Methanol in Normal Human Breath

Science  16 Aug 1963:
Vol. 141, Issue 3581, pp. 639-640
DOI: 10.1126/science.141.3581.639


Free methanol has been detected and measured, by gas-liquid chromatography, in the breath of several normal, healthy humans. It is suggested that this is a metabolic product rather than the result of diet or intestinal bacterial decomposition although there seems to be no biochemical reason for its presence.