One cause of B12 deficiency includes pernicious anemia, a condition that results in a reduction of red blood cells when the intestines cannot absorb enough vitamin B12
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For example, a 2020 study gave 202 people with mild mental impairment and low or low-normal B12 levels and elevated homocysteine levels B12 replacement therapy for 3 months ( After the treatment, 84% of the participants reported significant improvements in symptoms, like poor focus, memory decline, and forgetfulness ( Glossitis is a medical term that refers to an inflamed, red, and painful tongue
"During pregnancy, the demand for nutrients like vitamin B12 increases
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In their review, Doets et al