There is mounting evidence that elevated plasma homocysteine (and therefore decreased serum methionine) contributes to congenital neural tube defects
This treatment capitalizes on the benefits of high-potency Vitamin B12 to boost your energy levels, enhance your mental clarity, and promote overall wellness
But perhaps the best proof of B12s superpowers is what happens when it is not adequately present in the body
[1] [4] Mood changes including low mood, irritability, or anxiety can be associated with declining B12 levels, though these symptoms are non-specific and can have many causes
Good to know about Vitamin B12
Last clinically reviewed: 31 July 2026 Clinical information sources NICE NG239 Vitamin B12 deficiency in over 16s: diagnosis and management NHS Vitamin B12 or folate deficiency anaemia NHS Diagnosis NHS Treatment MHRA Vitamin B12 and cobalt allergy advice This page provides general information about the pharmacy service and does not replace personalised advice from a pharmacist, GP or other healthcare professional