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b12 injections better than tablets The Advantages of Versus Oral Supplements: Shawn Veiseh, M.D.: Family Medicine B12 Injections: Are they more
Description
However, clinical trials in humans have demonstrated mixed results

Kannt A, Pfenninger A, Teichert L, et al

Vitamin B12 is essential to the formation of FOLIC ACID

With injections, you will see benefits faster than with vitamins
