I would recommend trying more fat, and incorporating organs. They are, after all, the most nutritious part of the animal, much more nutritious than muscle (liver has 10x times the amount in many nutrients, or even more than that). And in my opinion they taste good as well (not all of them are the same, obviously). You should also try and get grass-fed/pastured/organic/wild game in the case of organs and fat, as the difference between that and grain-fed is significant. And just so you know, the red liquid in rump steak is actually myoglobin.