Is it true that milk contains calcium carbonate which removes calcium from our bones so we shouldn't drink it?
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$\begingroup$ Your bones are made of calcium carbonate. Milk is a good source of calcium and is considered to be perfectly healthy to drink. $\endgroup$ – bon Sep 27 '15 at 17:35
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4$\begingroup$ I object. Bones are made of calcium phosphate. $\endgroup$ – Ivan Neretin Sep 27 '15 at 17:43
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$\begingroup$ @IvanNeretin You're right! I have always believed that it is calcium carbonate but that seems like a myth. $\endgroup$ – bon Sep 27 '15 at 19:12
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$\begingroup$ You would need HF for that. $\endgroup$ – K_P Sep 27 '15 at 19:17
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First of all, it doesn't contain calcium carbonate. Calcium carbonate is solid material that doesn't solve in water. Marble and limestone are calcium carbonate (https://en.wikipedia.org/wiki/Calcium_carbonate).
Even if it contained, it would be an excellent source of calcium. It is even used as dietary supplement. https://ods.od.nih.gov/factsheets/Calcium-HealthProfessional/
To answer the implied question (can you drink milk?), @Curt Fs's reference is perfect answer.
