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It has also shown promise in cardiac tissue repair and neuroprotection
Shared Symptoms Feeling tired all the time Weak muscles Achy joints Numbness or tingling in hands and feet Low immunity and frequent infections Brain fog and poor concentration Low mood or depression Because these symptoms overlap, clinicians often evaluate vitamin d3 and b12 together rather than in isolation
We link directly to independent, primary sources we don't summarize or interpret findings
We avoid using tertiary references
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