Question 1

i  just found out a month ago i have low b12 and i have been on 1000 mg of b12 and i have very regular periods i am 3 days late will low b12 cause tht

Accepted Answer

Not likely: If you had sex since your last period, you may do home pregnancy test. If the result is negative repeat the test 4-5 days later unless you get a period by then. Use first morning urine and follow the instructions for the test carefully.
If you do not wish to be pregnant, use contraception all the time, every time. You may consider implanted contraceptive, or IUD. 
Practice safe sex. 
Get HPV vaccine.

Question 2

is 500mg of b12 to much to take? if so what's the recommended dose?  d3 1000 mg a day to much if so what's the recommended dose?

Accepted Answer

Not too much: 500 mg of B12 is fine. But beware that B12 can compete with folate (folic acid) for absorption, so take some folate (folic acid) too. Metafolin is good.
D3 1000 iu is not too much. Some people need more. Check bloodwork 25 oh d to know your level.. 50-60 is a good number and below 40 is on the low side.

Question 3

is 1000 mcg b12 too much while pregnant?

Accepted Answer

Vit.B12 in pregnancy: Yes 1000 mcg is too much, recommended dose usually  2.5 mcg, i recommend prescribed prenatal vitamin.

Question 4

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.

Question 5

is 2500 mcg b12 too much?

Accepted Answer

B12: If taken daily, it is a very high dose.  B12 is typically nontoxic but can have side effects at high doses.  If taken once a month, then the dose is fine

Question 6

is 5000mcg of b12 too much?

Accepted Answer

No: B12 is safe and has no known toxic dose. 5000 mcg may be more than you need, but it will not harm you.

Question 7

can taking too much b12 be bad?

Accepted Answer

B12: B12 is water soluble and can be taken in relatively high doses without harm.

Question 8

is 5000mcg b12 to much for a daily dose?

Accepted Answer

Yes: A person needs less than 5 microgram of B12 a day. if you are deficient and can not absorb B12 in your intestine talk to your doctor about sub-lingual B12 or injection. You would not nee injection any more than once a month.

Question 9

is 1000mcg of b12 too much to take daily?

Accepted Answer

Maybe: The recommended daily allowance for a health adult is only 2.4 micrograms but depending on other health circumstances such as pernicious anemia or other reasons to have a B12 deficiency, the recommendation could go as high as 2000 micrograms.  B12 is cleared by the kidney so taking too much is urinated out of your system.

Question 10

is 2500 mcg of b12 too much to take at once?

Accepted Answer

No: Inefficiently absorbed and no down side to "too much".

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Doctor answers about:

Is 1000 mg of b12 too much

A member asked:

I just found out a month ago i have low b12 and i have been on 1000 mg of b12 and i have very regular periods i am 3 days late will low b12 cause tht

A member asked:

Is 500mg of b12 to much to take? if so what's the recommended dose? d3 1000 mg a day to much if so what's the recommended dose?

A member asked:

Is 1000 mcg b12 too much while pregnant?

A member asked:

Is 1000 iu of vitamin b12 too much?

A member asked:

Is 2500 mcg b12 too much?

A member asked:

Is 5000mcg of b12 too much?

A member asked:

Can taking too much b12 be bad?

A member asked:

Is 5000mcg b12 to much for a daily dose?

A member asked:

Is 1000mcg of b12 too much to take daily?

A member asked:

Is 2500 mcg of b12 too much to take at once?

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