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Remember, serious side effects are very rare
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Noticeable results often happen within 8 to 12 weeks when combined with changes in diet and being more active
Vitamin B12 is a water soluble vitamin necessary for the bone marrow to produce red blood cells
Also, those who have anemia or are vegetarian or vegan will want to consider a B12 regimen, as vegetable-based diets generally dont contain the amount of B12 that you need to thrive
For severe deficiencies, daily or weekly infusions might be needed at first
Your absorption and metabolism
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