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How Long Does B12 Stay in the Body
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With that in mind, here is a realistic timeline for people who are correcting a genuine deficiency
Why B12 Matters: Vitamin B12 is essential for: Red blood cell production DNA synthesis Nerve function Mental clarity Energy metabolism Its especially critical for vegetarians, vegans, older adults, or those with conditions like pernicious anemia or digestive malabsorption issues (e.g., celiac, Crohns, or low stomach acid)
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