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In the absence of coenzyme B12, tetrahydrofolate cannot be regenerated from its inactive storage form, 5-methyl tetrahydrofolate, resulting in functional folate deficiency

Patients must strictly follow the doctor's instructions, not self-adjust the dosage, and should not stop the medication without the doctor's approval 5

This method quickly fills up B12 stores

However, it is so important to talk to your doctor first, especially if you have any underlying medical conditions or take medications

While all Vitamin B12 injections serve the same purpose of delivering the essential nutrient, they can differ in factors such as formulation, dosage, and administration method

It sits in a framework where it is one of several targeted corrections alongside a stable base of universal supplementation