Recommended daily intake= 2.4 mcg
There are no vegan foods contain vitamin B12, only foods fortified with vitamin B12
Deficiency symptoms
- megaloblastic anemia
https://www.ncbi.nlm.nih.gov/pubmed/28925645 - Erythematous Oral Macules
https://www.ncbi.nlm.nih.gov/pubmed/31615625 - psychiatric illness
https://www.ncbi.nlm.nih.gov/pubmed/31617966 - severe neurologic sequelae in infants
https://www.ncbi.nlm.nih.gov/pubmed/31604629 - growth retardation, and infertility.
https://www.ncbi.nlm.nih.gov/pubmed/31546940 - Excessive Daytime Sleepiness
https://www.ncbi.nlm.nih.gov/pubmed/31538608
Function:
- important for protein metabolism
https://medlineplus.gov/ency/article/002403.htm - helps in the formation of red blood cells
https://medlineplus.gov/ency/article/002403.htm - maintenance of the central nervous system.
https://medlineplus.gov/ency/article/002403.htm - protects cells from oxidative DNA damage
https://www.sciencedirect.com/science/article/pii/B9780128092521000146 - Inflammation reduction
https://www.sciencedirect.com/science/article/pii/B9780128092521000146 - cofactor for several essential enzymatic reactions, including methionine synthesis
https://www.sciencedirect.com/science/article/pii/B012227055X000171
Overdose: 0.4-1 mg but does not have any side effects
Excess: excreted in the urine
Type: water soluble vitamin
https://ods.od.nih.gov/factsheets/VitaminB12-HealthProfessional/#h8
