Understanding the complex absorption process of vitamin B12 helps explain why some individuals develop deficiency despite adequate dietary intake, and why different supplementation strategies may be necessary for different people
This is why many people notice a difference within days rather than weeks
Our bodies convert it into active forms, though it is not naturally occurring
Updated C.M, A.K & J.B March 26 Who to refer: Patients with unexplained iron deficiency anaemia should be referred to GI as outlined in the Gastroenterology IDA RefHelp page As Menstruation is the most common cause of IDA in menstruating people under 50 years of age, then this group of patients can still be referred under the GI IDA Referral pathway, but they will be triaged to stool qFIT testing only and if double qFIT testing is negative they will not proceed to other GI investigations If under a parent specialty for bleeding symptoms, or with a clear organ system cause for iron deficiency, referral should be directed to the appropriate specialty
Suboptimal B12 causes brain fog, difficulty concentrating, mood changes, tingling extremities, and progressive neurological decline
