Siim Land: One Nutrient Deficiency Could Explain Premature Gray Hair

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Peer-Reviewed Research
S
Siim Land

Video Summary · March 24, 2026

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Key Takeaways

  • Test for B12 deficiency if experiencing premature graying, especially if under 20 years old.
  • Increase dietary B12 intake through meat and animal products, or consider supplements if deficient.
  • Monitor other micronutrients like iron, zinc, magnesium, and copper, as deficiencies can also contribute to premature graying.
  • Consider methylated B12 supplements if you have MTHFR variations, though cyanocobalamin is also effective.
  • Aim for optimal B12 levels between 400-900 pg/mL for longevity and reduced mortality risk.

Supplements & Protocols Mentioned

  • Vitamin B12 (Cyanocobalamin): Common form of B12 supplement.
  • Vitamin B12 (Methylcobalamin): Methylated form, often preferred for methylation support.
  • Magnesium, Iron, Zinc, Copper: Other key nutrients for hair health.

Products & Gear Mentioned

Notable Quotes

“Fixing vitamin B12 deficiency reverses hyperpigmentation of skin, hair, and nails in people with white hair.”

“Low serum B12 below 190 is associated with a 39% higher risk of all-cause mortality.”

Bottom Line

Test for and address B12 deficiency and other micronutrient deficiencies to potentially reverse premature gray hair and support overall health.

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Medical Disclaimer

This article is for informational purposes only and does not constitute medical advice. The research summaries presented here are based on published studies and should not be used as a substitute for professional medical consultation. Always consult a qualified healthcare provider before making any changes to your health regimen.

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