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Scientists develop a test to test sugar in the urine.
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French physician, Apollinaire Bouchardat, realized that his diabetic patients' symptoms were improved by rationing, which caused him to develop a date as treatment
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Oskar Minkowski and Joseph von Mering showed the removal of a dog's pancreas could induce diabetes.
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Georg Zuelzer found that injecting pancreatic extra into diabetics could help control their diabetes.
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Fad diets (oat-cure, potato therapy, and starvation diet) were used to treat diabetes.
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Elliott Joslin wrote The Treatment of Diabetes Mellitus, which said that fasting diet combined exercise could reduce the risk of death in diabetics.
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Frederick Banting and his colleagues used insulin to successfully treat a diabetic patient, which he won the noble prize for the following year.
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Insulin began to be produced commercially
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J.J. Able was the first person to crystallize insulin
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Protamine zinc insulin was introduced as a longer lasting insulin.
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Lente insulins were introduced as another longer lasting insulin
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Insulin is still being used today to treat diabetes