Word: sterol
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Dates: during 1920-1929
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...Liver Oil & Ergosterol. In cod-liver oil, is a substance which contains Vitamin D and which helps both to prevent and cure rickets (bone disease). That substance (provitamin) acts like a solid alcohol (sterol) and is believed to be ergosterol. If ergosterol is exposed to certain wave lengths of ultraviolet light for certain periods the potency of this provitamin is increased so powerfully that, for treating rickets, one ounce of it is as good as six tons of cod-liver oil.-Dr. Alfred Fabian Hess of Manhattan...