why b12 injections are painful Vitamin What happens if you inject

Application in Studies of Glucose Metabolism Disorders and Diabetes Glucose metabolism disorder is a hallmark of diabetes, insulin resistance, and related metabolic diseases

From the Freeze Dried Isolates range, handled with the same preparation steps as this one

[1] Unlike fat-soluble vitamins that accumulate in body tissues, water-soluble vitamins are generally excreted through urine when consumed in excess

UK guidelines recommend monitoring clinical response and full blood count (typically at around 2 months) to ensure treatment adequacy, rather than routinely rechecking B12 levels after replacement has started