Tehran University of Medical Sciences Journal of Nutritional Sciences and Dietetics 3 2 2017 04 30 23 27 EN Mahsa Mohajeri Department of Nutrition, Tabriz University of Medical Science, Tabriz, Iran Laleh Payahoo Nutrition Research Center, Faculty of Nutrition, Tabriz University of Medical Sciences, Tabriz, Iran Babak Biniaz Department of Physiology, Rasht University, Rasht, Iran 2017 06 09 2017 09 28 Objective: Dietary diversity has been recommended to be effective in achieving an adequate nutrient intake. Few studies have investigated dietary diversity and nutrient intake in Prinzmetal angina patients. This case-control study aimed to assess the association between dietary diversity and Prinzmetal angina incidence. Method: Energy and nutrient intakes were measured using three day 24-h recall. Dietary diversity was measured by summing the number of food groups consumed over 12 weeks. Independent-samples t test was used to compare quantitative variables between the groups. Results: The mean score for Prinzmetal angina patients was 3 ± 0.025 groups/day, for controls was 4.5 ± 0.053 groups/day. There was a significant difference in diet diversity score between the groups (p = 0.01). There were significant differences in macro and micronutrient intakes between the groups with the exception of copper (p < 0.05). Intake of vitamin B12 in cases was 0.8 ± 0.02 μg/day and in controls was 1.5 ± 0.01 μg/day. Iron and zinc intakes in cases were lower than in controls. Conclusion: Increasing dietary diversity in patients with Prinzmetal angina can be an important approach to declining the clinical symptoms of Prinzmetal angina. https://jnsd.tums.ac.ir/index.php/jnsd/article/view/91 https://jnsd.tums.ac.ir/index.php/jnsd/article/download/91/193