ok, i'm drinking multivitamin (centru and megaman) taking l-argini (libido is better) but i have problem getting it hard like a rock, now it doesn't feel has hard enough, can anyone guide on what to eat and what pills to take. i'm already started the gym (bally) about a month ago just in case u where about to advice me that. thanx. i needed to be hard like a rock againnnn pleaseee helpp