- 1 What is considered a low B12 level?
- 2 Is 170 low for B12?
- 3 What is the optimal level of B12?
- 4 Is 180 low for B12?
- 5 What happens when B12 is low?
- 6 How long does it take to recover from B12 deficiency?
- 7 How long does it take to get B12 levels up?
- 8 When do you need a B12 shot?
- 9 What are the neurological symptoms of B12 deficiency?
- 10 Is 400 a low B12 level?
- 11 Should I be worried if my B12 is high?
- 12 Can vitamin B12 increase hemoglobin?
- 13 How often should B12 levels be checked?
- 14 What causes vitamin B12 deficiency?
- 15 How can I raise my B12 levels?
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.
Is 170 low for B12?
Vitamin B12 status is typically assessed via serum or plasma vitamin B12 levels. Values below approximately 170–250 pg/mL (120–180 picomol/L) for adults  indicate a vitamin B12 deficiency.
What is the optimal level of B12?
The vitamin B12 standard reference range is 200–700 pg/ml whereas the proposed optimal range is 500–1300 pg/ml . Higher vitamin B12 ranges have been associated with increased cognitive function, and reflexes, decreased brain atrophy, confusion, weakness and depression .
Is 180 low for B12?
In our lab, the lower normal limit of vitamin B12 is 180 picograms per milliliter (pg/ml) and the normal range is 180–918 pg/ml. In a recent case series of people with low B12 levels, only 29% of them had anemia.
What happens when B12 is low?
Not having enough B12 can lead to anemia, which means your body does not have enough red blood cells to do the job. This can make you feel weak and tired. Vitamin B12 deficiency can cause damage to your nerves and can affect memory and thinking.
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 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 do you need a B12 shot?
Vitamin B12 Shots Are Very Effective
An untreated vitamin B12 deficiency can lead to neurological problems or pernicious anemia, which occurs when your body doesn’t have enough B12 to produce the amount of red blood cells it needs ( 16 ). Vitamin B12 shots are the most common way to prevent or treat a deficiency.
What are the neurological symptoms of B12 deficiency?
A lack of vitamin B12 can cause neurological problems, which affect your nervous system, such as:
- vision problems.
- memory loss.
- pins and needles (paraesthesia)
- loss of physical co-ordination (ataxia), which can affect your whole body and cause difficulty speaking or walking.
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.
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.
Can vitamin B12 increase hemoglobin?
A significant increase in hemoglobin appeared from very low vitamin B12 concentration and up to approx. 400 pg/mL, while hemoglobin did not significantly change from 700 pg/mL and onwards. Vitamin B12 injections were used by 34% of athletes, significantly more often by endurance than by strength athletes.
How often should B12 levels be checked?
In mild vitamin B12 deficiency, we recommend repeat measurements of serum vitamin B12, homocysteine, and methylmalonic acid levels two to three months after initiating treatment.
What causes vitamin B12 deficiency?
However, the most common cause of vitamin B-12 deficiency anemia is a lack of a substance called intrinsic factor, which can be caused when your immune system mistakenly attacks the stomach cells that produce this substance. This type of anemia is called pernicious anemia.
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.