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vitamin b12 injections cause black stool Why Is My Poop Black? What's Normal and When to Worry Your stool colour can reveal
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However, these differences did not reach statistical significance owing to the limited number of studies
While B12 is naturally found in foods like meat, eggs, and dairy, some individuals have difficulty absorbing enough through diet alone
No amount of information can replace the experience and expertise of a doctor, therefore his/her advice always holds priority and should be followed appropriately

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doi: 10.1016/j.nutres.2015.10.003 Stabler, S