Qingzhou Liu

Jan 21, 2025 | nature.com | Qingzhou Liu |Margaret Allman-Farinelli |Anna M Rangan

AbstractThere are limited data on the amount of discretionary foods that people normally consume and consider as appropriate at one eating occasion. This study aimed to provide an overview of the range and assess differences of the ‘normal portion size’ and ‘perceived appropriate portion size’ of energy-dense nutrient-poor discretionary foods among consumers aged 18–65 years.

Oct 28, 2024 | mdpi.com | Qingzhou Liu |Margaret Allman-Farinelli |Anna M Rangan

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May 22, 2023 | nature.com | Qingzhou Liu

AbstractBackgroundPerceived portion size norms (typical perception of how much of a given food individuals choose to eat at a single occasion) may have shifted towards larger sizes due to the ubiquity of large serving sizes. However, there is a lack of validated tools to assess such norms for energy-dense and nutrient-poor discretionary foods. This study aimed to develop and validate an online tool to examine the perceived portion size norms of discretionary foods.