A healthy amount of vitamin B12 aids in making DNA and nourishes the body’s nerve and blood cells. Absorption of vitamin B12 is a two-step process. As a part of the digestive process, hydrochloric acid separates B12 from the protein in food. When the B12 is separated, it combines with a protein called intrinsic factor, enabling the absorption of B12. When the body cannot produce intrinsic factor, pernicious anemia occurs.
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