A deficiency of vitamin B12 is fairly difficult to diagnose and there are quite a few variables that can lead to the deficiency or just not quite having enough of it regularly, so injections of vitamin B12 can benefit quite a few people who suffer from symptoms including brain fog, fatigue, lethargy, feelings of depression, tingling in their hands or feet, dizziness, and memory loss
Adding or removing other supplements like folic acid
For gastric banding patients, annual blood tests are generally recommended as a minimum once stable, covering: Serum vitamin B12 Full blood count (to detect macrocytic or megaloblastic anaemia) Serum ferritin and iron studies Vitamin D, calcium, and parathyroid hormone (PTH) Folate Thyroid function and other metabolic markers as clinically indicated The specific tests and frequency recommended may vary according to the procedure performed, individual clinical circumstances, and local protocols
When we use oral B12, we look at the patients health and why they might not absorb B12 well