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One study looked at adults age 65 and older who took oral folic acid and vitamin B12 or a placebo
B12 injections bypass the digestive system entirely, delivering 100% of the vitamin directly to your bloodstream
its deficiency causes anemia, fatigue, and weakness
2021, the American Society of Health-System Pharmacists, Inc
B12 supplements may be necessary for some people as the body B12 is important development and functioning of the central nervous system formation of red blood cells synthesis of DNA, the genetic material in the cells functioning of two enzymes responsible for an array of chemical reactions Compounds containing B12 are also called cobalamins
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