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I sometimes wonder/crave chewing on soft, white sand. Thinking about it makes me anxious and I think if I actually ate sand, it would gross me the hell out, nevertheless, it's something I think about from time to time. Does anyone else feel this way/ is this normal?
It isn't normal, though urges to lick stones and eat strongly textured things can happen when you have vitamin deficiencies or are not getting enough fiber or protein. You may also be experiencing a desire for better hygiene with your teeth - like cats that want to chew on nail files - so you could try using a better floss and/or brushing 2-3 times a day. Another cause could be itching in your mouth due to mild food allergies, so consider what you have eaten before this desire comes over you and try avoiding that food if it seems to be related.