Implicit satiety goals and food-related expectations predict portion size in older adults: Findings from the BAMMBE cohort

• Published in: Appetite 2023-01, Vol.180, p.106361-106361, Article 106361
• Main Authors: Pink, Aimee E., Lee, Li Ling, Low, Dorrain Yanwen, Yang, Yifan, Fong, LaiGuan Zoey, Kang, Alicia Yi Hui, Liu, Peijia, Kim, Hyejin, Wang, Yulan, Padmanabhan, Parasuraman, Cobiac, Lynne, Gulyás, Balázs, Pettersson, Sven, Cheon, Bobby K.
• Format: Article
• Language: English
• Subjects: Aged; Aged, 80 and over; Anorexia of ageing; Appetite; Exercise; Expected satiety; Humans; Middle Aged; Surveys and Questionnaires
• ISSN: 0195-6663; 1095-8304
• DOI: 10.1016/j.appet.2022.106361

Portion size selection is an indicator of appetite and within younger adults, is predicted by factors such as expected satiety, liking and motivations to achieve an ideal sensation of fullness (i.e., implicit satiety goals). Currently, there is limited research available on the determinants of portion size selection within older adults. Therefore, the current study aimed to examine the relationship between individual differences in implicit satiety goals, food-related expectations, and portion size selection in older adults. Free-living older adult Singaporeans (N = 115; Nmales = 62; age: M = 66.21 years, SD = 4.78, range = 60–83 years) participated as part of the Brain, Ageing, Microbiome, Muscle, Bone, and Exercise Study (BAMMBE). Participants completed questionnaires on their subjective requirements for experiencing different states of satiety and food-related expectations (i.e., liking, how filling) as well as a computerised portion size selection task. Using a multiple regression, we found that goals to feel comfortably full (B = 3.08, SE = 1.04, t = 2.96, p = .004) and to stop hunger (B = −2.25, SE = 0.82, t = −2.75, p = .007) significantly predicted larger portion size selection (R2 = 0.24, F(4,87) = 6.74, p