Here’s a list of studies about vitamin D and longevity:
Serum 25-Hydroxyvitamin D Has a Modest Positive Association with Leukocyte Telomere Length in Middle-Aged US Adults (2017)
Conclusion: A study of 4,260 adults found that those with higher vitamin D levels also had longer telomeres.
The Association of Telomere Length and Serum 25-Hydroxyvitamin D Levels in US Adults: The National Health and Nutrition Examination Survey (2017)
Conclusion: A study of 4,347 American adults found that those with higher vitamin D levels also had longer telomeres.
Relationship Between Plasma 25-Hydroxyvitamin D and Leucocyte Telomere Length by Sex and Race in a US Study (2016)
Conclusion: In a study of 1,154 older adults, vitamin D-deficient white people were found to have shorter telomeres.
Note: This article provides an overview of all the genes and processes vitamin D is involved in your body, including prevention of a wide variety of diseases.
Conclusion: In this study investigating the correlation between vitamin D levels and schizophrenia severity, it was also found that women with higher vitamin D levels also had longer telomere length – indicating that vitamin D slows down cellular aging.
Avoidance of Sun Exposure is a Risk Factor for All-Cause Mortality: Results from the Melanoma in Southern Sweden Cohort (2014)
Conclusion: A 20-year prospective study of 29,518 Southern Swedish women found that the mortality rate for women who reported to actively avoid sun exposure was DOUBLE compared to women who reported enjoying the highest amount of sun exposure. “The results of this study provide observational evidence that avoiding sun exposure is a risk factor for all‐cause mortality. Following sun exposure advice that is very restrictive in countries with low solar intensity might in fact be harmful to women’s health. We conclude that women who avoid sun exposure are at an increased risk of all‐cause death with a twofold increased mortality rate as compared to those with the highest sun exposures.”
Assessment of the Potential Role of Active Vitamin D Treatment in Telomere Length: A Case-Control Study in Hemodialysis Patients (2012)
Conclusion: A study of 62 hemodialysis patients found that those receiving vitamin D treatment had longer telomeres compared to hemodialysis patients not receiving vitamin D treatment.
Conclusion: A 4-month double-blind randomized placebo-controlled trial of 37 obese black adults found that those given vitamin D supplementation experienced a significant increase in telomerase activity, suggesting that vitamin D “may improve telomere maintenance and prevent cell senescence and counteract obesity-induced acceleration of cellular aging.”
Conclusion: This study followed and the tested the vitamin D levels of 13,331 adults for a period of 6-12 years. In a controlled analysis, those in the lowest vitamin D level quartile were found to have a 26% increased rate of all-cause mortality compared to those in the highest vitamin D level quartile. In the unadjusted analysis, the mortality risk was 78% higher.
Higher Serum Vitamin D Concentrations are Associated with Longer Leukocyte Telomere Length in Women (2007)
Conclusion: A study of 2,160 women found that those with higher vitamin D levels also had longer telomeres.
Photoprotection by 1,25 Dihydroxyvitamin D3 Is Associated with an Increase in p53 and a Decrease in Nitric Oxide Products (2007)
Conclusion: Vitamin D and UV exposure “induce high levels” of the anti-cancer, tumor-suppressing, DNA-repairing p53 protein.