I would not use waxworms as a constant food source. Honestly, I would use them maybe once a month as a treat....if that. They have very little nutritious value if any and they are basically just fat. I would use silk worms or small hornworms. Plus, if you were to feed your chameleon nothing but waxworms for a while, it would be very difficult to get him to switch back to healthy feeders without forced hunger.