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Randomized Controlled Trial
. 2013 Dec 26:13:1231.
doi: 10.1186/1471-2458-13-1231.

Foods, nutrients or whole diets: effects of targeting fish and LCn3PUFA consumption in a 12mo weight loss trial

Linda C Tapsell  1 , Marijka J Batterham, Karen E Charlton, Elizabeth P Neale, Yasmine C Probst, Jane E O'Shea, Rebecca L Thorne, Qingsheng Zhang, