ellen said:Spinach has about 0.03g of calcium per cup and 0.9g of protein. I think female tortoises seek out protein when they're trying to lay eggs (I forget where I read that, though. It was a desert tortoise article) for the young ones' yolk sacs, but otherwise a balance high calcium/low phosphorus diet is important. Excess protein can cause pyramiding.
....Please don't quote me on any of that my stats are probably wrong I'm no expert. I never give my little butts spinach.