Vitamin B12 (Cobalamin)

Indications

A deficiency in Vitamin B12 (cobalamin) can result in elevated homocysteine levels. Vitamin B12 is crucial for proper nervous system function and is obtained exclusively through diet, as the body cannot produce it. It can also be supplemented via dietary supplements and medications. A deficiency in B12 can lead to anemia, which may cause symptoms like fatigue, altered sensation, and impaired reflexes.

Additional Information

If you belong to a risk group for B12 deficiency or are experiencing symptoms such as headaches, fatigue, difficulty concentrating, or dizziness, it may be advisable to test your B12 levels. A lack of Vitamin B12 can lead to a specific type of anemia known as megaloblastic anemia, which results in fatigue, weakness, and paleness. Given B12’s role in nerve function, a deficiency can cause tingling and numbness in extremities, balance issues, memory problems, depression, confusion, and other neurological symptoms. Additionally, B12 deficiency is associated with persistent fatigue.

Vitamin B12 is primarily found in animal products such as meat, fish, shellfish, dairy, and eggs. This means individuals following a strict vegetarian or vegan diet are at a higher risk for B12 deficiency. Monitoring B12 levels is therefore particularly important for these groups, and supplementation may be necessary if tests indicate low levels.