Nothing. The diet needs changed. No PED is going to make up for that kind of diet. Where's your protein?
That's not IIFYM. there's nothing that fits in that diet macro wise
There isn't really any of those people in my gym. Most people are average Joe's. I stand out there. but never really did that stuff anyways even in my early years. I put my research in early and learned a lot. I keep to myself at the gym and that's how I like it
At the end of the day no matter what you take you have to learn to eat the right amount of the right things. Take it from somebody that was a "hard gainer" in my younger years. You have to forcefeed a while until ypur body gets used to it. No such thing as a hard gainer. It's really as simple as...