Supplements that cause low libido/ED?

Inspired by another members thread, I want to go in the opposite direction. Which supplements give you a low libido and/or ED? I don't want that of course, lol, but I noticed that when I was on Jack3d and 5-HTP, I had a very low libido and morning wood was almost non existant, and if it was there, it wasn't hard like it normally was in the past. I've been off of both of them for a couple months now and everything is normal. I mention these two as the rest of my supplements (fish oil, multi, creatine, vitamin D, ECY stack and coq10) don't seem to have adverse effects. I love Jack3d for the boost it gives during workouts, can anyone recommend something similar that wouldn't affect the libido?