Gunnarsson, O, Indridason, OS, Franzson, L, et al. (2004) Vitamin-D homeostasis amongst adult Icelandic population. Icelandic Med J
Public Health Institute of Iceland (2006) Recommendation on Diet and Nutrients for Adults and Children from the Age of Two. Reykjavik: Public Health Institute.
Forsmo, S, Fjeldbo, SK & Langhammer, A (2008) Childhood cod liver oil consumption and bone mineral density in a population-based cohort of peri- and postmenopausal women: the Nord-Trondelag Health Study. Am J Epidemiol
Sigurdsson, G, Franzson, L, Steingrimsdottir, L, et al. (2000) The association between parathyroid hormone, vitamin D and bone mineral density in 70-year-old Icelandic women. Osteoporos Int
Macdonald, HM, Mavroeidi, A, Barr, RJ, et al. (2008) Vitamin D status in postmenopausal women living at higher latitudes in the UK in relation to bone health, overweight, sunlight exposure and dietary vitamin D. Bone
Barker, ME, McCloskey, F, Saha, S, et al. (2005) Serum retinoids and beta-carotene as predictors of hip and other fractures in elderly women. J Bone Miner Res
Olafsdottir, E (2012) .
Harris, TB, Launer, LJ, Eiriksdottir, G, et al. (2007) Age, Gene/Environment Susceptibility–Reykjavik Study: multidisciplinary applied phenomics. Am J Epidemiol
Jonsdottir, LS, Sigfusson, N, Sigvaldason, H, et al. (1998) Incidence and prevalence of recognized and unrecognized myocardial infarction in women. The Reykjavik Study. Eur Heart J
Sigurdsson, E, Thorgeirsson, G, Sigvaldason, H, et al. (1993) Prevalence of coronary heart disease in Icelandic men 1968–1986. The Reykjavik Study. Eur Heart J
Sigurdsson, S, Aspelund, T, Forsberg, L, et al. (2012) Brain tissue volumes in the general population of the elderly: the AGES–Reykjavik Study. Neuroimage
Sigurdsson, G, Aspelund, T, Chang, M, et al. (2006) Increasing sex difference in bone strength in old age: the Age Gene/Environment Susceptibility-Reykjavik Study (AGES–REYKJAVIK). Bone
Steingrimsdottir, L, Thorsgeirsdottir, H & Aegisdottir, S (1991) The Diet of Icelanders 1990. I. Main Findings. Reykjavik: Icelandic Nutrition Council.
Eysteinsdottir, T, Gunnarsdottir, I, Thorsdottir, I, et al. (2011) Validity of retrospective diet history: assessing recall of midlife diet using Food Frequency Questionnaire in later life. JNHA
Eysteinsdottir, T, Gunnarsdottir, I, Thorsdottir, I, et al. (2012) Assessing validity of a short food frequency questionnaire on present dietary intake of elderly Icelanders. Nutr J
Institute of Medicine (2011) Dietary Reference Intakes for Calcium and Vitamin D. Washington, DC: The National Academies Press.
Viljakainen, HT, Natri, AM, Kärkkäinen, M, et al. (2006) A positive dose–response effect of vitamin D supplementation on site-specific bone mineral augmentation in adolescent girls: a double-blinded randomized placebo-controlled 1-year intervention. J Bone Miner Res
Mølgaard, C, Larnkjaer, A, Cashman, KD, et al. (2010) Does vitamin D supplementation of healthy Danish Caucasian girls affect bone turnover and bone mineralization?
Winzenberg, TM, Powell, S, Shaw, KA, et al. (2010) .
Steingrimsdottir, L, Thorsgeirsdottir, H & Olafsdottir, AS (2003) The Diet of Icelanders, Dietary Survey of the Icelandic Nutrition Council 2002, Main Findings. Reykjavik: Icelandic Nutrition Council.
Thorgeirsdottir, H, Valgeirsdottir, H, Gunnarsdottir, I, et al. (2011) The Diet of Icelanders 2010–1011. Main Findings. Reykjavik: Directorate of Health.
