There is provided a composition for improving memory, learning ability, andcognitive ability. It has been confirmed that a peptide having a C-terminalregionended to GAG had an effect of improving the memory. In order for the peptideto havethe effect, it has been confirmed that the peptide should be a peptide ofwhich the lengthconsists of at least 4 amino acids. Further, it has been confirmed that apeptide ofwhich the length of the peptide having the C-terminal region ended to GAGconsists ofto 9 amino acids has the same effect. As a result, the peptide of the presentinventioncan be used as the composition for improving memory, learning ability, andcognitiveability.
