During pregnancy, it has been found that vitamin A is essential for normal morphological development for the fetus while vitamin D appears to act as a protective shield against gestational diabetes and preeclampsia
Moreover, the entire plasma -tocopherol pool is replaced daily because of the continued re-secretion from the liver of VLDL containing -tocopherol (15)
A retest now of serum B12, once on weekly injections, will probably be unhelpful as it will be high either way
Cell Death Differ (2020) 27(3):100822
;161(12) Zhu T, Wu XL, Zhang W, Xiao M (2015) Glucagon like Peptide-1 (GLP-1) modulates OVA-Induced airway inflammation and mucus secretion involving a protein kinase A (PKA)-Dependent nuclear Factor-kappaB (NF-kappaB) signaling pathway in mice
Yes, some injections combine B12 and folic acid