Lecithin wani sinadari ne da ake samu a yawancin tsiro da naman dabbobi. Wani abu ne mai launin rawaya-launin ruwan kasa wanda nau'in phospholipid ne, kuma ya kunshi choline, inositol, phosphoric acid, da fatty acid iri-iri. Ana amfani da Lecithin a yawancin kayan abinci a matsayin emulsifier, wanda ke taimakawa wajen kiyaye mai da ruwa daga rabuwa. Hakanan ana amfani dashi a cikin masana'antar harhada magunguna azaman wakili mai sutura da kuma samar da capsules da allunan. Ana kuma tunanin Lecithin yana da fa'idodin kiwon lafiya, kamar inganta aikin kwakwalwa, taimakawa wajen narkewa, da rage matakan cholesterol.