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Supports myelin production: Vitamin B12 helps form and maintain the myelin sheath — the protective coating around nerves that ensures fast, smooth signal transmission.
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May improve symptoms: Studies show supplementation in people with a deficiency can lead to improvements in pain, tingling, and numbness.
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Reduces nerve-harmful compounds: It may help lower homocysteine, a molecule linked to nerve and vascular damage.
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More common deficiency than expected: Adults over age 50, people with diabetes, or those on long-term metformin often have lower levels.
Importantly, B12 is especially impactful when deficiency is present — it’s not a guaranteed cure, but correcting a true deficit can make a real difference in symptoms.
