what are b12 injections given for

what are b12 injections given for Injection Services Methylcobalamin Injection (Vitamin B12) |

Name: what are b12 injections given for Injection Services Methylcobalamin Injection (Vitamin B12) |
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It also helps your immune system, mental health, and more

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A 2021 systematic review of 16 randomized controlled trials and 6,276 participants (Markun and colleagues, Effects of Vitamin B12 Supplementation on Cognitive Function, Depressive Symptoms, and Fatigue, Nutrients, 2021) found that B12 supplementation does not reliably reduce fatigue in people who are not deficient

While the timeline varies for each person, it typically takes a few days or weeks before vitamin B12 levels improve, reducing symptoms such as extreme tiredness or lack of energy