Scientific Publications
Dietary sulphur intake estimation using 24 hour intake diaries compared with duplicate diets
Food Chemistry
Recommended daily intake values for sulphur only consider the two sulphur containing amino acids (SAA), overlooking contributions from other compounds. The aim of this study was to investigate the accuracy of sulphur intake estimations using a food intake diary method and to assess the relative contributions of SAA to the total sulphur content of a range of foods. A database of the sulphur content of over 1200 commonly consumed foods was developed. The sulphur intake estimation from 24 hour diet diaries was compared with the analysed content of duplicate diets. The analysis of the sulphur content in commonly consumed foods showed that non-SAA ranges from 3.2-89.5%. Daily intake estimation validity for other minerals were also analysed and showed good agreement, except for sodium and zinc. This study shows there is no requirement for mass re-analysis of the sulphur content of foods however caution is advised when estimating some other minerals.
Food Chemistry
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