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Doctor insights on: Does Vitamin B12 Affect Estrogen Levels

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Hi is there any possible link between vitamin B12 and a bit high estrogen levels?

Hi is there any possible link between vitamin B12 and a bit high estrogen levels?

Nothing definitive: A few studies have been done which show influence in both directions: post-menopausal women who took vitamin B12 (and other) supplements showed increased estradiol levels. Women with surgical removal of uterus/ovaries were given estradiol and showed increased B12 levels! The exact connection is unclear. Eat a balanced diet including meat/dairy products; vegetarians may need B12 supplements. ...Read more

Estrogen (Definition)

Estrogen is a hormone that is secreted by the ovaries and affects ovulation, ...Read more


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What causes high vitamin B12 levels?

What causes high vitamin B12 levels?

Intake + Absorption: Vitamin b12, aka cyanocobalamin, is common in a huge variety of foods; low intake rare. However, none of us absorb B12 directly. Instead, the cells of the upper ⅔ of the stomach which secrete hydrochloric, hcl, acid also produce & secrete a protein, called intrinsic-factor, which binds b12. The small intestines absorb intrinsic-factor with whatever B12 is bound, & the B12 is thereby also absorbed. ...Read more

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Vitamin b12 levels came back 1500!! Should I be concerned?

Vitamin b12 levels came back 1500!! Should I be concerned?

Needs clarification: The first thing I would do is check the lab result...perhaps a decimal point is out of place as a normal result is in the 200 to 600 pg/ml range. Are the units correct ... pg (picograms) per milliliter. Some medications can affect B12 levels. It would be unusual to have such a high level and no other signs of liver/kidney disease or cancer. ...Read more

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Will taking a vitamin B12 complex help with low energy levels?

Will taking a vitamin B12 complex help with low energy levels?

Vitamin B12 : It may help with low energy levels depending on the cause. It is always best to consult a physician to determine the cause of fatigue, low energy, weakness, asthenia, etc. Before self-medicating with vitamin supplements. While vitamin B12 is safe, the cause for feeling tired may have to do with something unrelated to it. ...Read more

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My vitamin B12 level is 735ng/l please can you give me any advice ?

My vitamin B12 level is 735ng/l please can you give me any advice ?

Ok: Optimal level is 800, so you are close. A little more B12 will not hurt you, but your level is pretty good. ...Read more

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What happens if my vitamin B12 levels are above normal, is that ok?

What happens if my vitamin B12 levels are above normal, is that ok?

Nothing: Vitamin B12 is a water-soluble vitamin and is easily excreted. It is nearly impossible to achieve toxic levels even with extreme levels of intake. Deficiencies are much more clinically relevant. ...Read more

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My VITAMIN B12 was check yesterday. My Level was 293. Should I be taking a over the counter B12, if so how much @ day?

Depends: Your B12 level is low. Aim for a goal level of 800. Take as much as is needed to achieve that level.
More information on:
http://drfairchild.blogspot.com/2012/12/b12-deficiency.html ...Read more

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How does one go about lowering a high level of vitamin B12 of 1000? It has been that high since 2010. My B6 is also high - 33.4.

Comments: Am not personally troubled when my patients' B-12 comes back elevated, as it is truly unlikely that there will be any problem in near or distant future, but do have them stop the vitamin and recheck in 3 months. Although B-6 can be toxic in some patients, this too will drop over time if you stop it. Your level is not profoundly elevated, currently. ...Read more

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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?

Interesting question: Adults generally need 2.6 micrograms b12/day. To replace deficiencies, im shots bypass gut absorption problems that can contribute to deficiency in the first place. 1, 000 micrograms of intramuscular cobalamin can be given once/day for 10 days, then once/week for four weeks, followed by once/month for life. Sublingual b12, 500-1000mcg/day. The form of B12 (cobalamin) may be important; see comment. ...Read more

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My vitamin B12 levels are 2000 ml what does that mean?

My vitamin B12 levels are 2000 ml what does that mean?

Good!: You don't need vitamin B12 treatment (unless the level is due to getting B12 shots). ...Read more

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What can cause extremely high vitamin B12 levels? My result was >2,000... I thought diet and/or supplements wouldn't cause high levels.

What can cause extremely high vitamin B12 levels? My result was >2,000... I thought diet and/or supplements wouldn't cause high levels.

Needs Evaluation: Elevated levels of B12 are non-specific but can be associated with bone marrow diseases like polycythemia. Best to be evaluated by a hematologist.

Thanks for trusting HealthTap! ...Read more

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What does a high level of vitamin B12 do to me?

Nothing.: None toxic and will simply be urinated out, after your body's stores are filled. I take 2500mcg/day! for years! ...Read more

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Could a high level of vitamin B12 affect the digestive system in the body?

Could a high level of vitamin B12 affect the digestive system in the body?

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. ...Read more

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What do you think, could methylcobol increase vitamin B12 levels in the blood?

What do you think, could methylcobol increase vitamin B12 levels in the blood?

Not available in US: In us we use vitb12 injectable, nasal spray or orally to correct vit B12 deficiency. ...Read more

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Can taking vitamin B12 and eating a diet that helps elevate B6 levels help fertility chances?

Can taking vitamin B12 and eating a diet that helps elevate B6 levels help fertility chances?

Yes: But please remember that there are a great many non caloric nutrients in natural food. You can't pick out one two and give them priority. ...Read more

Dr. Randy Baker
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Vitamin B12 (Definition)

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