Yes, B12 injections are generally considered very safe, even without a diagnosed deficiency
Intrinsic factor is needed to absorb vitamin B12 in the small intestine
Effects of Azgp1(-/-)on mammary gland, adipose tissue and liver gene expression and milk lipid composition in lactating mice
If labs suggest higher oxidative stress despite NAC, a trial of glutathione is reasonable
This guide covers what to pay per milligram, why 50mg vials are the default, what a real COA should show (especially for the copper chelation), and the three vendors worth your order
Loane M, Dolk H, Kelly A, Teljeur C, Greenlees R, Densem J (2011) Paper 4: EUROCAT statistical monitoring: Identification and investigation of ten year trends of congenital anomalies in Europe