PURPOSE: Up-to-date knowledge about vitamin D supply and serum concentration in Germany is not sufficient. Our purpose was to compare a novel holistic bottom-up modeling of 25(OH)D concentrations with vitamin D sources such as sunlight, food and supplements for all federal states taking seasonal and geographical variations into account. The second purpose was to update and detail vitamin D supply through food in Germany. METHODS: To confirm the model of 25(OH)D concentrations, we used the population (1,763 men and 2,267 women, 18-79 years) participated in the representative German National Health Interview and Examination Survey 1998 and the integrated German Nutrition Survey. RESULTS: The maximum model value is 67.5 nmol/L in July and minimum model value is 29.3 nmol/L in January, while the average model value is 45.0 nmol/L. Men have a mean daily intake of 137 IU (3.42 μg) and women of 112 IU (2.79 μg). Correlation between model and actual data is 0.77 (p = 0.003). CONCLUSIONS: A comparison of the model data with population-based values showed good agreement. None of the vitamin D sources can provide the German population with enough vitamin D.
PURPOSE: Up-to-date knowledge about vitamin D supply and serum concentration in Germany is not sufficient. Our purpose was to compare a novel holistic bottom-up modeling of 25(OH)D concentrations with vitamin D sources such as sunlight, food and supplements for all federal states taking seasonal and geographical variations into account. The second purpose was to update and detail vitamin D supply through food in Germany. METHODS: To confirm the model of 25(OH)D concentrations, we used the population (1,763 men and 2,267 women, 18-79 years) participated in the representative German National Health Interview and Examination Survey 1998 and the integrated German Nutrition Survey. RESULTS: The maximum model value is 67.5 nmol/L in July and minimum model value is 29.3 nmol/L in January, while the average model value is 45.0 nmol/L. Men have a mean daily intake of 137 IU (3.42 μg) and women of 112 IU (2.79 μg). Correlation between model and actual data is 0.77 (p = 0.003). CONCLUSIONS: A comparison of the model data with population-based values showed good agreement. None of the vitamin D sources can provide the German population with enough vitamin D.
Authors: Anastassios G Pittas; Bess Dawson-Hughes; Tricia Li; Rob M Van Dam; Walter C Willett; Joann E Manson; Frank B Hu Journal: Diabetes Care Date: 2006-03 Impact factor: 19.112
Authors: Matthias Priemel; Christoph von Domarus; Till Orla Klatte; Steffen Kessler; Julia Schlie; Simon Meier; Nils Proksch; Frederic Pastor; Clemens Netter; Thomas Streichert; Klaus Püschel; Michael Amling Journal: J Bone Miner Res Date: 2010-02 Impact factor: 6.741
Authors: Kevin D Cashman; Ellen Ghm van den Heuvel; Ruud Jw Schoemaker; Damien P Prévéraud; Helen M Macdonald; Jayashree Arcot Journal: Adv Nutr Date: 2017-11-15 Impact factor: 8.701
Authors: Philippe Vuistiner; Valentin Rousson; Hugues Henry; Pierre Lescuyer; Olivier Boulat; Jean-Michel Gaspoz; Vincent Mooser; Peter Vollenweider; Gerard Waeber; Jacques Cornuz; Fred Paccaud; Murielle Bochud; Idris Guessous Journal: Biomed Res Int Date: 2015-09-01 Impact factor: 3.411