So if someone is low in B12 and they consume alcohol, they not only don't have enough B12 to help 'clear away' the alcohol toxins but they also risk increasing homocysteine levels which I believe is that feeling of heat/hangover that can persist when there isn't enough B12 to reset the body
Fortified cereals and breads often do not provide enough b12 for a healthy body, and as such, regular injections can be necessary
ANTI-INFLAMMATORY PROPERTIES This peptide has anti-inflammatory properties that can help reduce inflammation in the skin and other tissues
More laminin and collagen are necessary for the natural regrowth of stronger, thicker, and longer hair
National Institutes of Health (US), Office of Dietary Supplements
In addition, B-12 shots reduce the risk of some serious complications associated with vitamin B-12 deficiency including: Heart disease Neurocognitive disorders Coordination problems (ataxia) Peripheral nephropathy Vision loss Infertility (although this usually resolves with B-12 treatment) Neural tube defects in the babies of women with B-12 deficiency