Vitamin B12 is quite possibly the most essential nutrient for the body, but most people get all mixed up about how to take it, when to take until its deficiency symptoms start to show. Tingling or numbness is one of the first symptoms that can show up and the last one to go. While it may appear to be nothing, just a minor inconvenience, the symptom can actually be the body's way of warning about something more dreadful. Let us take a look at why this symptom occurs.. Vitamin B12 plays a key role in many critical processes. It maintains healthy nerve cells, participates in the formation of red blood cells, aids in the synthesis of DNA, and ensures brain and mental functioning. Since, this vitamin has a direct connection with the nervous system, its deficiency can seriously hamper the

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