can b12 injections increase ferritin levels Are Vitamin Shots Right for You? Vitamin B12 Deficiency: Causes, Symptoms,

For the majority of people, I recommend once weekly for 4 weeks

Methylation happens when nutrients such as Folic Acid, Vitamin B6 and Vitamin B12 donate a methyl group (a molecule combo of one carbon and three hydrogen), and transfer it to a protein, enzyme, hormone or right onto DNA

(PubMed) Quinn M, Halsey J, Sherliker P, et al

(PubMed) Neugebauer J, Zanre Y, Wacker J

Other common symptoms of B12 deficiency include: Lethargy or a total lack of energy Extreme fatigue Palpitations Pale skin Feeling faint Breathlessness Weight loss and loss of appetite Your doctor may prescribe B12 injections in extreme cases that take effect right away