دورية أكاديمية
UK Food Standards Agency Workshop Report: An investigation of the relative contributions of diet and sunlight to vitamin D status
| العنوان: | UK Food Standards Agency Workshop Report: An investigation of the relative contributions of diet and sunlight to vitamin D status |
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| المؤلفون: | Ashwell, Margaret, Stone, Elaine M., Stolte, Heiko, Cashman, Kevin D., MacDonald, Helen, Lanham-New, Susan, Hiom, Sara, Webb, Ann, Fraser, David |
| المصدر: | Ashwell , M , Stone , E M , Stolte , H , Cashman , K D , MacDonald , H , Lanham-New , S , Hiom , S , Webb , A & Fraser , D 2010 , ' UK Food Standards Agency Workshop Report: An investigation of the relative contributions of diet and sunlight to vitamin D status ' , British Journal of Nutrition , vol. 104 , no. 4 , pp. 603-611 . https://doi.org/10.1017/S0007114510002138Test |
| سنة النشر: | 2010 |
| المجموعة: | The University of Manchester: Research Explorer - Publications |
| مصطلحات موضوعية: | 25-Hydroxy vitamin D, Bone health, Diet, Dietary reference values, Skin cancer, Sunlight, UVA, UVB, Vitamin D intake and status |
| الوصف: | The UK Food Standards Agency (FSA) convened an international group of scientific experts to review three Agency-funded projects commissioned to provide evidence for the relative contributions of two sources, dietary vitamin D intake and skin exposure to UVB rays from sunlight, to vitamin D status. This review and other emerging evidence are intended to inform any future risk assessment undertaken by the Scientific Advisory Committee on Nutrition. Evidence was presented from randomised controlled trials to quantify the amount of vitamin D required to maintain a serum 25-hydroxy vitamin D (25OHD) concentration >25nmol/l, a threshold that is regarded internationally as defining the risk of rickets and osteomalacia. Longitudinal evidence was also provided on summer sunlight exposure required to maintain 25OHD levels above this threshold in people living in the British Isles (latitude 51°-57°N). Data obtained from multi-level modelling of these longitudinal datasets showed that UVB exposure (i.e. season) was the major contributor to changes in 25OHD levels; this was a consistent finding in two Caucasian groups in the north and south of the UK, but was less apparent in the one group of British women of South Asian origin living in the south of the UK. The FSA-funded research suggested that the typical daily intake of vitamin D from food contributed less than UVB exposure to average year-round 25OHD levels in both Caucasian and Asian women. The low vitamin D status of Asian women has been acknowledged for some time, but the limited seasonal variation in Asian women is a novel finding. The Workshop also considered the dilemma of balancing the risks of vitamin D deficiency (from lack of skin exposure to sunlight in summer) and skin cancer (from excessive exposure to sunlight with concomitant sunburn and erythema). Cancer Research UK advises that individuals should stay below their personal sunburn threshold to minimise their skin cancer risk. The evidence suggests that vitamin D can be produced in summer at the ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.1017/S0007114510002138 |
| الإتاحة: | https://doi.org/10.1017/S0007114510002138Test https://research.manchester.ac.uk/en/publications/477881aa-1838-4774-ae42-d5a895796508Test |
| حقوق: | info:eu-repo/semantics/closedAccess |
| رقم الانضمام: | edsbas.736DF54C |
| قاعدة البيانات: | BASE |
| DOI: | 10.1017/S0007114510002138 |
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