Calcium : how much is too much?

[igslave]

On Jan 11th, blood work from the vet showed that Lizzie was forming eggs. She was put on Neo-Calglucon liquid supplement of 1.5 ccs per day. Her diet is mainly collard, mustard & turnip greens with a bit of veggie (& occasional fruit treat).
So, it's been over a month since she started the supplement. Still eats like a little green horse, no sign of eggs forming. I don't want her to get too much calcium; if she has reabsorbed the eggs, am I giving her a calcium OD?

[IguanaKing]

You might very possibly be giving her a Calcium overdose. I don't want to second-guess your vet, but I have found that NeoCalGlucon seems to be a favorite, almost automatic prescription because of an assumption that everybody's iguana is going to be Calcium deficient. So, maybe look for a second opinion from another qualified vet. I've had vets prescribe that stuff, practically sight unseen...and I have had the vets I trust mention it at the beginning of a visit, but following bloodwork said "Well, on second thought, it looks like she won't need the supplements." Is Lizzie showing any other gravid behavior? Digging, face-rubbing...that kind of thing?

[prism_wolf]

I very much agree here. The only way to tell if you're giving too much is to have another blood panel done to see where the levels are. Absorbing her eggs is most certainly placing it back into her system.

[igslave]

She likes to sleep under a pile of towels (under her CHE) at night, and she digs to get under those, but only at dusk, no other time. She does seem cranky at bedtime. She maybe looks a little rounder; maybe I just spend too much time examining her to see any difference!
The first vet I had her to last spring told me she had MBD (she had lots of breaks in various stages of healing and was very underweight), and put her on a powdered calcium supplement. For some reason I can't explain, I didn't feel completely comfortable with that vet. She recommended I feed her eggs, but I wasn't given great survival odds for her, so she may have just thought it would be good to get any meat on her. (She was listed on the greenig website list).
For that last set of tests, I took her to a different vet who has owned iguanas and worked with them in a zoo and is very adept at handling igs. I get a good feeling from her and would like to stick with her if possible. I did make her aware of Lizzie's hard luck past, and she told me the powdered calcium, which I hadn't given her after the first month or so, was too strong; she didn't want me to give her too much. Should I just get her x-rayed to see where we stand with regards to eggs? Is the blood test more definitive? I've reviewed the anapsid egg schedule, but I'm really just not certain where we're at, and I just want to do what's best.