Moderate consumption of fatty fish reduces diastolic blood pressure in overweight and obese European young adults during energy restriction

2.50
Hdl Handle:
http://hdl.handle.net/2336/90053
Title:
Moderate consumption of fatty fish reduces diastolic blood pressure in overweight and obese European young adults during energy restriction
Authors:
Ramel, Alfons; Martinez, J Alfredo; Kiely, Mairead; Bandarra, Narcisa M; Thorsdottir, Inga
Citation:
Nutrition 2010, 26(2):168-74
Issue Date:
1-Feb-2010
Abstract:
OBJECTIVE: Dietary intervention studies suggest that a daily fish meal can improve blood pressure (BP); however, such a dietary regimen might be difficult to sustain. The objective of the present study was to investigate whether salmon consumption three times per week improves BP during energy restriction in young adults. METHODS: In this 8-wk intervention, 324 subjects (20-40 y of age, body mass index 27.5-32.5kg/m(2), from Iceland, Spain, and Ireland) were randomized to one of four energy-restricted diets (-30% relative to estimated requirements): salmon (150g three times per week, resulting in a daily consumption of 2.1g of omega-3 long-chain polyunsaturated fatty acids [omega-3 LC-PUFAs]), cod (150g three times per week, 0.3g of omega-3 LC-PUFAs per day), fish oil capsules (1.3g of omega-3 LC-PUFAs per day), or control (sunflower oil capsules, no seafood). Body weight, diastolic BP (DBP), systolic BP (SBP), and docosahexaenoic acid (DHA) in erythrocyte membrane were measured at baseline and endpoint. RESULTS: Participants showed weight loss (-5.2+/-3.2kg, P<0.001) and decreases in SBP (-4.4+/-8.6 mmHg, P<0.001) and DBP (-4.1+/-7.4 mmHg, P<0.001) after the intervention. The salmon (B=-2.71, P=0.032) and fish oil (B=-2.48, P=0.044) groups had significantly lower endpoint DPB than the cod group, but not significantly different from control. Lower baseline DHA (percentage) in erythrocytes was associated with greater DBP reductions (B=0.576, P=0.017). CONCLUSION: Salmon consumption three times per week can decrease DBP similar to fish oil and significantly more than lean fish during an 8-wk energy restriction in young overweight individuals. A lower DHA content in erythrocyte membrane at baseline, which might indentify infrequent fish eaters, is associated with a greater DBP reduction in the course of an 8-wk dietary intervention providing fatty seafood.
Description:
To access publisher full text version of this article. Please click on the hyperlink in Additional Links field
Additional Links:
http://dx.doi.org/10.1016/j.nut.2009.04.002

Full metadata record

DC FieldValue Language
dc.contributor.authorRamel, Alfonsen
dc.contributor.authorMartinez, J Alfredoen
dc.contributor.authorKiely, Maireaden
dc.contributor.authorBandarra, Narcisa Men
dc.contributor.authorThorsdottir, Ingaen
dc.date.accessioned2010-01-19T16:25:38Z-
dc.date.available2010-01-19T16:25:38Z-
dc.date.issued2010-02-01-
dc.date.submitted2010-02-01-
dc.identifier.citationNutrition 2010, 26(2):168-74en
dc.identifier.issn1873-1244-
dc.identifier.pmid19487105-
dc.identifier.doi10.1016/j.nut.2009.04.002-
dc.identifier.urihttp://hdl.handle.net/2336/90053-
dc.descriptionTo access publisher full text version of this article. Please click on the hyperlink in Additional Links fielden
dc.description.abstractOBJECTIVE: Dietary intervention studies suggest that a daily fish meal can improve blood pressure (BP); however, such a dietary regimen might be difficult to sustain. The objective of the present study was to investigate whether salmon consumption three times per week improves BP during energy restriction in young adults. METHODS: In this 8-wk intervention, 324 subjects (20-40 y of age, body mass index 27.5-32.5kg/m(2), from Iceland, Spain, and Ireland) were randomized to one of four energy-restricted diets (-30% relative to estimated requirements): salmon (150g three times per week, resulting in a daily consumption of 2.1g of omega-3 long-chain polyunsaturated fatty acids [omega-3 LC-PUFAs]), cod (150g three times per week, 0.3g of omega-3 LC-PUFAs per day), fish oil capsules (1.3g of omega-3 LC-PUFAs per day), or control (sunflower oil capsules, no seafood). Body weight, diastolic BP (DBP), systolic BP (SBP), and docosahexaenoic acid (DHA) in erythrocyte membrane were measured at baseline and endpoint. RESULTS: Participants showed weight loss (-5.2+/-3.2kg, P<0.001) and decreases in SBP (-4.4+/-8.6 mmHg, P<0.001) and DBP (-4.1+/-7.4 mmHg, P<0.001) after the intervention. The salmon (B=-2.71, P=0.032) and fish oil (B=-2.48, P=0.044) groups had significantly lower endpoint DPB than the cod group, but not significantly different from control. Lower baseline DHA (percentage) in erythrocytes was associated with greater DBP reductions (B=0.576, P=0.017). CONCLUSION: Salmon consumption three times per week can decrease DBP similar to fish oil and significantly more than lean fish during an 8-wk energy restriction in young overweight individuals. A lower DHA content in erythrocyte membrane at baseline, which might indentify infrequent fish eaters, is associated with a greater DBP reduction in the course of an 8-wk dietary intervention providing fatty seafood.en
dc.languageENG-
dc.language.ison/aen
dc.publisherElsevier Scienceen
dc.relation.urlhttp://dx.doi.org/10.1016/j.nut.2009.04.002en
dc.subject.meshFish Productsen
dc.subject.meshSeafooden
dc.subject.meshWeight Lossen
dc.subject.meshBlood Pressureen
dc.subject.meshPubMed in Processen
dc.titleModerate consumption of fatty fish reduces diastolic blood pressure in overweight and obese European young adults during energy restrictionn/a
dc.typeArticleen
dc.contributor.departmentUnit for Nutrition Research, Landspitali-University Hospital & Faculty of Food Science and Nutrition, University of Iceland, Reykjavik, Iceland.en
dc.identifier.journalNutrition (Burbank, Los Angeles County, Calif.)en

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