Provided is a lactic acid bacteria growth promoter which has a growth promotion effect on lactic acid bacteria. The lactic acid bacteria growth promoter includes at least one peptide selected from the group consisting of: a first peptide having a total number of residues of not more than 9 and comprising a hydrophobic amino acid residue at the C-terminus; and a second peptide having a total number of residues of not more than 9. The ratio of the total number of hydrophobic amino acid residues and proline residues to the total number of residues is not less than 2/3.

Provided is a lactic acid bacteria growth promoter which has a growth promotion effect on lactic acid bacteria. The lactic acid bacteria growth promoter includes at least one peptide selected from the group consisting of: a first peptide having a total number of residues of not more than 9 and comprising a hydrophobic amino acid residue at the C-terminus; and a second peptide having a total number of residues of not more than 9. The ratio of the total number of hydrophobic amino acid residues and proline residues to the total number of residues is not less than 2/3.