Modern Healthspan: How Vitamin D Stops Your Telomeres Shortening | Dr JoAnn Manson

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Peer-Reviewed Research
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Modern Healthspan

Video Summary · June 4, 2026

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Key Takeaways

  • Vitamin D supplementation significantly reduces telomere shortening, with only one year of shortening observed over a four-year period compared to four years in the placebo group.
  • Shorter telomeres are associated with higher risks of chronic diseases such as cardiovascular disease, type 2 diabetes, and osteoporosis fractures.
  • Protecting telomeres may slow biological aging and extend healthspan.

Notable Quotes

“The vitamin D supplement did protect the telomeres in that over four years of treatment, there was only one year of telomere shortening in the vitamin D randomized group.”

Bottom Line

Consider supplementing with Vitamin D to protect your telomeres and potentially reduce the risk of aging-related chronic diseases.

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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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