caa a22 4500 388097132 CHVBK 20180307125306.0 cr unu---uuuuu 161130e199905 xx s 000 0 eng 10.1017/S0029665199000579 doi S0029665199000579 pii (NATIONALLICENCE)cambridge-10.1017/S0029665199000579 Powers Hilary J. Division of Child Health, University of Sheffield, Sheffield Children's Hospital, Western Bank, Sheffield S10 2TH, UK Current knowledge concerning optimum nutritional status of riboflavin, niacin and pyridoxine [Elektronische Daten] [Hilary J. Powers] The term ‘optimum nutrition' has evolved from a perceived need to base recommendations for nutrient intakes firmly in the context of function. It follows that ‘optimum nutritional status' for individual nutrients should be defined in terms of biochemical or physiological markers having some functional value but also showing an appropriate relationship to nutrient intake. The present short review considers the current position regarding such markers for riboflavin, pyridoxine and niacin. It is concluded that whilst there are several biochemical measures which respond to changes in intake of each of these vitamins, no single measure is wholly satisfactory as a marker of optimum status. Copyright © The Nutrition Society 1999 Riboflavin status nationallicence Niacin status nationallicence Pyridoxine status nationallicence Markers of nutrient status nationallicence Proceedings of the Nutrition Society Cambridge University Press 58/2(1999-05), 435-440 0029-6651 58:2<435 1999 58 PNS https://doi.org/10.1017/S0029665199000579 text/html Onlinezugriff via DOI 1 conference jats NATIONALLICENCE 856 40 https://doi.org/10.1017/S0029665199000579 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Powers Hilary J. Division of Child Health, University of Sheffield, Sheffield Children's Hospital, Western Bank, Sheffield S10 2TH, UK NATIONALLICENCE 773 0- Proceedings of the Nutrition Society Cambridge University Press 58/2(1999-05), 435-440 0029-6651 58:2<435 1999 58 PNS CC0 http://creativecommons.org/publicdomain/zero/1.0 nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-cambridge