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Article
March 26, 1927

LONDON

JAMA. 1927;88(13):1014-1015. doi:10.1001/jama.1927.02680390042018

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Abstract

The Danger of Irradiating Milk  In a letter to the Times, Dr. J. C. Drummond, professor of biochemistry at the University of London, sounds a word of warning in regard to the irradiation of milk by ultraviolet rays, to which it recently devoted a leading article. He admits that the nutritive value of certain foodstuffs, including milk, from the standpoint of their value in the prevention of treatment of rickets, can be considerably increased by exposure to the radiations of ultraviolet lamps by a change either in the cholesterol or in some closely related body. But it is insufficiently recognized by many who are interested in the practical application of these facts that the short wave-length radiations of the ultraviolet part of the spectrum are extremely powerful agents. Milk which has been exposed to the radiations of a mercury vapor lamp for as short a time as five minutes not

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