It would appear that scientists at the Atatürk Teaching and Research Hospital in Ankara, Turkey have found a tasty alternative to Viagra. According to their study conducted on 17 married male patients, who have suffered from erectile disfunction (ED) for at least 12 months, a diet of 100 g of pistachio nuts daily, which corresponds to 20% of the daily calorie intake, for 3 weeks improved all five domains of International Index of Erectile Function (IIEF) scores.