This is the problem with current "nutritional science."  If you consume an oil like rapeseed, which is rich in erucic acid, you are probably going to cause yourself major harm.  However, if you choose high quality olive oil and don't cook it or eat it in a rancid state, that is fine.  Low qualilty olive oil is pretty bad, though.  Even "red meat" is not specific enough, for various reasons, which is why it makes sense to feed animals the kinds of diets people actually eat, or what is being recommended by the "experts."  I prefer the latter, to show that there is a big problem with their advice.  If the animals get plenty of canola oil with fish oil supplementation, and no "red" or "processed" meat, then if they don't like as long as the coconut fed animals, all other things being equal, you have demonstrated clearly that their advice cannot be correct.  It is a direct, undeniable refutation.