Dr. Koch was the main investigator of the original (The Collaborative Study of Children Treated for Phenylketonuria (PKUCS)) study designed to answer an questions whether is it safe to stop the low protein diet in childhood or not.
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German doctor Horst Bickel (1918. – 2000.) was responsable for discovering the first dietary therapy for phenylketonuria (PKU) patients. Nutritional formula, discovered by Dr. Bickel and his colleagues in 1951., improved the life quality of thousands of PKU patients, helping them to lead a normal and healthy life.
Norwegian physician and biochemist Dr. Ivar Asbjørn Følling (1888. – 1973.) will forever be remembered as a man who discovered Phenylketonuria (PKU) disorder and as a “father” of the first PKU test. He is also unofficially considered as the most important medical scientist not to receive the Nobel Prize for Physiology or Medicine.