If chicks are going to be fed treats they should not exceed 10% of their total diet. Chicks are like kids - feed them treats and they will turn up their nose at the nutritionally sound feed they should have.
Also if they are going to be eating meal worms, etc. they need a source of grit for digestion.
Also if they are going to be eating meal worms, etc. they need a source of grit for digestion.

I raise chicks, hatch to about 6 - 8wks for a friend that breeds & sells. That was one of last years mixed batch which was suppose to be my last but she'll be getting some BLRW chicks next month so I'll raise them & get to keep what I want.
I said G'Day on your intro post.