Eating 60g of walnuts, hazelnuts and almonds each day could increase sexual desire and give men better orgasms. Spanish researchers claim men reported having a better sex life with the addition of two large handfuls of nuts a day. Scientists believe the nutrients in the nuts help transmit signals to the penis which boost sensitivity and performance. Antioxidants – abundant in nuts – also benefit the cardiovascular system, and healthy blood circulation is linked to an increased libido. Other trials, including one by experts at the University of California, Los Angeles, have found eating nuts can be a beneficial aid to sperm quality. It revealed sperm shape, movement and vitality improved in men who added walnuts to their diet over 12 weeks. The fatty acids found in these nuts are thought to have helped sperm development, but it is not clear if this would improve male fertility.