- 1 What is the normal range for B12 levels?
- 2 What is considered a low B12 level?
- 3 What are symptoms of low vitamin B12?
- 4 Should I be worried if my B12 is high?
- 5 Is 400 a low B12 level?
- 6 How long does it take to recover from B12 deficiency?
- 7 How can I raise my B12 levels?
- 8 How long does it take to get B12 levels up?
- 9 When should I take B12 morning or night?
- 10 Can low B12 cause weight gain?
- 11 What causes elevated B12 levels?
- 12 What does high B12 mean in blood test?
- 13 What does high Vitamin B12 indicate?
What is the normal range for B12 levels?
Normal values are 160 to 950 picograms per milliliter (pg/mL), or 118 to 701 picomoles per liter (pmol/L). Normal value ranges may vary slightly among different laboratories.
What is considered a low B12 level?
Levels of vitamin B-12 are low if they are below 200 ng/mL. This result suggests a vitamin B-12 deficiency, pernicious anemia, or an overactive thyroid. People with low vitamin B-12 levels often experience neurological symptoms.
What are symptoms of low vitamin B12?
Symptoms of vitamin B12 deficiency
- a pale yellow tinge to your skin.
- a sore and red tongue (glossitis)
- mouth ulcers.
- pins and needles (paraesthesia)
- changes in the way that you walk and move around.
- disturbed vision.
Should I be worried if my B12 is high?
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. If you think you may be deficient in B12, speak with your doctor, who can recommend an appropriate treatment based on your level of deficiency.
Is 400 a low B12 level?
Patients with serum vitamin B12 levels between 150 and 400 ng/L are considered borderline and should be evaluated further by functional tests for vitamin B12 deficiency.
How long does it take to recover from B12 deficiency?
Recovery from vitamin B12 deficiency takes time and you may not experience any improvement during the first few months of treatment. Improvement may be gradual and may continue for up to six to 12 months.
How can I raise my B12 levels?
To increase the amount of vitamin B12 in your diet, eat more of foods that contain it, such as:
- Beef, liver, and chicken.
- Fish and shellfish such as trout, salmon, tuna fish, and clams.
- Fortified breakfast cereal.
- Low-fat milk, yogurt, and cheese.
How long does it take to get B12 levels up?
A response usually is seen within 48 to 72 hours, with brisk production of new red blood cells. Once B12 reserves reach normal levels, injections of vitamin B12 will be needed every one to three months to prevent symptoms from returning.
When should I take B12 morning or night?
You may need to take vitamin B-12 separately from the above drugs and supplements — say, one in the morning and one at night — so you can get the full dose of vitamin B-12. Don’t take vitamin B-12 supplements if you have sensitivities or allergies to vitamin B-12, cobalt, and any other ingredients.
Can low B12 cause weight gain?
People with vitamin B12 deficiency are likely to experience a wide range of symptoms, though weight gain is unlikely one of them. If you’re experiencing unexplained weight gain, consider discussing it with your healthcare provider or a registered dietitian to determine the root cause.
What causes elevated B12 levels?
The most common cause of high B12 in the blood is due to recent ingestion or injection of supplemental vitamin B12. We don’t worry about overdosing on B12 supplements because excess can be excreted in your urine. It could also be possibly from your diet if high in animal products such as meat, eggs, and shellfish.
What does high B12 mean in blood test?
Elevated levels of serum cobalamin may be a sign of a serious, even life-threatening, disease. Hematologic disorders like chronic myelogeneous leukemia, promyelocytic leukemia, polycythemia vera and also the hypereosinophilic syndrome can result in elevated levels of cobalamin.
What does high Vitamin B12 indicate?
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.