11/05/2026
Her Life’s Journey: From Patient to Pioneer
Françoise Wilhelmi de Toledo (1953–2026)
Françoise Wilhelmi de Toledo first encountered therapeutic fasting at the age of 17. At the time, she was searching for change. In her own words, she felt “at odds” with herself and the world around her. After reading a book about fasting, she decided to try it herself. The experience stayed with her.
Years later, she described that first fast as a revelation — not simply physical, but deeply clarifying. During the fasting period, she felt lighter, more awake, and more attentive to herself. What began as a personal experience gradually became a lasting question: what happens to the body and mind during therapeutic fasting, and why?
This question eventually led her to study medicine in Geneva and later to Lake Constance, where she came to the Buchinger Wilhelmi in Überlingen for further fasting periods while preparing for her medical examinations.
At Buchinger Wilhelmi, she encountered a way of thinking about health that was both medically grounded and deeply human. The therapeutic fasting method was not approached as restriction, but as a structured process — one combining medical care, nutrition, movement, reflection, and stillness.
During this period, she met Raimund Wilhelmi, grandson of Dr Otto Buchinger. They married in 1982. Together, they would go on to shape the next chapter of Buchinger Wilhelmi.
For her, therapeutic fasting was never simply about abstaining from food. It was about creating the conditions for clarity, renewal, and lasting change.
Over the following decades, Françoise Wilhelmi de Toledo became Medical and Scientific Director of the clinics and helped establish therapeutic fasting within the field of evidence-based and integrative medicine. Her work united clinical research with a whole-person understanding of health — an approach that continues to guide our work today.