(EN) N/D= "Amount not determinable due to lack of data of adverse effects. Source of intake should be from food only to prevent high levels of intake" (see Dietary Reference Intakes: VitaminsArchiviato il 2 ottobre 2011 in Internet Archive.. The National Academies, 2001).
(EN) Plain type indicates Adequate Intakes (A/I). "The AI is believed to cover the needs of all individuals, but a lack of data prevent being able to specify with confidence the percentage of individuals covered by this intake" (see Dietary Reference Intakes: VitaminsArchiviato il 2 ottobre 2011 in Internet Archive.. The National Academies, 2001).
(EN) N/D= "Amount not determinable due to lack of data of adverse effects. Source of intake should be from food only to prevent high levels of intake" (see Dietary Reference Intakes: VitaminsArchiviato il 2 ottobre 2011 in Internet Archive.. The National Academies, 2001).
(EN) Plain type indicates Adequate Intakes (A/I). "The AI is believed to cover the needs of all individuals, but a lack of data prevent being able to specify with confidence the percentage of individuals covered by this intake" (see Dietary Reference Intakes: VitaminsArchiviato il 2 ottobre 2011 in Internet Archive.. The National Academies, 2001).
(EN) L. Bellows, R. Moore, Water-Soluble Vitamins, su Colorado State University. URL consultato il 7 dicembre 2008 (archiviato dall'url originale il 25 settembre 2015).
(EN) Anthea Maton, Jean Hopkins, Charles William McLaughlin, Susan Johnson, Maryanna Quon Warner, David LaHart, Jill D. Wright, Human Biology and Health, Englewood Cliffs (New Jersey), Prentice Hall, 1993, ISBN0-13-981176-1, OCLC32308337.