The present invention provides an oral composition comprising a polymer, preferably a copolymer of methyl vinyl ether and maleic anhydride, attached to a sweetening agent via a cleavable linker, comprising a covalent bond, preferably an ester bond or an amide bond wherein the polymer is capable of attaching to a surface in an oral cavity, and the cleavable linker is cleavable in the oral cavity to release the sweetening agent.