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Appetite v.120, 2018년, pp.589 - 595   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Undervalued and ignored: Are humans poorly adapted to energy-dense foods?

Brunstrom, Jeffrey M. (Nutrition and Behaviour Unit, School of Experimental Psychology, University of Bristol, 12a Priory Road, Bristol, BS8 1TU, UK ) ; Drake, Alex C.L. (Nutrition and Behaviour Unit, School of Experimental Psychology, University of Bristol, 12a Priory Road, Bristol, BS8 1TU, UK ) ; Forde, Ciarán G. (Singapore Institute for Clinical Sciences, Brenner Centre for Molecular Medicine, 30 Medical Drive, 117609, Singapore ) ; Rogers, Peter J. (Nutrition and Behaviour Unit, School of Experimental Psychology, University of Bristol, 12a Priory Road, Bristol, BS8 1TU, UK ) ;
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    Abstract In many species the capacity to accurately differentiate the energy density (kcal/g) of foods is critical because it greatly improves efficiency in foraging. In modern humans this ability remains intact and is expressed in a selective preference for types of fruit and vegetables that contain more calories. However, humans evolved consuming these low energy-dense foods (typically N = 40) completed four tasks that assessed the ‘value’ of different sets of 22 foods that ranged in energy density (0.1 kcal/g–5.3 kcal/g and range 0.1 kcal/g to 6.2 kcal/g in Experiment 1 and 2, respectively). In Experiment 1 three measures (expected fullness, calorie estimation, and food choice), and in foods less than approximately 1.5 kcal/g (typically fruits and vegetables), the relationship between perceived value and energy density is linear. Above this, we observed clear compressive functions, indicating relative and progressive undervaluation of higher energy-dense foods. The fourth task (rated liking) failed to provide evidence for any relationship with energy density. In Experiment 2 the same pattern was replicated in measures of expected fullness, and in two different assessments of subjective calorie content. Consistent with the concept of ‘evolutionary discordance,’ this work indicates that modern human physiology is poorly adapted to evaluate foods that have a historically unusual (high) energy density. This has implications both for our understanding of how ‘modern’ energy-dense foods affect choice and energy intake, and for strategies aimed at removing calories from highly energy-rich foods.


  • 주제어

    Nutrition .   Obesity .   Diet .   Food .   Food choice .   Expected satiation .   Energy density.  

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