I have tried celery seeds in the past couple of weeks, and I must say that I am totally amazed by the results. I just bought celery seeds from the grocery store, and took one-third of a teaspoonful three to four times a day down with water. In about a day or two, I started having semi hard-ons all day, and my sex drive has increased at least 2 to 3 times. The semen volume increased about 3 times. I also have very hard morning wood that I have not had for years. Celery seeds are very cheap and it is the most under-rated supplement!