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PMID: 19668473

Anemia Prevention: Vitamin B12 is essential for the production of red blood cells

People Experiencing Unexplained Fatigue or Brain Fog Even without a formal diagnosis of deficiency, many people feel chronically tired, foggy, or unmotivatedsymptoms that can stem from suboptimal B12 levels

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Different supplementation regimes to treat perioperative vitamin B12 deficiencies in bariatric surgery: A systematic review