Is 1200 too high for B12?

Since B12 is a water-soluble vitamin, it’s generally considered safe, even at high doses. No Tolerable Upper Intake Level (UL) has been established for B12, due to its low level of toxicity. UL refers to the maximum daily dose of a vitamin unlikely to cause adverse side effects in the general population.

What does it mean when your B12 is over 1000?

Compared to the NN group, a persistent elevated plasma B12 ≥ 1000 ng/mL was strongly associated with the occurrence of solid cancer (HR 5.90 [95% CI 2.79–12.45], p < 0.001), contrary to non-persistent plasma B12 elevation (p = 0.29).

Is 1500 too high for B12?

There is no consensus on the definition of high or elevated B12. Previous studies have chosen a variety of levels to represent high or very high B12 (pmol/l) levels. Some examples include: 664.219; 5131; 700 (high) and 1500 (very high)11; and 601 (high) and 1000 (very high)10.

Why is my vitamin B-12 so high?

High levels of vitamin B-12 can be a sign of liver disease, certain types of leukemia, or diabetes. Vitamin B-12 deficiency is a common condition. Between 1.5 and 15 percent of Americans have low levels of vitamin B-12, according to the National Institutes of Health .

What causes extremely high B12 levels?

Usually, excess vitamin B12 is removed in the urine. Conditions that can increase B12 level include: Liver disease (such as cirrhosis or hepatitis) Myeloproliferative disorders (for example, polycythemia vera and chronic myelogenous leukemia)

What does a B12 of 1500 mean?

Understanding the Results But a normal level of vitamin B12 in your bloodstream is generally between 190 and 950 picograms per milliliter (pg/mL). Between 200 to 300 pg/mL is considered borderline and your doctor may do more testing. Below 200 pg/mL is low and more testing is needed.

How do they treat high B12 levels?

If you’re diagnosed with a B-12 deficiency, the goal of treatment is to increase your level of vitamin B-12. Your treatment may include: vitamin B-12 injection, with more frequent injections for those with severe deficiencies. daily vitamin B-12 supplements, such as Cyanocobalamin, which is a manmade vitamin B-12.

What happens if your vitamin B-12 is high?

In some people, high levels of B12 may cause gastrointestinal problems such as bloating and diarrhea. And if you have high blood pressure or poor cardiovascular health, having too much B12 may further complicate these issues. Pregnant and breastfeeding women may also need to be especially mindful of B12 levels.

Why is my B12 so high?

What is a normal B12 level for an elderly person?

For brain and nervous system health and prevention of disease in older adults, serum B12 levels should be maintained near or above 1000 pg/ml.” The tragedy is with people who are symptomatic but are in the low range of vitamin B12 normal levels, between 200-500.

Is 1000 mcg of B12 too much?

). While megadoses of up to 2,000 mcg are considered safe in treating B12 deficiency, it’s always best to avoid excessive amounts of any vitamin, especially when it’s not needed. Though daily high doses of B12 are unlikely to cause harm in most people, extremely high doses should be avoided unless prescribed by a healthcare professional.

What does a high vitamin B12 level indicate?

High blood levels of vitamin B12 may be a sign of cirrhosis or hepatits infection. Further tests are necessary to diagnose the problem.

Is a B12 level of 250 too low?

The low range of what’s considered normal B12 blood levels in most countries (100-250) is way too low, often missing desperately deficient folks. People show symptoms of B12 deficiency even in higher levels, as deficiencies begin to appear in the cerebrospinal fluid below 550.