can you have too much b12 injections How Quickly Does Shot Work? Does It Help to Lose Weight? Vitamin B12 Injections: Hot Shots?

Recent research has also explored its role in skin health and hydration

Some of the roles that are attributed to vitamin B12 include: Forming red blood cells Playing a role in DNA/RNA synthesis Acting as a cofactor for methionine synthase (helping with methylation or the conversion of homocysteine to methionine, which protects cardiovascular health and more) Facilitating metabolic conversion of protein and fats Carrying out neurotransmitter functions and helping with production of hormones Helping convert amino acids and make creatine Producing myelin sheath (the coating of nerves) Helping with synthesis of hemoglobin Playing a role in fetal development during pregnancy How Much Do You Need

PMCID: PMC6566799.

They start with high doses to fill up their vitamin B12 stores

Q8: What are the most commonly reported side effects