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Hello, my name isXXXXX am a licensed veterinarian and I will try and help you as best as I can.
Were these just calcium, or did they have vitamin D and other things in them?
I'm not sure. They were from Costco, and I threw away the bag.
I see. If they were just calcium chews, it should not be a problem at all, the GI tract wont absorb them. Even if they had vitamin D, he is large enough that there wouldn't be a problem. You may see upset stomach later if they cause any irritation, however I would not expect anything dangerous or life threatening
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