Noushin Mohammadifard - PhD Candidate, Isfahan Cardiovascular Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
Nafiseh Toghianifar - Isfahan Cardiovascular Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
Firoozeh Sajjadi - Cardiac Rehabilitation Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
Hassan Alikhasi - Cardiac Rehabilitation Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
Roya Kelishadi - Professor, Isfahan Cardiovascular Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
Maryam Maghroun - Hypertension Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran
Mostafa Esmaeili - Pharmacologist, Vice-chancellery for Food and Drug , Isfahan University of Medical Sciences, Isfahan, Iran
Shahram Ehteshami - Environmental Health, Isfahan Health Center (No۲), Isfahan University of Medical Sciences, Isfahan, Iran
Hamzeh Tabaie - Isfahan Commerce Office, Isfahan, Iran
Nizal Sarrafzadegan - Professor, Isfahan Cardiovascular Research Center, Isfahan Cardiovascular Research Institute, Isfahan University of Medical Sciences, Isfahan, Iran

BACKGROUND: This study aimed to determine the effects of the interventions of Isfahan Healthy Heart Program (IHHP) on the type of oil consumed at the population level. It also tried to assess how this strategy has been effective as a health policy. METHODS: The IHHP, a six-year community intervention program (۲۰۰۱-۰۷), aimed at health promotion through the modification of cardiovascular disease risk factors. It was performed in Isfahan and Najafabad counties (intervention area) and Arak county (reference area), all in central Iran. This study targeted the whole population of over ۲,۰۰۰,۰۰۰ in the intervention area. The findings of annual independent sample surveys were compared with the reference area. Dietary interventions were performed as educational, environmental, and/or legislative strategies. RESULTS: From ۲۰۰۱ to ۲۰۰۷, the mean of changes for hydrogenated oil consumption was -۳.۲ and -۳.۶, and for liquid oil it was ۳.۶ and ۲.۸ times per week in the intervention and reference areas, respectively (P < ۰.۰۰۱). According to Commerce office record, the increase in liquid oil distribution during ۲۰۰۰-۲۰۰۷ was significantly higher in Isfahan than Arak (۳۴% vs. ۲۵%). CONCLUSION: The effects of the simple, comprehensive, and integrated action-oriented interventions of our program could influence policy making and its results at the community level. It can be adopted by other developing countries.   Keywords: Oil Consumption, Hydrogenated Oil, Liquid Oil, Community Trial