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It is crucial to have a proper diagnosis before beginning B12 supplementation to avoid overuse or unnecessary treatment

A few authors have proposed that folate may actually worsen the neurologic dysfunction

For those who fall outside these categories and have normal serum B12 levels, an injection is a discretionary wellness choice not a medical treatment

Although it's uncommon, vitamin B12 or folate deficiency (with or without anaemia) can lead to complications, mainly if you have been deficient in vitamin B12 or folate for some time

Anaphylactic shock and death have been reported after parenteral vitamin B12 administration