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Arch Iran Med. 2019;22(10): 574-583.
PMID: 31679359
Scopus ID: 85074441609
  Abstract View: 2773
  PDF Download: 1596

Original Article

Effect of Weight Reduction Diets Containing Fish, Walnut or Fish plus Walnut on Cardiovascular Risk Factors in Overweight and Obese Women

Somaye Fatahi 1, Fahime Haghighatdoost 2, Bagher Larijani 3, Leila Azadbakht 4,5,2*

1 Student Research Committee, Faculty of Public Health Branch, Iran University of Medical Sciences, Tehran, Iran
2 Food Security Research Center and Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Sciences, Isfahan, Iran
3 Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
4 Diabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran
5 Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
*Corresponding Author: Email: Azadbakhtleila@gmail.com

Abstract

Background: This randomized controlled trial compares the effects of walnuts, fish and the combination of the two on cardiovascular risk factors among overweight or obese females who were losing their weight.

Methods: Ninety-nine overweight and obese women were randomized to 3 weight-reducing diets: fish (300 g/week), walnut (18 walnuts/per week) or fish + walnut (150 g fish and 9 walnuts /week) for 12 weeks. Anthropometric indices, systolic & diastolic blood pressure, fasting blood glucose, inflammatory markers, serum lipids and coagulating factors were measured.

Results: The reduction in systolic blood pressure (SBP) (-5.0 ± 0.3 mm Hg, P = 0.01), fasting blood glucose (FBG) (-12.4 ± 1.9 mg/ dL, P = 0.001), low-density lipoprotein (LDL) (-6.2 ± 1.3 mg/dL, P = 0.03), high-sensitivity C-reactive protein (CRP) (-0.51 ± 0.08 mg/L, P < 0.001), D-dimer (-0.45 ± 0.07 mg/dL, P < 0.001), fibrinogen (-22.4± 4.5 mg/dL, P < 0.001), alanine aminotransferase (ALT) (-6.4 ± 0.9 mg/dL, P < 0.001), aspartate aminotransferase (AST) (-6.3 ± 0.9 IU/L, P = 0.01), tumor necrosis factor-alpha (TNF-α) (-0.08 ± 0.02 ng/mL, P = 0.01), interleukin 6 (IL-6) (-1.6 ± 0.1 ng/mL, P < 0.001) and increase in high-density lipoprotein (HDL) (3.6 ± 0.2 mg/dL, P < 0.001) were significantly higher in the group randomized to the fish + walnut diet compared with either the fish group or the walnut group. A significant decrease was seen in TG (-7.3 ± 1.1 mg/dL, P < 0.001) and diastolic blood pressure (DBP) (-2.0 ± 0.06 mm Hg, P = 0.01) levels in the fish group and the walnut group compared with the fish + walnut group. The change in other risk factors was not different among groups.

Conclusion: The present study shows that the combination of marine and plant omega-3 together is more effective on blood pressure levels, fasting blood glucose, inflammatory markers, serum lipids and coagulating factors than the fish or walnut in isolation.


Cite this article as: Fatahi S, Haghighatdoost F, Larijani B, Azadbakht L. Effect of weight reduction diets containing fish, walnut or fish plus walnut on cardiovascular risk factors in overweight and obese women. Arch Iran Med. 2019;22(9):574–583.
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Submitted: 04 Oct 2018
Accepted: 16 Jun 2019
ePublished: 01 Oct 2019
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