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Deficiency isn't common, but can produce some scary side effects when it does happen. Lack of vitamin B12 can cause megaloblastic anemia—a condition characterized by larger than normal red blood ...
Vitamin B 12 deficiencies have a greater effect on young children, pregnant and elderly people, and are more common in middle and lower-developed countries due to malnutrition. [10] The most common cause of vitamin B 12 deficiency in developed countries is impaired absorption due to a loss of gastric intrinsic factor (IF) which must be bound to ...
Vitamin B12 The body’s ability to absorb B12 often declines with age , and some medications commonly taken later in life—including proton pump inhibitors and the diabetes drug metformin—can ...
Your body can’t make vitamin B12, so you need to get it from outside sources like meat, dairy, eggs, fortified foods, and supplements, the NIH says. ... “The effects of supplements are often ...
Vitamin B 12 cannot be produced by the human body, and must be obtained from the diet. [2] The body normally gets enough vitamin B 12 from the consumption of foods from animal sources. [2] Inadequate dietary intake of animal products such as eggs, meat, milk, fish, fowl (and some type of edible algae) can result in a deficiency state. [134]
Although the healthy body stores three to five years' worth of B 12 in the liver, the usually undetected autoimmune activity in one's gut over a prolonged period of time leads to B 12 depletion and the resulting anemia; pernicious anemia refers to one of the hematologic manifestations of chronic auto-immune gastritis, in which the immune system ...