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Int J Endocrinol Metab. 2016 Jul 24;14(3):e34889. doi: 10.5812/ijem.34889. eCollection 2016 Jul.

The Effect of Walnut Oil Consumption on Blood Sugar in Patients With Diabetes Mellitus Type 2.

Author information

1
Cardiovascular Research Center, Shiraz University of Medical Sciences, Shiraz, IR Iran.
2
Cardiovascular Research Center, Shiraz University of Medical Sciences, Shiraz, IR Iran; Student Research Committee, Shiraz University of Medical Sciences, Shiraz, IR Iran.

Abstract

BACKGROUND:

Prevalence of diabetes mellitus type 2 (DM) is increasing globally. Considering the potential role of poly-unsaturated fatty acids in prevention of DM type 2 and lipid profiles improvement, some studies have been carried out on walnut. However, there are no studies on control of blood sugar in DM type 2 patients using walnut.

OBJECTIVES:

The current study aimed to evaluate the effect of walnut oil on blood sugar in DM type 2 patients.

METHODS:

This randomized control clinical trial was performed on 100 patients with DM type 2. For the experiment group (n = 50), walnut oil (15 g/day for three months) was added to their diet, while the control group (n = 50) did not undergo any interventions. Before initiation of the experiment and after the experiment, the systolic and diastolic blood pressure (SBP and DBP) levels, fasting blood sugar (FBS) and HbA1c were measured.

RESULTS:

The two groups were not significantly different for SBP, DBP, body weight, and Body Mass Index. HbA1c level decreased significantly in the experiment group by 7.86% ± 21.97 (P = 0.005) from 7.00 ± 1.08 before the intervention to 6.37 ± 1.29 after the intervention. Also, FBS level decreased significantly by 8.24% ± 16.77 (P = 0.001); from 158.37 ± 48.16 before the intervention to 137.91 ± 23.24 after the intervention in the experimental group. These changes in the control group were not significant.

CONCLUSIONS:

Consumption of walnut oil (15 g/day for three months) was shown to improve blood glucose level but, no changes were noted for bodyweight and blood pressure in type two diabetic patients.

KEYWORDS:

Diabetes Mellitus Type 2; Fasting Blood Sugar; Walnut Oil

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