Symptoms of vitamin B12 deficiency may include any or all of the following: Chronic fatigue (4) or low energy (despite getting enough sleep) Shortness of Breath Macrocytic anemia (5) High MCV (mean corpuscular volume on CBC analysis) Neurological changes that can mimic dementia (6) Depression (7), anxiety, and other mood disorders Difficulty with concentration (8) Brain fog Skin changes like hyperpigmentation (9), vitiligo, or angular stomatitis Hair changes (including hair loss (10)) Perhaps you can relate to one or more of these symptoms noted above
[DOI] [PMC free article] [PubMed] [Google Scholar] Rajan 2002 Rajan S, Wallace JI, Beresford SA, Brodkin KI, Allen RA, Stabler SP
Oral administration and lipid metabolism
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All three improve B12 status
Nasser Nasseri What are the main benefits of B12 shots for total well-being