TY - JOUR
T1 - A goal-systems perspective on plant-based eating
T2 - Keys to successful adherence in university students
AU - Vizcaino, Maricarmen
AU - Ruehlman, Linda S.
AU - Karoly, Paul
AU - Shilling, Katy
AU - Berardy, Andrew
AU - Lines, Sidney
AU - Wharton, Christopher M.
N1 - Publisher Copyright:
© 2020 The Author(s). Published by Cambridge University Press.
PY - 2021/1
Y1 - 2021/1
N2 - Objective: To explore adherence to a plant-based diet from the perspective of goals- and motivations-based systems. Design: A cross-sectional, survey-based study was conducted regarding eating patterns, goals and motivations for current eating habits. Setting: Data were collected using an online survey platform, including the Goal Systems Assessment Battery (GSAB) and other survey tools. Participants: University students were recruited, including thirty-three students reporting successful maintenance of a plant-based diet (Adherents) and sixty-three students trying to adhere to a plant-based diet (Non-adherents). Results: Using GSAB subscale scores, discriminant function analyses significantly differentiated adherents v. non-adherents, accounting for 49·0 % of between-group variance (χ2 (13) = 42·03, P < 0·000). It correctly classified 72·7 % of adherents and 88·9 % of non-adherents. Constructs including value, self-efficacy, planning/stimulus control and positive affect were significant and included in the discriminant function. Logistic regression results suggested that participants who successfully adhered to a plant-based diet were seventeen times more likely to report 'To manage or treat a medical condition' as motivation and almost seven times more likely to report 'To align with my ethical beliefs' as motivation compared with non-adherents. However, these participants were 94 % less likely to report 'To maintain and/or improve my health' as motivation compared with non-adherents. Controlling for motivations, hierarchical logistic regression showed that only planning as part of the GSAB self-regulatory system predicted adherence to a plant-based diet. Conclusions: Values-based approaches to plant-based diets, including consideration for ethical beliefs, self-efficacy and proper planning, may be key for successful maintenance of this diet long-term.
AB - Objective: To explore adherence to a plant-based diet from the perspective of goals- and motivations-based systems. Design: A cross-sectional, survey-based study was conducted regarding eating patterns, goals and motivations for current eating habits. Setting: Data were collected using an online survey platform, including the Goal Systems Assessment Battery (GSAB) and other survey tools. Participants: University students were recruited, including thirty-three students reporting successful maintenance of a plant-based diet (Adherents) and sixty-three students trying to adhere to a plant-based diet (Non-adherents). Results: Using GSAB subscale scores, discriminant function analyses significantly differentiated adherents v. non-adherents, accounting for 49·0 % of between-group variance (χ2 (13) = 42·03, P < 0·000). It correctly classified 72·7 % of adherents and 88·9 % of non-adherents. Constructs including value, self-efficacy, planning/stimulus control and positive affect were significant and included in the discriminant function. Logistic regression results suggested that participants who successfully adhered to a plant-based diet were seventeen times more likely to report 'To manage or treat a medical condition' as motivation and almost seven times more likely to report 'To align with my ethical beliefs' as motivation compared with non-adherents. However, these participants were 94 % less likely to report 'To maintain and/or improve my health' as motivation compared with non-adherents. Controlling for motivations, hierarchical logistic regression showed that only planning as part of the GSAB self-regulatory system predicted adherence to a plant-based diet. Conclusions: Values-based approaches to plant-based diets, including consideration for ethical beliefs, self-efficacy and proper planning, may be key for successful maintenance of this diet long-term.
KW - Goals
KW - Goals system assessment battery
KW - Motivations
KW - Pescatarianism
KW - Plant-based diets
KW - Veganism
KW - Vegetarianism
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U2 - 10.1017/S1368980020000695
DO - 10.1017/S1368980020000695
M3 - Article
C2 - 32515718
AN - SCOPUS:85086727891
SN - 1368-9800
VL - 24
SP - 75
EP - 83
JO - Public Health Nutrition
JF - Public Health Nutrition
IS - 1
ER -