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If your B12 is genuinely low, replacing it can lift the fatigue, brain fog, and weakness a deficiency brings
Even if you look at the National Institutes of Health website, they'll tell you there is no toxicity to B12
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0.2 mL delivers the 3 mg target
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It doesn't significantly affect appetite, energy levels, or muscle growth
Avoid repeated freeze-thaw cycles and keep materials in their original sealed container until ready for use
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