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Being a vegetarian or vegan : This group consumes less foods that are naturally high in vitamin B12, such as beef and poultry (and sometimes dairy and fish too), which means their intake of vitamin B12 is lower whether their absorption is adequate or not

The key difference lies in their chemical composition and how they are processed in the body

For anyone struggling to keep food or supplements down during illness, IV delivery removes the absorption barrier that makes oral intake unreliable

With locations in London (Wimpole St) and Berkhamsted (Hertfordshire), we are here to help you feel your best.

Some of the B12 deficiency symptoms are: Fatigue: feeling tired while recovering from a bariatric surgery such as gastric bypass surgery is completely normal and even expected, but experiencing fatigue might be a symptom of vitamin B12 deficiency