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Instead, it exists as a research compound, which means its quality, purity, and concentration can vary significantly between suppliers
It may be beneficial to adopt a potassium-rich pernicious anemia diet
There are several causes of vitamin B12 deficiency, including poor dietary intake, malabsorption, and pernicious anemia
I.DeLucaJ.IsaacsS.BaggishA.WeinerR.et al (2015)
Common research dose Community research plans often reference 300-500 mcg per day
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