Rudolf Rafael Kolisch

Rudolf Rafael Kolisch (10 December 1867 – 7 April 1922) was an Austrian physician.

Besides lecturing during the sessions of the university he practised medicine in Karlsbad during the summer months.

[2] Kolisch was one of the first authors in Germany to support the view of French physiologist Claude Bernard that diabetes is caused by increased formation of sugar in the tissues.

[3] He was the principal champion of a vegetarian diet and a restriction of protein to treat diabetes.

[4][5][6] Kolisch's work had a strong influence on the development of diabetes therapy in the two decades prior to the first use of insulin in 1922, a time when the most important problem in diabetes therapy was balancing the ratio between protein and carbohydrates.