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While some NHS areas may offer self-administration after appropriate training, this depends on local policy and is not routinely available everywhere

For individuals with diagnosed deficiencies or absorption issues, delivering these nutrients via injection can ensure maximum uptake, bypassing potential digestive problems

Additionally, maintaining appropriate B12 levels helps promote cognitive health, potentially improving memory, concentration, and mood, and can even support emotional well-being by contributing to serotonin production in your brain

[7] Intramuscular injections , prescribed for severe deficiency or malabsorption conditions, are administered by healthcare professionals according to specific treatment schedules outlined in the BNF