Immune support through antibody synthesis
9,10 Reducing the risk of anemia: Vitamin B12 is necessary for producing red blood cells, and a deficiency of vitamin B12 can lead to anemia
For instance, your provider might have you come in for shots a few times a week to get you started
B12 plays an important role in neurotransmitter production, which influences mood regulation and stress resilience
What the Authoritative Sources Say About B12 Deficiency and Supplementation The National Institutes of Health Office of Dietary Supplements publishes the most thorough citation-backed overview of vitamin B12 its role in red blood cell formation and neurological function, the populations most at risk for deficiency (older adults, people on long-term metformin or proton pump inhibitors, vegetarians and vegans, people who have had gastric bypass surgery), and the recommended daily intake at each life stage
Schijns W, Homan J, van der Meer L et al (2018) efficacy of oral compared with intramuscular vitamin B-12 supplementation after Roux-en-Y gastric bypass: a randomized controlled trial