• Causes of Vitamin B12 Deficiency

    Vitamin B12 Deficiency in Adults Over 50 Years Old

    According to the Office of the Dietary Supplements, more than 30 percent of adults aged 50 years old and above may be suffering from atrophic gastritis—a condition that result to excessive growth of intestinal bacteria preventing the body to absorb Vitamin B12 in food.

    Vitamin B12 Deficiency in Infant and Children

    According to Adele Pillitteri’so Maternal: Care of the Childbearing and Childrearing, the main cause of Vitamin B12 deficiency in infant and children is commonly due to the lack of ingestion of Vitamin B12. A vegetarian, lactating mother thus has to consult a pediatrician for Vitamin B12 supplement for her breast-fed infant and children since cow’s milk and breastmilk are their primary source of this vitamin. Leaving Vitamin B12 deficiency untreated can result to irreversible neurologic complications in addition to hematologic effects.

    Vitamin B12 Deficiency in Vegetarians

    While in general, reduced absorption of vitamin B12 is the usual cause of B12 deficiency, in vegetarians, low or negligible dietary B12 is commonly implicated. The Dietitian’s Guide to Vegetarian Diets: Issues and Applications clearly noted that a strict vegan diet is theoretically devoid of vitamin B12. Although some foods may be contaminated with this nutrient, it is deemed unreliable; therefore, vegans need a regular and reliable source of B12 either in fortified food or as a vitamin supplements.

    Vitamin B12 Deficiency in Athletes

    Lack or reduced absorption of vitamin B12 is normally the main cause of vitamin B12 deficiency among athletes. This is because athletes likewise follow strict diet to maintain their stamina; at times to the point of consuming very limited consumption of meats and poultry in their daily diets or in their vitamin supplements.

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