In complete, 24 real white truffles harvested in Italy had been analyzed, attaining a δ13C values between -42.6‰ and -33.9‰, with a maximum commonplace deviation decrease than 0.7‰. Two industrial intact truffles and 14 commercial samples of pasta, sauce, olive oil, cream, honey, and recent cheese flavored with truffle aroma had been analyzed, and the outcomes from δ13C measurement have been evaluated as compared with those of real "white truffle" vary and industrial synthetic bis(methylthio)me...