Vitamin B12 (Cobalamin)
Support for blood, cell division, and the immune system
Vitamin B12 plays an essential role in several processes in the body. It contributes to the normal formation of red blood cells, which is important for oxygen transport in the blood. Red blood cells contain hemoglobin, a protein that binds oxygen and transports it to tissues in the body. Adequate Vitamin B12 is therefore crucial for maintaining a well-functioning circulatory system.
Additionally, Vitamin B12 plays a role in the cell division process. Cell division is a crucial function for growth, repair, and renewal of tissues such as the skin and intestinal epithelium.
Vitamin B12 also supports the normal function of the immune system. It helps the body defend itself and contributes to good resistance against external influences.
Sources of Vitamin B12
Vitamin B12 is found exclusively in animal products. Good dietary sources include meat, fish, eggs, milk, and dairy products such as cheese and yogurt. Organ meats, such as liver, are particularly rich in B12.
For vegetarians and vegans, it can be more difficult to get enough Vitamin B12, as plant-based foods do not contain this vitamin. Fortified foods, such as certain breakfast cereals and plant-based milk alternatives, can provide an option. Additionally, supplements may be needed to meet the daily requirement.
Forms and Absorption
Vitamin B12 comes in various forms, with methylcobalamin and cyanocobalamin being the most well-known. Methylcobalamin is the active form that is directly used by the body, while cyanocobalamin must first be converted in the liver.
The absorption of Vitamin B12 occurs in the small intestine and depends on the presence of a protein called intrinsic factor, which is produced in the stomach. This protein binds to B12 and ensures that it can be effectively absorbed by the body.
Since Vitamin B12 is a water-soluble vitamin, any excess is stored in the liver, where it can be kept for months to years. This means that a deficiency may not be noticeable for a long time.
For optimal absorption, it is important to eat a varied diet and, if necessary, use fortified foods or supplements.
synonyms for Vitamin B12 (Cobalamin): Vitamin B12, cobalamin, cyanocobalamin, methylcobalamin, adenosylcobalamin and hydroxocobalamin.
