Calculated Ultraviolet Exposure Levels for a Healthy Vitamin D Status

@inproceedings{Webb2006CalculatedUE,
  title={Calculated Ultraviolet Exposure Levels for a Healthy Vitamin D Status},
  author={Ann R. Webb and Ola Engelsen},
  booktitle={Photochemistry and photobiology},
  year={2006}
}
Abstract The dangers of overexposure to sunlight have been well publicized, but less attention has been given to an acknowledged benefit of exposure to UV radiation; that being the cutaneous synthesis of vitamin D3. Here we define a standard vitamin D dose on the basis of recently recommended requirements for vitamin D that take account of its risk reduction role in a variety of diseases, and present a web-based tool that enables the reader to calculate associated exposure times for any time… 
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313 Citations
Highly Influential Citations
18
Background Citations
132
Methods Citations
14
Results Citations
3

313 Citations

Ultraviolet exposure scenarios: risks of erythema from recommendations on cutaneous vitamin D synthesis.
TLDR
The model results show that the current recommended daily intake of 400 IU is readily achievable through casual sun exposure in the midday lunch hour, with no risk of erythema, and at the higher proposed vitamin D dose of 1000 IU lunchtime sun exposure is still a viable route to the vitamin, but requires the commitment to expose greater areas of skin.
Ultraviolet Exposure Scenarios: Balancing Risks of Erythema and Benefits of Cutaneous Vitamin D Synthesis.
TLDR
The model results show that a recommended daily intake of 400 IU is readily achievable through casual sun exposure in the midday lunch hour, with no risk of erythema, for all latitudes some of the year, and for all the year at some (low) latitudes.
Ultraviolet Exposure Scenarios
TLDR
The model results show that the current recommended daily intake of 400 IU is readily achievable through casual sun exposure in the midday lunch hour, with no risk of erythema, and the higher proposed vitamin D dose of 1000 IU lunchtime sun exposure is still a viable route to the vitamin, but requires the commitment to expose greater areas of skin, or is effective for a shorter period of the year.
Meeting Vitamin D Requirements in White Caucasians at UK Latitudes: Providing a Choice
TLDR
The sun exposure required to meet vitamin D targets year-round is quantified and whether this can be safely achieved in a simply defined manner in the UK as an alternative to increasing vitamin D oral intake is determined.
Contributions of Sunlight and Diet to Vitamin D Status
TLDR
Although oral vitamin D is potentially toxic with high-dose supplements, there is a wide safety margin and long-term safety data covering a range of potential adverse outcomes are limited.
The Vitamin D Debate: Translating Controlled Experiments into Reality for Human Sun Exposure Times
TLDR
Results from both model and experimental data show that relatively short exposures of a modest amount of unprotected skin to summer sunlight in northern climes, on a regular basis during lunchtime hours, increases vitamin D to sufficiency status in the white Caucasian population.
Determining an Effective UV Radiation Exposure Time for Vitamin D Synthesis in the Skin Without Risk to Health: Simplified Estimations from UV Observations
TLDR
The relationship between erythemally weighted UV, as well as UV that synthesizes vitamin D3, was determined by numerical simulation of atmospheric parameters, such as total ozone, using a simplified “SMART2” model for radiative transfer.
Recommended summer sunlight exposure amounts fail to produce sufficient vitamin D status in UK adults of South Asian origin.
TLDR
Sunlight-exposure recommendations are inappropriate for individuals of South Asian ethnicity who live at the UK latitude, and more guidance is required to meet the vitamin D requirements of this sector of the population.
Estimated equivalency of vitamin D production from natural sun exposure versus oral vitamin D supplementation across seasons at two US latitudes.
Minimum Exposure Limits and Measured Relationships Between the Vitamin D, Erythema and International Commission on Non‐Ionizing Radiation Protection Solar Ultraviolet
TLDR
The results show that the horizontal plane ICNIRP ultraviolet exposure may be used under these conditions to provide minimum guidelines for the healthy moderation of vitamin D, scalable to each of the six Fitzpatrick skin types.
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