---

Background and Aim: Osteoporosis is the most common metabolic bone disease which has been recognized as a public health problem. One out of two women and one out of five men are affected by this disease. Lifestyle and living conditions play a great role in the prevalence of osteoporosis. Nowadays, it is believed that focus on training is more important for women than men, because women not only care about their health but also have a permanent influence on their family health. This study aimed to evaluate the effect of educational program on osteoporosis preventive behaviors in women over 40 years of age. Material and Methods: In this semi-experimental study, 67 women who met our inclusion criteria were selected by convenience sampling method and non-random assignment. The training program was carried out by using pamphlets and posters, and also via answering to the questions of the participants. Data were collected and recorded in our questionnaires one month before and one month after the intervention. Results: Data analysis by using paired t-test showed significant differences in osteoporosis preventive behaviors in women in regard to knowledge (P=0.00), Physical activity (P=0.022) and calcium consumption (P=0.000) after the educational program. The results showed that the training intervention led to a significant increase in participants' knowledge, physical activity and calcium consumption (P<0.05). The calcium intake increased from 670.5+259.3 mg before the intervention to 1103.4+390.2 mg after the intervention. There was also a significant difference between the mean daily calcium intake before and after intervention (P<0.05). Conclusion: Training program by use of posters and pamphlets had a positive effect on improving the knowledge of women and resulted in improved osteoporosis preventive behaviors. Keywords: Osteoporosis, Education, Preventive Behaviors, Women. Received: Aug 4, 2014 Accepted: Jun 2, 2015