Doctor in Medicine Maximilian Bircher-Benner (1867-1939)
The ethically and scientifically dedicated physician and researcher discovered the substantial benefits of a balanced diet of raw vegetables and fruit and regulative therapy. In 1905 he published his first and much noticed dietetics doctrine.
At that time he proved, both clinically and with the support of the second law of thermodynamics, the entropy law. It is not the caloric energy of food but rather the quantity of energy contained by food which is crucial to keep in good health and to recover.
He also explained that the energy of raw vegetal living cells is similar to sunlight, and called these vegetal cells light accumulators. Later he divided them in four categories, according to their biologic affinity to photosynthesis. These four categories became the basis of his dietetics.