Certain cuts, like the ribeye, are super well marbled (meaning they have a high amount of intramuscular fat). These aren't going to be your friend when you're looking for lean protein. Instead ...
This includes certain cuts of red meat, such as loin and round or at least 90% lean ground meat. Other sources of lean proteins include skinless poultry, fish, nuts, beans and legumes, tofu, eggs, and ...