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Doctor insights on: B12 Absorption With Colectomy

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Dr. Randy Baker
995 doctors shared insights

Vitamin B12 (Definition)

Vitamin B12 is a vitamin which is a kind of nutritional agent ...Read more


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My son (22) had a colectomy, his colon was removed and subsequent J Pouch etc. He recently is very fatigue, weightloss etc could this be a b12 defiec?

My son (22) had a colectomy, his colon was removed and subsequent J Pouch etc. He recently is very fatigue, weightloss etc could this be a b12 defiec?

Unlikely: B12 absorption and the intrinsic factor that are involved in the process are all part of the small intestine function. The colon is more of a storage area, water retriever than anything else, so loss doesn't often give significant problems. Fatigue is a good reason for an office evaluation. ...Read more

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Does sublingual B12 absorption work?

Does sublingual B12 absorption work?

B12 deficiency: Intranasal, sublingual, oral, and intramuscular are all effective means of increasing vitamin B12 levels. ...Read more

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If I am taking B12 "sublingually", then, would drinking a small cup of coffee disturb the B12 absorption?

If I am taking B12 "sublingually", then, would drinking a small cup of coffee disturb the B12 absorption?

NO: by the time it dissolves under your tongue- it should be absorbed and not affected by coffee. ...Read more

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How much of B12 supplement can my body absorb per day? Does taking more 5000 mcg in 5 times(in 2hours gap) mean more absorption than 1000mcg one time?

How much of B12 supplement can my body absorb per day? Does taking more 5000 mcg in 5 times(in 2hours gap) mean more absorption than 1000mcg one time?

Sublingual B12: Is best. Get the kind that melts under your tongue and with folate (folic acid) if possible. 500 to 1000 mcg is a common dose. If you swallow the B12 you will get much lest benefit because it has to go through your GI system. Peace and good health. I see you struggle w/fatigue. You may find the MicroNutrient Test from Spectracell lab in Tx helpful. ...Read more

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Does fat content increase the absorption of vitamin D2, or this only apply to D3? Does vitamin D2 interact with B12? How do I optimize D2 absorption?

Does fat content increase the absorption of vitamin D2, or this only apply to D3? Does vitamin D2 interact with B12?

How do I optimize D2 absorption?

Optimizing D absorpt: Vit D3 is superior to D2. Both are fat soluble. Absorption is enhanced with food and fat. To optimize effects, be sure you have vit K2 going in as well -- approx 100 mcg of vit K2 for every 1000 iu of D3 is appropriate. ...Read more

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Effect of acid secretion on absorption of iron and vitamin b12?

Effect of acid secretion on absorption of iron and vitamin b12?

Acid has a profound: Effect on iron. Acid is better. Not an issue with b12, as the issue is intrinsic factor from the stomach which is a cofactor in B12 absorption. ...Read more

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Is it better to swallow or chew vitamin B12 tablets to maximize absorption?

It does not matter: I would say that there is no reason to chew the tablet, but either way absorption should not be affected either way. ...Read more

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Dr. Raj Kapur
747 doctors shared insights

Colectomy (Definition)

It can mean removal of part or complete colon with ...Read more