I eat like 20-25 steaks every week while I am bulking. It does wonders. My family owned a meat market for many years in upstate new york so I know the cuts. THe fat adds the taste and that is what a ribeye is known for (The marbling) but you are still taking in fat. They are great steaks no doubt but $ for pound a sirloin is the best bang for your buck. Trim slim still fairly tender and tasty. Flank steak is shoe leather T-bones, Strips, porterhouses, tenderloins all come from the same loin a porter house has a bigger piece of tenderloin in it the round part is the tender loin. but definately a ribeye aka prime rib when you get it in a roast is tasty and tender because the fat!!