D-fucose monosaccharide ne, musamman sukari mai-carbon shida, wanda ke cikin rukunin masu saukin sukari da ake kira hexoses.Yana da isomer na glucose, wanda ya bambanta a cikin tsarin ƙungiyar hydroxyl ɗaya.
D-fucose ana samunsa ta halitta a cikin halittu daban-daban, ciki har da ƙwayoyin cuta, fungi, tsirrai, da dabbobi.Yana taka muhimmiyar rawa a cikin matakai na rayuwa da yawa, kamar siginar tantanin halitta, mannewar tantanin halitta, da haɗin glycoprotein.Yana da wani ɓangare na glycolipids, glycoproteins, da proteoglycans, waɗanda ke da hannu a cikin sadarwar salula da kuma ganewa.
A cikin mutane, D-fucose kuma yana da hannu a cikin biosynthesis na mahimman tsarin glycan, irin su Lewis antigens da antigens na rukuni na jini, waɗanda ke da tasiri a cikin karfin jini da kamuwa da cuta.
Ana iya samun D-fucose daga tushe daban-daban, gami da ciyawa, tsire-tsire, da fermentation na ƙwayoyin cuta.Ana amfani da shi a cikin bincike da aikace-aikacen ilimin halitta, da kuma samar da wasu magunguna da magungunan warkewa.