sandrachameleon
Chameleon Enthusiast
...Bottom line is, a Cham cannot overdose on Calcium. Calcium is water soluble, so if the cham gets too much via it's diet it will simply pass it out in it's poop/urates.
well, technically, I think there is such a thing as too much calcium from supplements - it is possible to cause harm from excessive intake of calcium, as it can potentially interfere with the absorption of other nutrients like iron (from non-meat sources), zinc and magnesium. especially in older animals who may have compromised organs /reduced ability to excrete excess calcium. can also cause constipation, especially if water intake is insufficient.
Tolerable intake level is likely pretty darn high though, so in effect you're right its not something to worry much about.
of greater concern would be any fat-soluble vitamins that may be in a supplement along with the calcium.