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[DOI] [PMC free article] [PubMed] [Google Scholar] 236.Pshezhetsky AV, Richard C, Michaud L, Igdoura S, Wang S, Elsliger MA, Qu J, Leclerc D, Gravel R, Dallaire L, and Potier M

SunVit-D3s Vitamin D and B12 Supplements SunVit-D3 offers high-quality, bioavailable Vitamin D and B12 supplements that are ideal for those seeking to maximise the benefits of taking these vitamins together

[DOI] [PubMed] [Google Scholar] 376

A B12 deficiency injection delivers vitamin B12 directly into the muscle so that the body can absorb it efficiently

What remains unknown Despite encouraging data, genuine unknowns exist: Effects beyond 6-9 months of continuous use have not been formally studied in animals or humans