for lean gains: min animal fats, min carbs (brown rice, veg instead of breads and pasta), and good protein. Opt for natural protein vs shakes and bars. Fresh salmon and tuna, if you can afford, is best. Boil in olive oil for 1.5min on each side. Otherwise lotsa chicken. Limit red meat unless you have access to really clean-cut fillets. For healthy carbs - spinach, sweet potaotes, beans (there are many kinds, all good, so play around and enjoy), asparagus, brocoli, etc. Take a good multivit. Solgar Labs V2000 worked best for me over the years.