Examples of these health conditions include those with a lack of stomach acid, those who have undergone bariatric surgery, anemia caused by the inability to absorb the vitamin, other autoimmune digestive diseases, as well as several medications
Other benefits include improved carbohydrate metabolism for diabetics, improved libido, and has proven benefit in the treatment of cardiovascular disease.
If you dont have one, you can self-order the ferritin test , CBC , and iron/TIBC test through Ulta Labs
This typically involves: Intrinsic factor antibodies (highly specific for pernicious anaemia, though sensitivity is only 50%) [12] [28] Gastric parietal cell antibodies (more sensitive but less specific) Coeliac serology if malabsorption is suspected Consideration of upper gastrointestinal endoscopy in selected cases, particularly with autoimmune gastritis/pernicious anaemia NICE guidance emphasises that treatment should not be delayed whilst awaiting antibody results if clinical features strongly suggest deficiency, as irreversible neurological damage can occur
