Tribulus Terrestris Extract which can improve sex drive and sexual performance. In order to increase erections you need to eat phosphorus-full products: sea food, chicken eggs, dairy, vitamin E (which you'll see in vegetable oils, dill, etc) The investigations clearly show that Male impotence could be caused by many mental factors (emotional tension or unhappiness being on the first place), likewise through diabetes, cardio conditions, brain as well as back illnesses, and so on. The first basic is you are what you eat!