The body cannot synthesise vitamin B12 independently and must obtain it through dietary sources, primarily animal products such as meat, fish, dairy, and eggs
While supplementing with large doses of B12 will reduce MMA levels more than will smaller doses, there are no clear benefits (more info in Appendix A
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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 do you test my vitamin B12 levels to see if I need treatment
They are also contraindicated in individuals with a personal or family history of medullary thyroid carcinoma or multiple endocrine neoplasia type 2, based on preclinical findings in rodent models
All copper peptides share similar potential side effects: temporary redness, irritation with high concentrations, and possible allergic reaction in those with copper sensitivity
