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mthfr gene mutation and b12 injections MTHFR, Hashimoto's, Nutrients MTHFR mutation: Another unifying etiology
Description
Which of course lead me to wonder, but how does anyone know what the good stuff is

Patients experiencing signs of allergic reactions should discontinue the medication and seek appropriate medical attention

While several studies have identified a correlation between cancer and elevated vitamin B12 levels, the National Institutes of Health (NIH) notes that the evidence remains inconclusive

If you experience suspected adverse effects from vitamin B12 medicines, report them to the MHRA Yellow Card scheme
