
Originally Posted by
Paula
No, it's not bad for you, but it is calcium carbonate, which is the composition of something like 98% of all guinea pig stones. There's no point in avoiding feeding your guinea pigs calcium carbonate if you're going to feed them food that contains limestone, because limestone is simply a cheap source of calcium (carbonate) added to pet foods.
In my experience and after extensive research on the matter, it's a great deal more problematic to be feeding guinea pigs (especially stone-prone guinea pigs) calcium carbonate, whatever the source, than the plant based calcium you'd find in alfalfa hay or vegetables.
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