1. The Sun Exposure and Vitamin D Supplementation (SEDS) study Dr Sam Hoare National Centre for Epidemiology and Population Health

2. Vitamin D 2 90% from sunlight 1 Bone health 2,3 ?CVD 4,5,6 /MS 7 /Cancer 4,5,8 /Diabetes 9..... Management of mild vitamin D deficiency?? (1) Holick MF. Vitamin D: a millennium perspective. J Cell Biochem; 2003 (2) Gibson RS, Principles of Nutritional Assessment; 2005 (3) Reid, I et al. Effects of vitamin D supplements on bone mineral density: a systematic review and meta-analysis. The Lancet; 2014 (4) Chowdhury, R et al. Vitamin D and risk of cause specific death: systematic review and meta-analysis of observational cohort and randomised intervention studies. BMJ; 2014 (5) Autier, P et al. Vitamin D status and ill health: a systematic review. The Lancet Diabetes & Endocrinology; 2014 (6) Rostand SG. Ultraviolet light may contribute to geographic and racial blood pressure differences. Hypertension; 1997 (7) Lucas R et al. Sun exposure and vitamin D are independent risk factors for CNS demyelination. Neurology; 2011 (8) Gandini S, et al. Meta-analysis of observational studies of serum 25-hydroxyvitamin D levels and colorectal, breast and prostate cancer and colorectal adenoma. Int J Cancer; 2011 (9) Pittas, AG et al. The role of vitamin D and calcium in type 2 diabetes. A systematic review and meta-analysis. Journal of Clinical Endocrinology & Metabolism; 2007

3. Vitamin D deficiency in Australia “Around four million Australian adults……. just under one in every four…. were Vitamin D deficient in 2011–12” (Australian Bureau of Statistics - 15 th April 2014 www.abs.gov.au/australianhealthsurvey) www.abs.gov.au/australianhealthsurvey (Vitamin D deficiency < 50 nmol/L) 3

4. Seasonal and regional variation in Vitamin D deficiency 4 Summer 2011/12 Winter 2011/12

5. The SEDS Study Are there non-vitamin D benefits of sun exposure? Is it possible to increase your vitamin D through safe sun exposure? 5

6. 6 The SEDS study Australia-wide randomized controlled trial Currently recruiting Participants aged 18-64 yrs AND 25(OH)D 40-60nmol/L AND not taking Vit D supplements 1 year intervention

7. How you can refer a patient (it’s very easy!) Recruitment through General Practice www.sedsstudy.org info@sedsstudy.org Tel – 1800 73 2223 Fax – 02 6125 5614 Self-referral – via website, phone or email 7

8. Thank you!! 8