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Name: what's the difference between b12 injections and b12 pills do tablets work as well as Advantages of Versus Oral Supplements: Shawn Veiseh, M.D.: Family Medicine Vitamin A Vitamin B12 – Get B12 injection online -
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1 Alcohol reduces vitamin B12 levels While there are a number of studies linking alcoholism to severe B vitamin deficiency, the Journal Nature published a study in 2004 that looked at the impact of moderate alcohol intake on B12 levels in post-menopausal women