Yes, they can be an every day food. Two of my girls will not eat anything but supers and I don't worry about it...they are a bit fattier than crickets or mealworms but are really a fine feeder. Obviously variety is best, mealworms, supers, silk worms, phoenix worms, crickets...the more the merrier. I try to mix things up for my guys, but as I said, two of them will have none of that noise!
Are you thinking of wax worms? They are best used for snacks only, if at all.