Just that they are "fatty", even though they are a protein source.
I don't think 2 a day are too many.
I give mine 5-10(small/med.) meallies every third day. They love them so much...2 each would never do...lol!
I hand feed them in the morning before they go to sleep for the day so it doesn't ruin their appetite for their supper.
My gang is currently on a Gliderkids staple diet...if someone has more info on the HPW diet and mealies maybe they will post..
Which HPW diet are you feeding?