I supplement with calcium (no d3) most days, then calcium with d3 once every other week, along with herptivite every other week (same rotation as calcium with d3). I grow and sell my own feeders, so my two chameleons get a lot of silkworms and hornworms. Check out my website at www.morifeeders.com and the market section of chameleon forums for my post. It contains a couple coupon codes you can use on my website!