The Vitality Protocol: A Personalized 30 Day Plan to Reclaim Your Energy Naturally

Belinda Clark is a nutritional biochemist and certified functional medicine practitioner with over fifteen years of clinical experience specializing in metabolic health, sleep science, and mitochondrial function. She holds a Master of Science in Human Nutrition from the University of London and completed postgraduate training in functional medicine at the Institute for Functional Medicine in Seattle, Washington.

Clark spent the first decade of her career in clinical research at University College London, where she contributed to studies on the relationship between circadian disruption and metabolic syndrome in shift workers. Her research has been published in peer reviewed journals including the Journal of Clinical Endocrinology & Metabolism and Sleep Medicine Reviews. She transitioned from research to clinical practice after recognizing that the gap between scientific discovery and practical application meant most people never benefited from what the science had already proven.

Her clinical approach integrates biochemistry, sleep physiology, and stress neurobiology into personalized protocols that treat the root causes of chronic fatigue rather than managing symptoms. She has worked with over three thousand clients ranging from corporate executives and professional athletes to parents managing the exhaustion of caregiving while rebuilding their own health. Her private practice in Bath, England, focuses on multi week intensive programs that combine laboratory assessment, dietary intervention, sleep optimization, and nervous system regulation.

Clark is the author of The Vitality Protocol, which distills her clinical methodology into a self-guided program accessible to anyone seeking to reclaim their energy. She writes regularly on energy metabolism and circadian health for publications including The British Medical Journal blog, Nutrition Insights, and The Sleep Scientist. She has appeared as a guest expert on BBC Radio 4's Inside Health and the FoundMyFitness podcast.