Zasićena mast je mast koja se sastoji od triglicerida koji sadrže samo zasićenemasne kiseline. Zasićene masne kiseline nemaju dvostruku vezu između atoma ugljenika u lancima masnih kiselina.[1] Drugim rečima njihovi lanci atoma ugljenika su potpuno zasićeni atomima vodonika. Postoje mnoge vrste prirodnih zasićenih masnih kiselina, koje uglavnom razlikuju po proju atoma ugljenika, od 3 ugljenika (propionska kiselina) do 36 (heksatriakontanoinska kiselina).
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