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In deficiency, the body makes abnormally large, inefficient cells (megaloblastic anemia)
Many notice improved focus and mental sharpness within the first week of treatment
And while eating B12-rich foods and take oral supplements can boost your levels, vitamin B12 injections are an increasingly popular way to supplement
Better Sleep Quality B12 plays a vital role in regulating melatonin, the hormone that controls your sleep-wake cycle
Your GP may check for these deficiencies and treat them concurrently
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