Effect of Differently Fed Farmed Gilthead Sea Bream Consumption

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

38 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-12-01

Study Completion Date

2014-02-28

Brief Summary

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The trial was a double-blind randomized dietary intervention study with a 1:1 allocation ratio, conducted in accordance with the Declaration of Helsinki. This study compared two treatments, i.e., farmed fish fed with olive pomace enriched diet (enriched fish; EF) versus farmed fish fed with fish oil diet (conventional fish; CF), using a crossover design. The study lasted 22 weeks; treatment period one (8 weeks, mid-January-end of March), washout period (6 weeks), and treatment period two (8 weeks, mid-May-end of July). The participants were equally distributed to the two treatments along treatment periods. Eligible subjects were all adults aged between 30 and 65 years old with a body mass index (BMI) between 24.0 and 31.0 kg/m2 who met the eligibility criteria for habitual fish consumption (\<150 g of cooked fish per week). Exclusion criteria were pregnancy, current or recent weight loss effort, use of dietary supplements and being under treatment for any medical disorder. Subjects were allowed to use medical treatment for thyroid gland disorders, iron or folic acid supplements, contraceptives or hormone replacement therapy (HRT) for women, provided they would continue receiving their medication throughout the study. The aim of the study was to evaluate the effects of consumption of fillets from differently fed farmed gilthead sea bream on markers of cardiometabolic health such as platelet aggregation, circulating haemostatic markers, markers of inflammation and oxidative stress.

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Detailed Description

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Conditions

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Cardiometabolic Health

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

CROSSOVER

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Conventional fish

This arm will consume 2 portions of gilthead seabream fed with conventional diet. Each portion weighed on average 380 g (raw, quantity of edible fillet approximately 170 g). Participants were instructed to consume fish twice weekly, one portion at a time.

Group Type ACTIVE_COMPARATOR

Conventional fish

Intervention Type BEHAVIORAL

Participants initially randomized to this intervention arm will be provided with conventional sea bream fillets and will be asked to consume them twice weekly for 8 weeks. Conventional sea bream fillets will be produced by a fish farming company using standard procedures. Participants will also be instructed to keep the reception of prescribed medications and dietary supplements stable and not to change their lifestyle habits (e.g. other dietary habits besides fish consumption, physical activity habits or sleep habits) during the intervention. After a 6-week wash-out period (no fish consumption), participants will cross over to the other intervention arm.

Enriched fish

This arm will consume 2 portions of gilthead seabream fed with olive pomace enriched diet. Each portion weighed on average 380 g (raw, quantity of edible fillet approximately 170 g). Participants were instructed to consume fish twice weekly, one portion at a time.

Group Type EXPERIMENTAL

Enriched fish

Intervention Type BEHAVIORAL

Participants initially randomized to this intervention arm will be provided with conventional sea bream fillets and will be asked to consume them twice weekly for 8 weeks. Conventional sea bream fillets will be produced by a fish farming company using a diet enriched with olive pomace. Participants will also be instructed to keep the reception of prescribed medications and dietary supplements stable and not to change their lifestyle habits (e.g. other dietary habits besides fish consumption, physical activity habits or sleep habits) during the intervention. After a 6-week wash-out period (no fish consumption), participants will cross over to the other intervention arm.

Interventions

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Conventional fish

Participants initially randomized to this intervention arm will be provided with conventional sea bream fillets and will be asked to consume them twice weekly for 8 weeks. Conventional sea bream fillets will be produced by a fish farming company using standard procedures. Participants will also be instructed to keep the reception of prescribed medications and dietary supplements stable and not to change their lifestyle habits (e.g. other dietary habits besides fish consumption, physical activity habits or sleep habits) during the intervention. After a 6-week wash-out period (no fish consumption), participants will cross over to the other intervention arm.

Intervention Type BEHAVIORAL

Enriched fish

Participants initially randomized to this intervention arm will be provided with conventional sea bream fillets and will be asked to consume them twice weekly for 8 weeks. Conventional sea bream fillets will be produced by a fish farming company using a diet enriched with olive pomace. Participants will also be instructed to keep the reception of prescribed medications and dietary supplements stable and not to change their lifestyle habits (e.g. other dietary habits besides fish consumption, physical activity habits or sleep habits) during the intervention. After a 6-week wash-out period (no fish consumption), participants will cross over to the other intervention arm.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Age 30-65 years old
* Body Mass Index between 24-31 kg/m\^2
* Habitual fish consumption: \<150 g of cooked fish per week

Exclusion Criteria

* Pregnancy
* Current or recent weight loss effort
* Use of dietary supplements
* Being under treatment for any medical disorder

Minimum Eligible Age

30 Years

Maximum Eligible Age

65 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Responsible Party

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Smaragdi Antonopoulou

Professor in Biochemistry

Responsibility Role PRINCIPAL_INVESTIGATOR