In total, 24 real white truffles harvested in Italy have been analyzed, attaining a δ13C values between -42.6‰ and -33.9‰, with a most normal deviation decrease than 0.7‰. Two industrial intact Dried Truffles and Mushrooms and 14 commercial samples of pasta, sauce, olive oil, cream, honey, and contemporary cheese flavored with truffle aroma had been analyzed, and the results from δ13C measurement had been evaluated in comparison with those of real "white truffle" range and industrial artificial...