b12 injection vs pills is tablets as good as injections Are Vitamin Shots Right for You? B12 Injections vs. Oral Supplements: – B12 Injection vs. Oral Supplements:

doi:10.1093/ajcn/87.2.362

When youre stressed, your body produces more cortisol , a hormone that can interfere with the hormones regulating your menstrual cycle (7-9)

So for the best absorption rate and use by your body, Methylcobalamin is the Vitamin B12 you want

2 Table 2 Clinical Manifestations of Vitamin B12 Deficiency Maternal vitamin B 12 deficiency during pregnancy or while breastfeeding may lead to neural tube defects, developmental delay, failure to thrive, hypotonia, ataxia, and anemia

It is built around sustained efficacy

If you are on a low dose and a single vial would technically last longer than 28 days, you need to discard the unused portion and start a fresh vial