References

• Dietary Reference Intakes for Calcium, Phosphorus, Magnesium, Vitamin D, and Fluoride (1997) National Academy of Sciences. Institute of Medicine. Food and Nutrition Board.
   
• Dietary Reference Intakes for Thiamin, Riboflavin, Niacin, Vitamin B6, Folate, Vitamin B12, Pantothenic Acid, Biotin, and Choline (1998) National Academy of Sciences. Institute of Medicine. Food and Nutrition Board.
   
• Dietary Reference Intakes for Vitamin C, Vitamin E, Selenium, and Carotenoids (2000) National Academy of Sciences. Institute of Medicine. Food and Nutrition Board.
   
• Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc (2001) National Academy of Sciences. Institute of Medicine. Food and Nutrition Board.
   
• http://riley.nal.usda.gov/nal_display/index.php?
  info_center=4&tax_level=3&tax_subject=256&topic_id=1342&level3_id=5141
   
• The Linus Pauling Institute, Micronutrient Information Center.
  http://lpi.oregonstate.edu
   
• Hidgon, J. An evidence-based approach to vitamins and minerals. Health benefits and intake recommendations. Thieme, 2003.
   
• Bowman, BA, Russell, RB (eds.) Present Knowledge in Nutrition, 8th edition ILSI Press Washingtion, DC; 2001.
   
• Expert Group on Vitamins and Minerals. Safe upper levels for vitamins and minerals, Food Standards Agency, United Kingdom, 2003.
  http://www.foodstandards.gov.uk/multimedia/pdfs/vitmin2003.pdf
   
• D-A-CH (2000) Deutsche Gesellschaft für Ernährung (DGE), Österreichische Gesellschaft für Ernährung (ÖGE), Schweizerische Gesellschaft für Ernährung (SGE), Schweizerische Vereinigung für Ernährung (SVE): Referenzwerte für die Nährstoffzufuhr. 1. Aufl., Umschau Braus, Frankfurt/Main.
   
• Souci Fachmann Kraut, Food Composition and Nutrition Tables, 6th ed, CRC Press, Boca Raton, 2000.
  http://www.sfk-online.net 
   
• Vitamin and mineral requirements in human nutrition. 2nd ed. World Health Organization and Food and Agriculture Organization of the United Nations, 2004.
   
• Brody T. Nutritional Biochemistry. 2nd ed. San Diego: Academic Press; 1999.
   
• Opinions of the Scientific Committee on Food on the Tolerable Upper Intake Levels of vitamins and minerals
  http://europa.eu.int/comm/food/fs/sc/scf/index_en.html