adverse reaction to b12 injection Vitamin B12: Overdose and Side Effects Are B12 Shots Safe? Royal

The reality is that they are not distinct at all

Some research suggests that reduced MTHFR function may contribute to folate-related macrocytic anemia by reducing availability of active folate

Suppresses lipogenesis by reducing acetyl-CoA carboxylase activity in cells

In short: B12 shots are used because they deliver vitamin B12 faster, more reliably, and more efficiently than oral supplements, especially if you have an absorption issue

The average infant blood vitamin B 12 level at 8 weeks postpartum was 506 pmol/L (686 ng/L).[28] Three hundred fifty-three infants born to women in Bangladesh taking a daily multinutrient supplement containing 2.6 mcg vitamin B 12 from the first trimester of pregnancy through 3 months postpartum had a median blood vitamin B 12 level at 6 months postpartum of 221 pmol/L (299 ng/L)

If its too warm, the protein in the medication can break down