Background and Aim: Today cardiovascular diseases are the main cause of disability and mortality in many countries. This study was performed to determine the effect of health education based on the Health Belief Model on the knowledge, attitude and practice of housewives in Isfahan, Iran regarding improving their nutritional behavior for preventing heart disease.

Materials and Methods: This was a quasi-experimental intervention, including 68 Isfahani housewives randomly divided into an experimental (n=34) and a control (n=34) group. Data were collected using a standard health belief model (HBM) and a food-frequency (FFQ) questionnaire. The experimental group attended, after a pre-test, 6 weekly education sessions. The HBM questionnaire was completed 3 times (before and immediately, and 2 months, after education), while the FFQ questionnaire was completed twice (before and 2 months after education) by the housewives. The data were analyzed using SPSS16 software, the statistical tests being t-test, and repeated measure ANOVA.

Results: The two groups were not significantly different with regard to demographic variables. Similarly, before the intervention they were statistically similar with respect to the scores of the HBM components (P>0.05). After the intervention, significant differences appeared between the experimental and the control groups with regard to all the components (knowledge, perceived susceptibility, perceived severity, perceived benefits, perceived barriers, perceived efficacy, and performance; in all cases, P<0.001)

Conclusion: Based on the findings, it can be concluded that the intervention had a positive impact on the feeding pattern of the women and was effective in increasing or improving their knowledge, attitude and practice.