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vitamin b12 injections cause black stool Side Effects What could cause abnormal poop

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vitamin b12 injections cause black stool Side Effects What could cause abnormal poop

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vitamin b12 injections cause black stool Side Effects What could cause abnormal poop

Kidneys: The kidneys contain significant amounts of vitamin B12

vitamin b12 injections cause black stool Side Effects What could cause abnormal poop

Vegetarians and vegans need to be particularly vigilant since B12 only occurs naturally in animal products

vitamin b12 injections cause black stool Side Effects What could cause abnormal poop

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