Take five meals a day at least. Spread them out evenly. To keep energy going and digestive system going.

Nice balance of protein and carbos in every meal. Red meats are good, but not all the tiume. Chicken breast, fish and eggs are most reccomended. Especially the first and last. Try to eat with pasta or rice rather than bread. Though don't fret over that, if you prefer bread, so be it.

Er...make two of your meals protein drinks. If you want to go down that path. Creatine helps a lot, but don't know how serious you are. And once again, not everyone likes to take that route. It's legal though.

Eat five fruits a day. Try to add them to your meals.

Hmmmm...that's all off the top of my head. I haven't properly done bodybuilding. But done a lot of foundation like training (martial artist type rather than out and out raw strength). And that above diet would work.

Oh, and 3-4 litres of water.

But to tell you the truth, i don't lik eto concentrate too much on diet. Rather train with a balance of different foods. Junk and 'healthy'. Body usually adapts. And the type i was doing, conditions itself to unusual 'diets' and all that.