Question 1

vitamin b12 1000 mcg, what is the half life on this vitamin and how long until it's out of your system?

Accepted Answer

No useful half life.: Typical half life does not make much sense since the vitamin is not strictly "metabolized." It is taken up by tissues and converted by tissues to the active form- methylcobalamin.  Stored in liver and bone marrow- less so in other organs.  Once these sites are full, the remainder is excreted at a rate dependent upon state of hydration, other meds, etc.

Question 2

could a high level of vitamin b12 affect the digestive system in the body?

Accepted Answer

The other way around: Vitamin B12 is not known to be toxic in any amount. However, one of the causes of high blood levels of B12 is liver disease including hepatitis ; cirrhosis. Liver disease certainly affects the digestive system. But it is not high B12 that causes liver disease but liver disease that can cause high B12 levels. As i mentioned earlier, other causes of high B12 include kidney disease ; blood disorders.

Question 3

any way to cure the intrinsic factor in the digestion system for the absorption of vitamin b12 complex?

Accepted Answer

Yes and No: Most intrinsic factor deficiencies are due to either partial gastrectomy or auto-antibodies that attacked the parietal cells of the stomach.  In both, the damage may already be done.  However, you can get B12 in the body in a few ways.  1) take a higher dose of B12 starting at 2mg (literature supported), 2) take sublingual drops (salivary gland absorption), 3) get im injections of methyl b12.

Question 4

what is the max daily dose of vitamin b12 an adult female with very low levels can take? if her face is flushed is she taking too much?

Accepted Answer

1000 micro: Equals one milligram

this dose works for most people.

See doc if any trouble.

Question 5

symptoms of vitamin b12 low?

Accepted Answer

Many: Main ones are: fatigue, neurological symptoms (like numbness ; tingling), GI symptoms (like nausea, GI upset) and weight loss.

Question 6

what food contains vitamin b12?

Accepted Answer

Fish, fowl, animal: Vitamin B12 is found in the fish, chicken, and mammals of all sorts.

Question 7

why would ihave low vitamin b12?

Accepted Answer

Possible causes: You could have a low b-12 if you are vegetarian, have been for several years and don't take supplemental b-12.  It could be low if you don't make intrinsic factor.  This is made in the stomach and is needed to absorb b-12.  Lack of intrinsic factor is usually an autoimmune disorder.  You could have low b-12 due to taking proton pump inhibitors for a long time as stomach acid is needed as well.

Question 8

can you overdose on vitamin b12?

Accepted Answer

Virtually nontoxic: At any dose. I do not believe that you will find very much written on the toxic effects of B12 although I have had a couple of patients who took something on the order of 10x what I had prescribed them was already in the 10,000IU range so they were taking about 100,000IU daily for several weeks and the patient developed diarrhea.  When he stopped that resident, within several days diarrhea stopped

Question 9

what does high vitamin b12 mean?

Accepted Answer

Ingesting  much B12.: No known adverse effect of too much vitamin B12 in blood.  You may not need to take any b12.

Question 10

is 1000 iu of vitamin b12 too much?

Accepted Answer

Check levels first: As a supplement or replenishing a B12 deficiency?

I would check the B12 levels first to make sure.  Unless you have no meat intake or have difficulties with absorbing in stomach from a stomach  surgery or have pernicious anemia.

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Can vitamin b12 flush your system

A member asked:

Vitamin b12 1000 mcg, what is the half life on this vitamin and how long until it's out of your system?

A member asked:

Could a high level of vitamin b12 affect the digestive system in the body?

A member asked:

Any way to cure the intrinsic factor in the digestion system for the absorption of vitamin b12 complex?

A member asked:

What is the max daily dose of vitamin b12 an adult female with very low levels can take? if her face is flushed is she taking too much?

A member asked:

Symptoms of vitamin b12 low?

A member asked:

What food contains vitamin b12?

A member asked:

Why would ihave low vitamin b12?

A member asked:

Can you overdose on vitamin b12?

A member asked:

What does high vitamin b12 mean?

A member asked:

Is 1000 iu of vitamin b12 too much?

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