Cobalamin (Vit B12) - An Essential Micro-nutrient

Cobalamin (Vitamin B12): An Essential Micronutrient

Vitamin B12 is an essential micronutrient belonging to the group of water-soluble vitamins. Also known as cobalamin, it plays a considerable role in cellular metabolism — acting as a co-factor in DNA synthesis and amino acid metabolism, and playing a huge role in the proper functioning of the nervous system and maturation of bone marrow. Deficiency is linked to cancers, macrocytic anaemia, cardiovascular diseases, and neurological issues.

Sources of Vitamin B12

Cobalamin is usually produced by bacteria. Milk, eggs, fish, cheese, liver, kidney, and muscle meat are good dietary sources. More than 70% of the vitamin’s activity is preserved while cooking most foods. Vegetarians are at particular risk of deficiency since B12 is predominantly found in animal foods.

Risk Factors for Vitamin B12 Deficiency

• Vegetarians unable to acquire adequate B12 from their diet

• Older adults

• People with alcohol addiction

• People with gastrointestinal disorders or those who’ve had gastrointestinal surgery

• People with pernicious anaemia

• Expecting mothers and infants with inadequate food intake

• People taking medications for indigestion, acidity, or diabetes (which can impair B12 absorption)

The Genetic Dimension

Genetic predisposition may change the status of Vitamin B12 by targeting the proteins involved in its absorption, intracellular metabolism, and cellular uptake. Research on monozygotic and dizygotic twins reports that B12 heritability is estimated at 59%. Single-nucleotide polymorphisms (SNPs) in gene clusters interact with the environment and change B12 status. Understanding your genetic predisposition to B12 deficiency can help you take targeted preventive action through diet and supplementation.

Vitamin B12 and Gut Health

Gut health is a critical factor in B12 absorption and overall health. A well-planned diet, intestinal health management, and restraining from unnecessary antibiotics all contribute to maintaining healthy B12 levels. Research on probiotic therapies continues to grow in this area.