Gunnarsdottir, I, Gustavsdottir, AG, Steingrimsdottir, L, et al. (2013) Iodine status of pregnant women in population changing from high to lower fish and milk consumption. Public Health Nutr
Eysteinsdottir, T, Halldorsson, TI, Thorsdottir, I, et al. (2014) Milk consumption throughout life and bone mineral content and density in elderly men and women. Osteoporos Int
Melhus, H, Michaelsson, K, Kindmark, A, et al. (1998) Excessive dietary intake of vitamin A is associated with reduced bone mineral density and increased risk for hip fracture. Ann Intern Med
Binkley, N & Krueger, D (2000) Hypervitaminosis A and bone. Nutr Rev
Michaëlsson, K, Lithell, H, Vessby, B, et al. (2003) Serum retinol levels and the risk of fracture. N Engl J Med
Feskanich, D, Singh, V, Willett, WC, et al. (2002) Vitamin A intake and hip fractures among postmenopausal women. JAMA
Opotowsky, AR & Bilezikian, JP (2004) NHANES I follow-up study. Serum vitamin A concentration and the risk of hip fracture among women 50 to 74 years old in the United States: a prospective analysis of the NHANES I follow-up study. Am J Med
Ooms, ME, Roos, JC, Bezemer, PD, et al. (1995) Prevention of bone loss by vitamin D supplementation in elderly women: a randomized double-blind trial. J Clin Endocrinol Metab
Nakamura, K & Iki, M (2006) Efficacy of optimization of vitamin D in preventing osteoporosis and osteoporotic fractures: a systematic review. Environ Health Prev Med
Dawson-Hughes, B, Harris, SS, Krall, EA, et al. (1995) Rates of bone loss in postmenopausal women randomly assigned to one of two dosages of vitamin D. Am J Clin Nutr
Dawson-Hughes, B, Harris, SS, Krall, EA, et al. (1997) Effect of calcium and vitamin D supplementation on bone density in men and women 65 years of age or older. N Engl J Med
Bischoff-Ferrari, HA, Willett, WC, Wong, JB, et al. (2005) Fracture prevention with vitamin D supplementation: a meta-analysis of randomized controlled trials. JAMA
Trivedi, DP, Doll, R & Khaw, KT (2003) Effect of four monthly oral vitamin D3 (cholecalciferol) supplementation on fractures and mortality in men and women living in the community: randomised double blind controlled trial. BMJ
Reid, IR, Bolland, MJ & Grey, A (2014) Effects of vitamin D supplements on bone mineral density: a systematic review and meta-analysis. Lancet
Avenell, A, Mak, JC & O'Connell, D (2014) .
Sigurdsson, G, Franzson, L, Thorgeirsdottir, H, et al. (2001) A lack of association between excessive dietary intake of vitamin A and bone mineral density in seventy-year-old Icelandic women. In Nutritional Aspects of Osteoporosis, pp. 295–302 [Burckhardt, P, Dawson-Hughes, B and Heaney, RP, editors]. San Diego, CA: Academic Press.
Marshall, D, Johnell, O & Wedel, H (1996) Meta-analysis of how well measures of bone mineral density predict occurrence of osteoporotic fractures. BMJ
Cummings, SR, Black, DM, Nevitt, MC, et al. (1993) Bone density at various sites for prediction of hip fractures. The Study of Osteoporotic Fractures Research Group. Lancet
Sigurdsson, G, Franzson, L, Thorgeirsdottir, H, et al. (1999) Vitamin D intake and serum 25-OH-vitamin D concentration in different age groups of Icelandic women. Icelandic Med J
Steingrimsdottir, L, Gunnarsson, O, Indridason, OS, et al. (2005) Relationship between serum parathyroid hormone levels, vitamin D sufficiency, and calcium intake. JAMA
Steingrimsdottir, L, Halldorsson, TH, Siggeirsdottir, K, et al. (2014) Hip fractures and bone mineral density in the elderly – importance of serum 25-hydroxyvitamin D. PLOS ONE
Dwyer, JT & Coleman, KA (1997) Insights into dietary recall from a longitudinal study: accuracy over four decades. Am J Clin Nutr
Cashman, KD, Fitzgerald, AP, Kiely, M, et al. (2011) A systematic review and meta-regression analysis of the vitamin D intake-serum 25-hydroxyvitamin D relationship to inform European recommendations. Br J Nutr