35 calories per serv. Italian. No artificial colors or dyes. The Castelvetrano olive, also knows as Nocellara del Belice, is grown exclusively in and around the town of Castelvetrano, Sicily. These natural green olives are famous for their irresistible buttery-sweet flavor and crisp, meaty texture. www.delallo.com. Follow us (at)delallofoods. Product of Italy.