Effects of Walnut Consumption on Lipid Profile of Female Undergraduate Students

Document Type : Research Paper


1 Faculty of Nursing and Midwifery, Islamic Azad University, Bojnurd, Iran.

2 Department of Public Health, North Khorasan University of Medical Sciences, Bojnurd, Iran

3 Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran.

4 Department of Anesthesiology and Reanimation, School of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran.

5 Department of Nutrition, School of Medicine, Mashhad University of medical Sciences, Mashhad; and Department of Public Health, North Khorasan University of medical Sciences, Bojnurd, Iran.


Introduction: Cardiovascular disease (CVD) is now an important cause of death all over the world and is a growing health concern. Lifestyle factors, including nutrition, have an undeniable effect on the prevention and treatment of CVD. Walnut has a unique profile and is rich in polyunsaturated fatty acids, which may improve blood lipids and CVD risk factors. Method: A randomized clinical trial, in which 50 participants with a normal lipid profile were randomly divided into two groups. We added 40 gr of walnuts without skin per day for 4 weeks to the usual diet of the intervention group. Results: Paired T-test showed that calorie, protein and fat intake increased significantly in all of the cases, after the consumption of walnuts. At baseline, BMI in control and intervention groups was 21.66 ± 4.06 and 21.22± 4.03 respectively which did not have a significant difference before and after the intervention. We observed a significant decrease in serum LDL and TG concentration in walnut groups after the intervention. Conclusion: The consumption of walnuts could result in decreased serum LDL and TG.


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