Why is Vitamin B12 important for your Healthspan?
Vitamin B12 levels are fundamental for supporting neurological function and cellular metabolism. Adequate B12 is crucial for nerve tissue health, proper brain function, and the efficient production of red blood cells. Low levels can lead to fatigue, weakness, memory issues, and potentially irreversible nerve damage, impacting overall vitality and cognitive resilience over time. Monitoring B12 helps ensure these vital systems operate effectively, supporting sustained physical and mental well-being.
What is Vitamin B12?
Vitamin B12, also known as cobalamin, is a water-soluble vitamin that plays a critical role in several major bodily functions. Unlike other water-soluble vitamins, B12 can be stored in the liver for several years. It is essential for the proper development and function of the brain and nerve cells, contributing to the formation of myelin, the protective sheath around nerves. Vitamin B12 is also indispensable for the production of healthy red blood cells in the bone marrow and is involved in DNA synthesis and repair. A unique aspect of B12 absorption is its requirement for intrinsic factor, a protein produced in the stomach, which allows it to be absorbed in the small intestine. This means that even with sufficient dietary intake, absorption issues can lead to deficiency. B12 is primarily found in animal-derived foods such as meat, fish, poultry, eggs, and dairy products.
How do we take action?
To maintain healthy Vitamin B12 levels, one should ensure a diet that includes adequate sources of this nutrient, primarily from animal products. Individuals following vegetarian or vegan diets, older adults, and those with certain gastrointestinal conditions (like pernicious anemia, Crohn's disease, or those who have undergone gastric surgery) may be at higher risk for deficiency and should consult with a healthcare provider regarding regular supplementation or B12 injections. If levels are found to be low, investigating and addressing the underlying cause of deficiency is important. Regular monitoring of Vitamin B12 helps ensure optimal neurological and cellular health, supporting overall Healthspan.
Additional Sources
Herrmann, W., & Obeid, R. (2012). Cobalamin deficiency. Sub-cellular biochemistry, 56, 301–322. https://doi.org/10.1007/978-94-007-2199-9_16
Watanabe F. (2007). Vitamin B12 sources and bioavailability. Experimental biology and medicine (Maywood, N.J.), 232(10), 1266–1274. https://doi.org/10.3181/0703-MR-67
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