Disclosed here are compositions comprising a curcuminoid-peptide complex. Also disclosed are methods of preparing a curcuminoid-peptide complex, comprising obtaining a curcuminoid； obtaining a peptide； and mixing the curcuminoid and the peptide in a solvent. Also disclosed are methods of treating a subject, the method comprising identifying a subject in need of treatment of a curcumin-related disorder, and administering to the subject a therapeutic composition comprising a curcuminoid-peptide complex as described. Also disclosed are therapeutic compositions comprising a curcuminoid-peptide complex as described and a pharmaceutically acceptable excipient, diluent, or carrier.
