The last point is a controversial issue. For years doctors have said sperm are dewdrops. L-arginine is so effective simply because it will help with the release of nitric oxide. Reduced ranges of L-Arginine can lead as a result to decreased libido. 3. Eat vegetables. This is a very good way to increase libido and improve sex drive. Eat kale, turnips, and collards. They have health-enhancing nutrients to help get rid of low libido.