Food researchers in Italy are developing peptide nucleic acids (PNA) to detect DNA in food products. They are using these acids to detect DNA in food in an effort to authenticate these products. Detection of DNA in food products can also help researchers in using genetic sequences to authenticate these products. This strategy will help in verifying products with protected labels, such as Parma ham or Champagne. Researchers are focusing more on the use of PNAs to detect DNA in food products and authenticate them. The PNAs are also helping researchers in detecting a large number of genetic modified organisms (GMO) genes in maize and soybeans, along with the joint presence of allergenic peanut and hazelnut DNA in cereal snacks. The Italian food industry is using PNAs to detect DNA and authenticate food products, including olive and tomato varietals.