Assessment of the level of nutrition. Urinary excretion of aneurin at varying levels of intake

Abstract

THE estimation of aneurin in the urine was suggested by Harris & Leong [1936] as a method of assessing the body "reserves" of the vitamin. Using the bradycardia method of Birch & Harris [1934], the urinary output was found to be dependent on the past intake, being low, for example, in beriberi and in conditioned deficiencies The procedure involved the determination of the "resting level" of excretion and the response to test doses.