2024年6月28日 · Vitamin B-12 (cobalamin) plays an essential role in red blood cell formation, cell metabolism, nerve function and the production of DNA, the molecules inside cells that carry genetic information. Food sources of vitamin B-12 include poultry, meat, fish and dairy products.

2024年8月1日 · Vitamin B12 deficiency is a lack of vitamin B12 in your blood. It happens if you aren't eating enough vitamin B12 or if you have trouble absorbing it.

This formulation appears to be effective in raising vitamin B12 blood levels in adults and children [28,29]. A small clinical study with 10 participants (mean age 81 years) found that the bioavailability of a 1,000 mcg cobalamin dose was 2% with intranasal administration, ...

2025年1月15日 · A vitamin B12 blood test is a reliable way to determine if you have adequate levels of this crucial nutrient. Vitamin B12 is essential for nerve function, making red blood cells, and helping your body make DNA. If you don't get enough B12, it can cause health problems like anemia, tingling in your hands and feet, and heart palpitations.

2024年6月29日 · Vitamin B12 and red blood cells. You need B12 in order to make healthy red blood cells, white blood cells, and platelets. Every day, about 1% of your oldest red blood cells are...

2024年1月30日 · Vitamin B12 plays a vital role in helping your body produce red blood cells. Low vitamin B12 levels cause a reduction in red blood cell formation and prevent them from...

Vitamin B12 is needed to form red blood cells and DNA. It is also a key player in the function and development of brain and nerve cells. Vitamin B12 binds to the protein in the foods we eat. In the stomach, hydrochloric acid and enzymes unbind vitamin B12 into its free form.

What is vitamin B12 deficiency anemia? Vitamin B 12 deficiency anemia is a condition in which your body does not have enough healthy red blood cells, due to a lack (deficiency) of vitamin B 12. This vitamin is needed to make red blood cells, which carry oxygen to all parts of your body.

2024年9月10日 · Vitamin B12 deficiency can lead to hematologic and neurological symptoms. Vitamin B12 is stored in excess in the liver, decreasing the likelihood of deficiency.

Complete blood count (CBC) and vitamin B12 and folate levels. Sometimes methylmalonic acid levels or Schilling test. It is important to remember that severe neurologic disease may occur without anemia or macrocytosis. Diagnosis of vitamin B12 deficiency is based on CBC and vitamin B12 and folate levels. CBC usually detects megaloblastic anemia.