A process for the preparation of methionine α-hydroxy analogue and derivatives thereof comprising contacting one or more sugars or derivatives thereof with a metallo-silicate composition in the presence of a compound comprising sulphur and a solvent.一種製備甲硫胺酸α-羥基類似物及其衍生物之方法,其包含使一或多種糖或其衍生物與金屬矽酸鹽組成物在包含硫之化合物及溶劑存在下接觸。