laboratory testing in her work today.

She is also a lecturer at the College of Naturopathic Medicine, where she teaches and supports the next generation of practitioners. Martina has a particular interest in complex and chronic presentations, including mould-related illness, fatigue, and digestive health. She is known for her warm, client-centred approach that combines science with compassion.

Outside of her work, Martina enjoys spending time at her allotment, and values a slower, more grounded approach to health. Martina is a keen runner and is often accompanied by her dog on her explores of the countryside.

Our Team

Bebe Kohlap
Systems Manager

Bebe entered into nutrition quite unexpectedly when she went to an open day at the Institute for Optimum Nutrition, just to...

Charlotte Thomson

Charlotte initially trained as a musician and worked as a performer and teacher for several years before embarking on...

Claire Sehinson
Head of Research and Protocol Development

Claire is an educator, researcher and functional medicine trained nutritional therapist. Claire has over a decade of...

Coriander Stone
New Client Co-ordinator

Coriander is a nutritionist specialising in complex health conditions with over 12 years of experience...

Denise Stillie

Originally from Scotland, Denise worked as a music journalist before becoming a web developer for The Guardian newspaper...

Dr Alex Howard
Founder and Executive Chairman

Dr Alex Howard is Founder & Executive Chairman of The Optimum Health Clinic after his own struggle with ME/CFS...

Next Up:

Our Psychology Department

Continue Reading