Dietary Assessment Portion Size

1 stand alone psees that were used individually as part of the dietary assessment method for example a list of portion size options as part of a semi quantitative food frequency questionnaire and a set of measuring spoons as part of a 24 h recall.

Dietary assessment portion size. Portion size may be defined based on different purposes such as for dietary assessment or therapeutic advice or food labelling resulting in a variety of measurement methods and specifications. Accurate estimates of energy and nutrient intake of individuals and populations are contingent on the reliability of information obtained about food intake food composition and portion size. Portion sizes for certain foods have been increasing dramatically in recent years alongside obesity rates concurring with the phenomenon of the portion size effect more is consumed when more is offered. This article reviews issues related to the definition determination and use of portion sizes in dietary assessment and public education.

However when adequate data on commonly consumed foods and portion sizes are not available to design these tools alternative data sources are needed. Portion sizes in dietary assessment. Semi quantitative dietary assessment methods are frequently used in low income countries and the use of photographic series for portion size estimation is gaining popularity. The work to develop the age appropriate portion size assessment tools for use in children was funded by the food standards agency project number n08019.

Accurate estimates of energy and nutrient intake of individuals and populations are contingent on the reliability of information obtained about food intake food. In this study portion size data based on pseas used in dietary recalls for estimating amounts eaten were useful for measuring dietary intake for population based studies. 1 department of nutrition and food studies new york university ny 10012 1172 usa. Young lr 1 nestle ms.

Issues and policy implications. 2 related set psees used in. Portion size may be defined based on different purposes such as for dietary assessment or therapeutic advice or food labelling resulting in a variety of measurement methods and specifications. Individual respondent data however may be inaccurate and should be supplemented with additional information to improve assessment of individual nutritional.