An Adult Who Eats an Adequate,balanced Diet Is Diagnosed with a Vitamin

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​An Adult Who Eats an Adequate,balanced Diet Is Diagnosed with a Vitamin

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The Answer is Vitamin B₁₂ deficiency most often reflects poor absorption due to (1)too little stomach acid to liberate vitamin B₁₂ from food or (2)a lack of intrinsic factor (IF),a compound made by the stomach and needed for B₁₂ absorption.There are a few reasons for B₁₂ deficiency that are not associated with inadequate dietary intake.With age,many people lose their ability to produce enough stomach acid and intrinsic factor to allow efficient absorption of vitamin B₁₂.Additionally,intestinal diseases,surgeries,or stomach infection with an ulcer-causing bacterium can also impair B₁₂ absorption.Taking a common diabetes drug can also make vitamin B₁₂ deficiency likely.In cases of B₁₂ malabsorption,the vitamin must be supplied by injection or via nasal spray to bypass the defective absorptive system.

An Adult Who Eats an Adequate,balanced Diet Is Diagnosed with a Vitamin

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​An Adult Who Eats an Adequate,balanced Diet Is Diagnosed with a Vitamin

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An Adult Who Eats an Adequate,balanced Diet Is Diagnosed with a Vitamin

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