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olestra

noun

oles·​tra ō-ˈle-strə How to pronounce olestra (audio)
: a noncaloric fat substitute consisting of a series of compounds that are sucrose esters of six to eight fatty acids resistant to absorption by the digestive system because of their large size

Example Sentences

Recent Examples on the Web Other exhibits include potato chips made with the fat substitute olestra, which has the benefit of helping weight loss but unfortunate side-effect of diarrhea. Alexander Smith, NBC News, 14 June 2017

Word History

Etymology

probably by shortening & alteration from (sucrose) polyester

First Known Use

1987, in the meaning defined above

Time Traveler
The first known use of olestra was in 1987

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