Normal Results 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. Some labs use different measurements or may test different samples.
A serum B12 above 300 pg/mL is interpreted as normal. Patients with B12 levels between 200 and 300 pg/mL are considered borderline, and further enzymatic testing may be helpful in diagnosis. Patients with B12 levels below 200 pg/mL are considered deficient.
A serum vitamin B12 level between 200 pg/mL and 900 pg/mL is considered normal, but a threshold of 300 to 350 pg/mL is recognized as a marker for a desirable status in the elderly. The laboratory diagnosis is usually based on low serum vitamin B12 levels or elevated serum methylmalonic acid and homocysteine levels.
Generally 120-680 pmol/L.
A serum B12 level between 300 pg/mL and 900 pg/mL is what is considered normal, according to this article, while results above 900 pg/mL are considered high. If your B12 status is extremely high, it might be a signal that you have a serious issue such as leukemia, diabetes or liver disease.
Key points about vitamin B12 deficiency anemia
Without enough red blood cells, your tissues and organs don't get enough oxygen. Without enough oxygen, your body can't work as well. Symptoms include weak muscles, numbness, trouble walking, nausea, weight loss, irritability, fatigue, and increased heart rate.
A normal vitamin B12 level generally falls between 200 to 800 picograms per milliliter (pg/mL). If your result is between 200 and 300 pg/mL, your result is considered borderline, and your doctor may have you retake the vitamin B12 test or undergo additional testing.
These tests check: whether you have a lower level of haemoglobin (a substance that transports oxygen) than normal. whether your red blood cells are larger than normal. the level of vitamin B12 in your blood.
A vitamin B12 deficiency can cause anaemia due to the lack of red blood cells in the body resulting in dizziness, and shortness of breath.
Patients with serum vitamin B12 levels between 150 and 400 ng/L are considered borderline deficient and should be evaluated further by functional tests for vitamin B12 deficiency.
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.
Vitamin B12 deficiency can indeed lead to weight gain. But the weight gain is not a direct result of the deficiency. Instead, vitamin B12 deficiency causes lethargy or lack of energy, and in turn, inactivity causes weight gain. When you lack the energy to move, you don't burn fat.
Stage 1 is decreased levels of vitamin B12 in the blood. Stage 2 is low concentration of vitamin B12 in the cell and metabolic abnormalities. Stage 3 is increased levels of homocysteine and MMA and decreased DNA synthesis resulting in neuropsychiatric symptoms. Stage 4 is macrocytic anemia.
A lack of vitamin B12 can cause neurological problems, which affect your nervous system, such as: vision problems. memory loss. pins and needles.
Diet. Some people can develop a vitamin B12 deficiency as a result of not getting enough vitamin B12 from their diet. A diet that includes meat, fish and dairy products usually provides enough vitamin B12, but people who do not regularly eat these foods can become deficient.
It's harder to get your B12 from food if you're on a strict plant-based diet. That means you don't eat any animal products, including eggs or dairy. Your doctor will likely suggest taking a daily or weekly dietary supplement to keep your levels up.
Some studies have found people experiencing anxiety have lower levels of vitamin B12, and that people with anxiety and depression at more likely to have a vitamin B12 deficiency.
Vitamin B12 deficiency anemia happens when your body does not have enough healthy red blood cells because your body has a vitamin B12 deficiency. Vitamin B12 is needed to make red blood cells. Because of this, a lack of vitamin B12 can cause anemia.
Once you begin treating your vitamin B12 deficiency, it can take up to six to 12 months to fully recover. It is also common to not experience any improvement during the first few months of treatment. If you can, it's a good idea to address what's causing the deficiency.
Vitamin B12 deficiency anaemia is usually treated with injections of vitamin B12, called hydroxocobalamin. At first, you'll have these injections every other day for 2 weeks or until your symptoms have started improving. Your GP or nurse will give the injections.
Vitamin B12 and folate perform several important functions in the body, including keeping the nervous system healthy. A deficiency in either of these vitamins can cause a wide range of problems, including: extreme tiredness. a lack of energy.
Bananas are a cheap, healthy, and nutrient-dense fruit that can easily become a part of every individual's diet. It is one of the best fruits rich in vitamin B12. Bananas also contain fibre and potassium. It helps manage blood pressure, reduce stress, and relieve constipation and ulcer problems.
Fruits– Though fruits don't contain Vitamin B12; there are some which contain a very small amount of these vitamins like- Banana, apple, and berries.