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So, a 1 mg dose of B12 is the same as 1000 mcg
Other factors that could lead to B12 deficiency are: Lack of adequate production of the intrinsic factor needed for B12 absorption B12 deficiency is common in elderly people as absorption of the vitamin reduces with age People who have had any intestinal surgery, such as that for weight loss Those with gut conditions such as Crohn's Disease, inflammatory bowel disease, or celiac disease SLIDESHOW See Slideshow Vitamin B12 injections Vitamin B12 supplements are given based on the condition that causes deficiency
Vitamin B12 in health and disease
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The lack of adequate vitamin B12 from sources such as meat, eggs, and dairy, can lead to deficiencies causing anemia, intestinal issues, and other medical conditions
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