Maria Buchinger (* 21 May 1916 in Flensburg, Germany; † 12 March 2010 in Marbella, Spain)[1] was a German proponent of therapeutic fasting.
Together with her husband, Helmut Wilhelmi, Buchinger opened fasting clinics in Überlingen, Germany and Marbella, Spain.
With her husband she opened Buchinger Wilhelmi clinic in Überlingen on Lake Constance in 1953.
Her son Raimund Wilhelmi and his wife Francoise Wihlemi de Toledo managed the clinic in Überlingen.
Maria spent her remaining years in Marbella, where she died peacefully on 12 March 2010.