What is vitamin B12 good for?
Vitamin B12 (also known as cobalamin) is essential for keeping your brain and nerves healthy and for making DNA and red blood cells. Without enough vitamin B12 people can develop many symptoms, including weakness, fatigue, light-headedness, and shortness of breath. If low levels of B12 remain for a long time, the condition also can lead to irreversible damage to nerve cells, which can cause numbness and tingling in the hands and feet, difficulty walking and memory loss.
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