Phytosterols

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sterols Alcohols derived from the steroids; including cholesterol, ergosterol in yeast (the precursor for synthetic vitamin D2), sitosterol and stigmasterol in plants, and coprosterol in faeces.

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phytosterol A steroid that occurs in plants. Although they are widespread, the functions of phytosterols are not clearly understood.

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phytosterol General name given to sterols occurring in plants, the chief of which is sitosterol.