A randomized trial, published in the British Journal of Dermatology, compared full-body narrowband UVB (NB-UVB) exposure three times per week against 1,600 IU of oral vitamin D3 daily over six weeks in vitamin D–deficient adults. UVB phototherapy was significantly more effective at raising vitamin D levels than oral supplementation. The UVB group saw a mean increase of roughly 22.3 ng/mL, compared to about 15 ng/mL in the supplement group.
Wellness & Longevity
Narrowband ultraviolet B three times per week is more effective in treating vitamin D deficiency than 1600 IU oral vitamin D₃ per day: a randomized clinical trial
British Journal of Dermatology
Related Studies
Wellness & Longevity
Vitamin D3 and marine ω-3 fatty acids supplementation and leukocyte telomere length: 4-year findings from the VITamin D and OmegA-3 TriaL (VITAL) randomized controlled trial
The American Journal of Clinical Nutrition
Analysis of data from the VITAL trial found that 4-years of supplementation with 2000 IU/day vitamin D3 reduced telomere attrition by 140 bp, suggesting that vitamin D3 daily supplementation might have a role in counteracting telomere erosion or cell senescence.
Wellness & Longevity
Vitamin D3 and marine ω-3 fatty acids supplementation and leukocyte telomere length: 4-year findings from the VITamin D and OmegA-3 TriaL (VITAL) randomized controlled trial
The American Journal of Clinical Nutrition
Analysis of data from the VITAL trial found that 4-years of supplementation with 2000 IU/day vitamin D3 reduced telomere attrition by 140 bp, suggesting that vitamin D3 daily supplementation might have a role in counteracting telomere erosion or cell senescence.
Wellness & Longevity
Gut-vitamin D interplay: key to mitigating immunosenescence and promoting healthy ageing
Immunity & Ageing
This review article discusses the gut microbiota and vitamin D as an emerging and vital axis influencing immune aging and age-related diseases. It highlights the dual role of gut microbiota in shaping host immunity and regulating vitamin D metabolism, alongside the significant immunomodulatory potential of vitamin D in maintaining intestinal homeostasis and barrier integrity. The findings suggest that vitamin D deficiency and gut dysbiosis accelerate immunosenescence and inflammageing, contributing to unhealthy aging and increased risk of age-related diseases.
Wellness & Longevity
Gut-vitamin D interplay: key to mitigating immunosenescence and promoting healthy ageing
Immunity & Ageing
This review article discusses the gut microbiota and vitamin D as an emerging and vital axis influencing immune aging and age-related diseases. It highlights the dual role of gut microbiota in shaping host immunity and regulating vitamin D metabolism, alongside the significant immunomodulatory potential of vitamin D in maintaining intestinal homeostasis and barrier integrity. The findings suggest that vitamin D deficiency and gut dysbiosis accelerate immunosenescence and inflammageing, contributing to unhealthy aging and increased risk of age-related diseases.
Wellness & Longevity
Avoidance of sun exposure is a risk factor for all-cause mortality: results from the Melanoma in Southern Sweden cohort
Journal of Internal Medicine
This analysis of data from almost 30,000 women from the Melanoma in Southern Sweden (MISS) cohort found that nonsmokers who avoided sun exposure had a life expectancy similar to smokers in the highest sun exposure group, indicating that avoidance of sun exposure is a risk factor for death of a similar magnitude as smoking. Moreover, compared to women with the highest sun exposure, life expectancy for women who avoided the sun was shorter by up to 2.1 years.
Wellness & Longevity
Avoidance of sun exposure is a risk factor for all-cause mortality: results from the Melanoma in Southern Sweden cohort
Journal of Internal Medicine
This analysis of data from almost 30,000 women from the Melanoma in Southern Sweden (MISS) cohort found that nonsmokers who avoided sun exposure had a life expectancy similar to smokers in the highest sun exposure group, indicating that avoidance of sun exposure is a risk factor for death of a similar magnitude as smoking. Moreover, compared to women with the highest sun exposure, life expectancy for women who avoided the sun was shorter by up to 2.1 years.