Objective: The theory of planned behaviour (TPB) has been criticized for not including interactions between major constructs thought to underlie behaviour. This study investigated the application of the TPB to the prediction of fruit and vegetable consumption across three prospective cohorts. The primary aim of the study was to investigate whether interactions between major constructs in the theory would increase the ability of the model to predict intention to consume fruit and vegetables (i.e., attitude × perceived behavioural control [PBC], subjective norm × PBC, subjective norm × attitude) and self-reported fruit and vegetable intake (i.e., PBC × intention).
Design: Secondary data analysis from three cohorts: One predictive study (cohort 1) and two intervention studies (cohorts 2 and 3).
Method: Participants completed a TPB measure at baseline and a measure of fruit and vegetable intake at 1 week (cohort 1; n = 90) or 1 month (cohorts 2 and 3; n = 296).
Results: Attitude moderated the impact of PBC on intention. PBC moderated the impact of intention on behaviour at 1 week but not 1 month.
Conclusion: The variance accounted for by the interactions was small. However, the presence of interactions between constructs within the TPB demonstrates a need to consider interactions between variables within the TPB in both theoretical and applied research using the model.
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http://dx.doi.org/10.1111/bjhp.12115 | DOI Listing |
Am J Hum Biol
January 2025
LIFE Research Group, University Jaume I, Castellon, Spain.
Background: Previous research in adults has suggested that healthy dietary patterns could be an effective strategy for blood pressure (BP) control. However, during adolescence, the scientific literature examining this relationship is scarce and controversial since inverse and null associations have been reported. Thus, the aim of our study was to analyze the relationship between the level of adherence to the Mediterranean diet (MD) and consumption of fresh fruits and vegetables at baseline with changes in BP over a two-year period during adolescence.
View Article and Find Full Text PDFIndian J Med Res
November 2024
Department of Community Medicine, Burdwan Medical College & Hospital, Kolkata, West Bengal, India.
Background & objectives Non communicable diseases (NCD) have emerged as one of the leading causes of mortality and morbidity in India in the past few decades. This study was undertaken to determine the prevalence of NCD risk factors among adults residing in urban slums of West Bengal, India. Methods A community based cross-sectional study was conducted among adult population aged 15-69 yr in urban slums of Purba Burdwan district, West Bengal over a period of two months.
View Article and Find Full Text PDFBMC Nutr
December 2024
Department of Public Health, Faculty of Medicine, University of Helsinki, P.O. Box 20, Helsinki, 00014, Finland.
Background And Objectives: Associations between fruit and vegetable consumption and mental health have been observed, but studies comparing different types of plant foods are sparse. This study among Finnish municipal employees examined associations of the consumption of a range of different plant foods with emotional well-being (EWB).
Data And Methods: We used survey data from the Helsinki Health Study conducted in 2017 among 19-39-year-old employees of the City of Helsinki, Finland (N = 5898, response rate 51.
Appetite
December 2024
Department of Psychology, Humboldt-Universitaet zu Berlin, Berlin, Germany; Department of Physics and Life Science Imaging Center, Hong Kong Baptist University, Hongkong; Faculty of Education, National University of Malaysia, Kuala Lumpur, Malaysia.
The ongoing obesity epidemic is an indicator that traditional efforts towards diet change are insufficient, and interventions focusing mainly on restrictions of unhealthy food are of limited success. Therefore, approaches targeting food preferences should be integral in counteracting the current epidemic. However, food preferences are affected by a multitude of factors and are usually resistant to changes later in life.
View Article and Find Full Text PDFJ Food Sci
December 2024
College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.
Brown seaweed oligosaccharides (BSO) have demonstrated potential as nutraceuticals with cholesterol-lowering, anti-obesity, and anti-constipation properties. In this study, we initially examined how BSO impact body weight, blood lipid levels, and adipose tissue in a rat model of obesity induced by a high-fat diet. Our findings revealed that BSO administration significantly attenuated body weight gain, ameliorated dyslipidemia, and reduced visceral adiposity.
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