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Vitamin B12 Deficiency Causes

A deficiency in vitamin B12 can be caused by numerous factors, which include:

• Nutritional Lack:
  The primary sources of Vitamin B12 are mostly derived from animal products like dairy, meat, and eggs. Individuals who do not consume these animal products are more vulnerable to vitamin B12 deficiency, as plant-based nutrients do not contain vitamin B12.
• Problems with Indigestion:
  The ability of the body to absorb enough vitamins B12 can be obstructed by illnesses relating to the gastrointestinal tract, such as pernicious anemia, Crohn's disease, and celiac disease. These illnesses affect the stomach lining, and the intestine, which makes it difficult for the body to retain vitamin B12.
• Drug:
  Some medications, such as metformin which is used for type 2 diabetes, and proton pump inhibitors, which is used for stomach acid production are two examples of drugs that can obstruct the absorption of vitamin B12, thereby causing vitamin B12 deficiency.
• Aging:
  The body's capacity to ingest vitamin B12 declines with age, increasing the risk of deficiency in older adults. This is caused when the body fails to extract vitamins from food due to changes in the digestive system, leading to cognitive decline and perpetual weakness.