Objectives: To investigate the relationship between dietary habits, anthropometric values and microvascular reactivity of the elderly who are users of organized accommodation in nursing homes and retirement homes. Study Design: Observational cross-sectional study. Participants and methods: The respondents in this study were the elderly men and women. The sample consisted of 34 men and 35 women from the Retirement Home, Drinska 10, Osijek, who voluntarily agreed to participate. Their weight, height, waist circumference, hip circumference, blood pressure and pulse were measured and BMI was calculated. In addition, the completed the EPIC-Norfolk questionnaire for the purposes of evaluating their dietary habits. Finally, microvascular reactivity was measured on the volar side of the forearm using a laser Doppler flowmeter. Results: There were statistically significant differences in anthropometric values between men and women in body weight, waist circumference and waist-hip ratio. Regarding the dietary habits, a significant difference in salt, alcohol and carotene intake between the sexes was observed. On the other hand, there were no significant differences between men and women in the value of post-occlusive reactive hyperaemia (PORH). An inverse proportionality was observed in women and men in the connection between anthropometric values and PORH, with statistically significant P values for waist circumference in women and waist-hip ratio in women. Conclusion: Dietary habits did not differ much between elderly men and women who are users of organized accommodation in retirement and nursing homes. The only significant differences were observed between the intake of salt, alcohol and carotene. The connection between dietary habits and microvascular reactivity has not been established. Furthermore, there is also no difference between the sexes in microvascular reactivity, because women in old age no longer secrete oestrogen, which has a protective effect on blood vessels.