I would wager that eggs and liver are self limiting in the vast majority of those eating primal. You may start off eating a pound of liver a day or 48 eggs a week, but thats usually just because you are so nutrient deplete that these nutrient dense foods really appeal to you (once you get over your culture induced addictions to processed garbage and sugar).
Once your past the honeymoon and your nutrient replete you will still crave these things, but probably on a less frequent or a cyclical basis. I had an eight egg omelet with goat cheese today, but thats the first time I've had eggs this week. 3 or more years ago when I first started I had at least 6 eggs a day everyday for at least a few months.