Pharmaceutical or food supplement preparation including alpha-lactalbumin and at least one short-chain fatty acid (SCFA) or a precursor or derivative thereof for use in the treatment of disorders of the central nervous system； the SCFA or its precursor or derivative may be contained in at least one first dosage unit together with a carrier acceptable from the pharmaceutical or food standpoint and the alpha-lactalbumin in at least one second dosage unit together with a carrier acceptable from the pharmaceutical or food standpoint, and said dosage units may be distinct units intended for simultaneous or separate administration or the preparation may consist of a pharmaceutical or food supplement composition comprising the at least one short-chain fatty acid or a precursor or derivative thereof and alpha-lactalbumin together with a carrier acceptable from the pharmaceutical or food standpoint.
