Randomized trial of weight-loss-diets for young adults varying in fish and fish oil content.

2.50
Hdl Handle:
http://hdl.handle.net/2336/14389
Title:
Randomized trial of weight-loss-diets for young adults varying in fish and fish oil content.
Authors:
Thorsdottir, I; Tomasson, H; Gunnarsdottir, I; Gisladottir, E; Kiely, M; Parra, M D; Bandarra, N M; Schaafsma, G; Martinéz, J A
Citation:
Int J Obes (Lond) 2007, 31(10):1560-6
Issue Date:
1-Oct-2007
Abstract:
OBJECTIVE: To investigate the effect of including seafood and fish oils, as part of an energy-restricted diet, on weight loss in young overweight adults. DESIGN: Randomized controlled trial of energy-restricted diet varying in fish and fish oil content was followed for 8 weeks. Subjects were randomized to one of four groups: (1) control (sunflower oil capsules, no seafood); (2) lean fish (3 x 150 g portions of cod/week); (3) fatty fish (3 x 150 g portions of salmon/week); (4) fish oil (DHA/EPA capsules, no seafood). The macronutrient composition of the diets was similar between the groups and the capsule groups, were single-blinded. SUBJECTS: A total of 324 men and women aged 20-40 years, BMI 27.5-32.5 kg/m(2) from Iceland, Spain and Ireland. MEASUREMENTS: Anthropometric data were collected at baseline, midpoint and endpoint. Confounding factors were accounted for, with linear models, for repeated measures with two-way interactions. The most important interactions for weight loss were (diet x energy intake), (gender x diet) and (gender x initial-weight). RESULTS: An average man in the study (95 kg at baseline receiving 1600 kcal/day) was estimated to lose 3.55 kg (95% CI, 3.14-3.97) (1); 4.35 kg (95% CI, 3.94-4.75) (2); 4.50 kg (95% CI, 4.13-4.87) (3) and 4.96 kg (95% CI, 4.53-5.40) on diet (4) in 4 weeks, from baseline to midpoint. The weight-loss from midpoint to endpoint was 0.45 (0.41-0.49) times the observed weight loss from baseline to midpoint. The diets did not differ in their effect on weight loss in women. Changes in measures of body composition were in line with changes in body weight. CONCLUSION: In young, overweight men, the inclusion of either lean or fatty fish, or fish oil as part of an energy-restricted diet resulted in approximately 1 kg more weight loss after 4 weeks, than did a similar diet without seafood or supplement of marine origin. The addition of seafood to a nutritionally balanced energy-restricted diet may boost weight loss.
Description:
To access publisher full text version of this article. Please click on the hyperlink in Additional Link field
Additional Links:
http://dx.doi.org/10.1038/sj.ijo.0803643

Full metadata record

DC FieldValue Language
dc.contributor.authorThorsdottir, I-
dc.contributor.authorTomasson, H-
dc.contributor.authorGunnarsdottir, I-
dc.contributor.authorGisladottir, E-
dc.contributor.authorKiely, M-
dc.contributor.authorParra, M D-
dc.contributor.authorBandarra, N M-
dc.contributor.authorSchaafsma, G-
dc.contributor.authorMartinéz, J A-
dc.date.accessioned2007-11-01T13:51:56Z-
dc.date.available2007-11-01T13:51:56Z-
dc.date.issued2007-10-01-
dc.date.submitted2007-11-01-
dc.identifier.citationInt J Obes (Lond) 2007, 31(10):1560-6en
dc.identifier.issn0307-0565-
dc.identifier.pmid17502874-
dc.identifier.doi10.1038/sj.ijo.0803643-
dc.identifier.otherNUR12-
dc.identifier.urihttp://hdl.handle.net/2336/14389-
dc.descriptionTo access publisher full text version of this article. Please click on the hyperlink in Additional Link fielden
dc.description.abstractOBJECTIVE: To investigate the effect of including seafood and fish oils, as part of an energy-restricted diet, on weight loss in young overweight adults. DESIGN: Randomized controlled trial of energy-restricted diet varying in fish and fish oil content was followed for 8 weeks. Subjects were randomized to one of four groups: (1) control (sunflower oil capsules, no seafood); (2) lean fish (3 x 150 g portions of cod/week); (3) fatty fish (3 x 150 g portions of salmon/week); (4) fish oil (DHA/EPA capsules, no seafood). The macronutrient composition of the diets was similar between the groups and the capsule groups, were single-blinded. SUBJECTS: A total of 324 men and women aged 20-40 years, BMI 27.5-32.5 kg/m(2) from Iceland, Spain and Ireland. MEASUREMENTS: Anthropometric data were collected at baseline, midpoint and endpoint. Confounding factors were accounted for, with linear models, for repeated measures with two-way interactions. The most important interactions for weight loss were (diet x energy intake), (gender x diet) and (gender x initial-weight). RESULTS: An average man in the study (95 kg at baseline receiving 1600 kcal/day) was estimated to lose 3.55 kg (95% CI, 3.14-3.97) (1); 4.35 kg (95% CI, 3.94-4.75) (2); 4.50 kg (95% CI, 4.13-4.87) (3) and 4.96 kg (95% CI, 4.53-5.40) on diet (4) in 4 weeks, from baseline to midpoint. The weight-loss from midpoint to endpoint was 0.45 (0.41-0.49) times the observed weight loss from baseline to midpoint. The diets did not differ in their effect on weight loss in women. Changes in measures of body composition were in line with changes in body weight. CONCLUSION: In young, overweight men, the inclusion of either lean or fatty fish, or fish oil as part of an energy-restricted diet resulted in approximately 1 kg more weight loss after 4 weeks, than did a similar diet without seafood or supplement of marine origin. The addition of seafood to a nutritionally balanced energy-restricted diet may boost weight loss.en
dc.language.isoenen
dc.publisherNature Pub. Groupen
dc.relation.urlhttp://dx.doi.org/10.1038/sj.ijo.0803643en
dc.subject.meshPubMed - in processen
dc.subject.meshFish Oilsen
dc.subject.meshMaleen
dc.subject.meshWeight Lossen
dc.subject.meshObesityen
dc.subject.meshSeafooden
dc.titleRandomized trial of weight-loss-diets for young adults varying in fish and fish oil content.en
dc.typeArticleen
dc.format.digYES-

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