I don't have experience with chams, but I do currently have a crested gecko who appears to have MBD, despite plenty of calcium (in fact, her calcium sacks in her mouth are huge & full of calcium). But she suddenly became unable to metabolize the calcium she was getting, for some reason. The fix has been to use injectable Calcitonin to help her body use the calcium she's getting. I read about this problem in a tortoise, which is what made me wonder about it in my crestie.

A herp vet would be your next best stop. You can find one at: http://www.arav.org/USMembers.htm
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Robins Critters

1.0 Corn snake Jack Skellington

1.1 Hog Island Boas Harley & Isaboa

0.1 Albino Sonoran Gopher Snake Jasmine

0.1 Western Hognose Addy the Adder

1.0 Tricolor Hognose Yoshi

1.3 Leopard Geckos Yoda, Geo, Tang, Ginger

1.3 Crested Geckos Fox Mulder, Zoe, Peek & Boo

1.0 Blue Tongue Skink Indigo

1.1 Eastern Box Turtles Squirtle II & Yurtle II

0.1 Pacman Frog Buffy the Cricket Slayer

0.0.1 Sulawesi Red Toad Mr. Toad

0.2 Tiger Salamanders Tiger & Sally

1.1.1 Firebelly Newts Wayne Newton, Olivia Newton John & Thandie Newton

1.1 Cats Gus & Mena

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