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If you had b12 deficiency for a long time it may take months before you see a regression of your symptoms
Improves Brain Function Vitamin B12 is required by the body to make red blood cells, which carry oxygen to the brain and other organs
Cost & Convenience Oral supplements are cheaper, widely available over-the-counter, and more convenient
PubMed Goldstein, A.L., Hannappel, E., Sosne, G., Kleinman, H.K
US$ 20.33
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