Randomized trial of weight-loss-diets for young adults varying in fish and fish oil content
Thorsdottir I, Tomasson H, Gunnarsdottir I, Gisladottir E, Kiely M, Parra MD, Bandarra NM, Schaafsma G, Martinéz JA
International journal of obesity (2005) · 163 citas
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Cómo se estudió
- Diseño
- Ensayo controlado aleatorizado (indexado por PubMed)
- Estudiado en
- Personas
- Resultado principal
- Marcadores de salud y funcionamiento
Quién lo pagó
- Financiación
- Financiación no declarada
Publicación
- Publicado
- 2007-05-15 · Int J Obes (Lond) · vol. 31 · número 10 · págs. 1560–1566
- Editorial
- Springer Nature
- Citado
- 262 citas · más que el 99% de estudios similares · 15.3× el promedio de su campo
- Impacto
- Entre el 10 % más citado de su campo
- Referencias
- 36 trabajos
- Acceso
- Acceso abierto (copia en repositorio)
- Áreas de investigación
- Fatty Acid Research and Health · Diet and metabolism studies · Nutritional Studies and Diet
- Palabras clave
- weight loss, fish oil, seafood, hypocaloric diet, lean fish, fatty fish, salmon, cod, docosahexaenoic acid, EPA, body composition, sex differences, energy intake, weight loss maintenance, dietary supplementation
- MeSH
- animals, fishes, humans, obesity, weight loss, fish oils, plant oils, treatment outcome, diet, fat-restricted, fish products, adult, female, male, sunflower oil
9 autores
- Inga Þórsdóttir🇮🇸 · autor de correspondenciaUniversity of Iceland; National University Hospital of Iceland
- Helgi Tómasson🇮🇸University of Iceland
- Ingibjörg Gunnarsdóttir🇮🇸University of Iceland; National University Hospital of Iceland
- Elisabet Unnur Gisladottir🇮🇸University of Iceland; National University Hospital of Iceland
- Mairead E Kiely🇮🇪University College Cork
- M. Dolores Parra🇪🇸Universidad de Navarra
- Narcisa Maria Bandarra
- G. Schaafsma🇳🇱Wageningen University & Research
- José Alfredo Martínez🇪🇸Universidad de Navarra
Resumen
El texto original del estudio, en el idioma en que se publicó.
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.
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