Pistachios?.....Anyone??

I read a few articles about studies on erections and eating pistachios a couple of months ago; then decided to try eating them regularly- 8 oz in the shells a week and I have been getting the hardest and longest (up to an hour) erections in years. I have seen the same companion provider four times over the past six weeks and she has commented several times about how hard my erections have been and how long I stay up (I haven't even told her that I started to consume pistachios). I have used ED meds at $33 a dose for many years to great and lesser effectiveness; but pistachios have seemed to have made a big (no pun intended...well, maybe a bit) difference. Look up the medical studies on Google. Any comments? I have been using ED meds with them during this time also.