Windsor Clive Primary School in Cardiff is one of the schools taking part in the campaign this year and children have enjoyed learning about the importance of a balanced diet.
Mae Ysgol Gynradd Windsor Clive yng Nghaerdydd yn un o'r ysgolion sy'n cymryd rhan yn yr ymgyrch eleni ac mae plant wedi mwynhau dysgu am bwysigrwydd deiet cytbwys.