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Nutrition guidance in Dutch family practice: behavioral determinants of reduction of fat consumption^1,2,3,4

¹ From the Divisions of Human Nutrition and Epidemiology (MWV, JEVDV, WMVZ, and WAVS), and Communication and Innovation Studies (MAK), Wageningen University, Wageningen, the Netherlands; Department of Family and Social Medicine, University Medical Centre St Radboud, Nijmegen, the Netherlands (CB, HJMVDH, and CVW).

Background: Studies have shown that the psychosocial determinants attitude, self-efficacy, subjective norm, and health threat are important in predicting intention to change fat consumption. However, the role of habit in relation to these determinants is still largely unknown.

Objective: We aimed to assess whether and how habit influences intention in relation to attitude, self-efficacy, subjective norm, and health threat.

Design: Cross-sectionally, we studied the self-reported psychosocial determinants and intention of 105 (52 intervention, 53 control) patients who participated in a family practice–based tailored nutrition counseling intervention study for lowering cardiovascular risk. Fat intake 15 mo before the assessment of psychosocial determinants was used as a measure of habit. We used logistic regression analyses to develop a model predicting intention to change fat consumption.

Results: Our regression model explained 43% of the variance in intention. Patients who perceived higher subjective norm or more social support had a higher intention. Habit was a significant predictor of intention in interaction with self-efficacy and health threat. Attitude, health threat, age, and group membership (ie, whether patients had been in the intervention group or the control group of the intervention study) were also included in the regression model.

Conclusions: The results suggest that habit in addition to subjective norm and the other more frequently investigated psychosocial determinants are important in predicting intention to change fat consumption. To achieve sustainable health improvement through nutrition education programs, these programs should therefore start focusing more on subjective norm and habit.

Key Words: Habit • psychosocial factors • health education • behavior change • fat-restricted diet • adults

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				A S. Truswell, G. J Hiddink, and J. Blom Nutrition guidance by family doctors in a changing world: problems, opportunities, and future possibilities Am. J. Clinical Nutrition, April 1, 2003; 77(4): 1089S - 1092. [Abstract] [Full Text] [PDF]