Doctor insights on:
Intrinsic Factor Lack Of
Is a lack of intrinsic factor the only cause of a B12 deficiency assuming one eats plenty of meats and dairy?
How can intrinsic factor be rebuilt?
Gastric receptor B12: It is a glycoprotein produced by the parietal cells of the stomach. There are many cell types in the stomach, but the parietal cell makes this factor. It is necessary for the absorption of vitamin b12, which occurs in the small intestines. If you don't absorb b12, you can develop macrocytic anemia. ...Read more
Intrinsic Factor: The main issue with intrinsic factor is that it helps with absorption of B12 (a vitamin) and a low B12 level will eventually effect your red blood cells. The optimal way to prevent this in those with intrinsic factor depletion is to supplement their B12 intake with injections that bypass the GI tract. If this is a condition you are suffering from, you would benefit from seeing a GI specialist soon. ...Read more
Leads to B12 defic: Pernicious anemia is a chronic illness caused by impaired absorption of vitamin b-12 because of a lack of intrinsic factor (if) in gastric secretions. It occurs as a relatively common adult form of anemia that is associated with gastric atrophy and a loss of if production and as a rare congenital autosomal recessive form in which if production is lacking without gastric atrophy. ...Read more
What causes b12 levels drop rapidly in may it was 100 after injections in June 600 again today its 140 how sudden drop m waiting for reports of intrinsic factor?
Dropping B12: It would be most unusual for the level to drop from 600 to 140 in 2 months. I would suspect that one of those levels was inaccurate and would urge you to have your level rechecked to see if there was a lab error. Perhaps a hematologist would have more experience with markedly fluctuating B12 levels. ...Read moreSee 2 more doctor answers
Does taking b12 a week before an intrinsic factor blood test cause a false reading? Would it affect a b12 test too?
Depends on the test: The test for intrinsic factor is usually antibody to intrinsic factor and that would not be affected. If the B12 test is measuring the blood level of the vitamin, then that would be affected and yield a higher reading than the baseline, without the B 12 supplement. ...Read moreSee 1 more doctor answer
Is is unusual for an otherwise healthy 25yo to have resting tachy if only known risk factor is lack of exercise?
I presume that you mean: Tachycardia, meaning a fast heart beat. You may be surprised to know that this is extremely common and is actually an effect of abnormal activity in the autonomic nervous system. By far and away the commonest cause of this is poor diet, particularly all the sweet stuff ...Read more
- Talk to a doctor live online for free
- Intrinsic factor antibody test
- Intrinsic factor blocking antibody
- Intrinsic factor symptoms
- Ask a doctor a question free online
- Intrinsic factor antibody positive
- Intrinsic factor stomach
- Intrinsic factor antibody negative
- Folate b12 intrinsic factor
- Talk to a gastroenterologist online