inject b12 in stomach Optimal Injection Sites for Maximum Absorption and Benefits Best Vitamin B12 Injection Sites:
Description
Eat enough dairy foods or B12 fortified foods for this purpose

[DOI] [PubMed] [Google Scholar] 52.Leyden JJ, McGinley KJ, Nordstrom KM, Webster GF, Skin microflora

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I now still have them but less frequently and usually less severe