Vitamin B12

Vitamin B12, also known as cobalamin, is an essential water-soluble vitamin that plays important roles in red blood cell formation, cell metabolism, nerve function, and the production of DNA. It is naturally found in animal products, including fish, meat, poultry, eggs, milk, and milk products. Vitamin B12 can also be taken as a supplement or in fortified foods.

Vitamin B12, also known as cobalamin, is a single B vitamin with a big job in your body. Here's a breakdown of its key features:

Function:

  • Essential for maintaining healthy nerve and blood cells
  • Plays a crucial role in DNA synthesis
  • Supports brain function

How it works:

  • Acts as a coenzyme, meaning it partners with enzymes to trigger important chemical reactions in the body

Deficiency Symptoms:

  • Can be sneaky and develop slowly
  • Fatigue, weakness, tingling or numbness in hands and feet, anemia, difficulty maintaining balance, cognitive decline like memory problems

Food Sources:

  • Naturally found only in animal products like meat, poultry, fish, eggs, and dairy

Absorption:

  • Requires a specific protein called intrinsic factor produced in the stomach
  • Certain stomach conditions or surgical procedures can hinder B12 absorption

Supplements:

  • Available in various forms like tablets, lozenges, gels, and nasal sprays
  • Can be helpful for people with dietary restrictions (vegans), digestive issues, or those over 50 (absorption rates decline with age)
Anatomical Therapeutic Chemical Classification
B - Blood and blood forming organs
B03 Antianemic preparations
B03A - Iron preparations
B03AE Iron in other combinations
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