b12 injections and kidney disease Homocysteine, Vitamin Folate Level: Possible Risk Factors in the Progression of Chronic Heart and Disorders Vitamin B12 | Linus Pauling

The detrimental effects of B12 deficiencysuch as hyperhomocysteinemia and impaired methylationare well-established and can negatively impact oocyte quality and embryo viability [19, 20], which is consistent with the lower pregnancy rates we observed at low B12 levels

When used properly, it allows medications to be delivered safely to patients

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They might start with lower doses to avoid side effects

For example, switching where the shot is given can help avoid irritation