I thought I posted that in this thread but apparently, it was in the other thread "What monitor" but I will explain for here as well.
I rescued my Nile from someone who no longer wanted it, and guess that he figured he would simply let it die by not feeding it or cleaning it, etc. I gave him $50 for the monitor and brought it home with me, and was told that it was just about a year old then. I spent well over a grand getting it back to health. The monitor had mouth rot, scale rot, an upper respiratory infection, and missing the tip of its tail due to no humidity when I obtained it.
Maybe that will clear some things up. I do feed just about everyday, and it is mostly f/t baby chicks, rat pups, and then some dubia roaches and super worms. However, I do feed hard boiled eggs and beef liver with the insects.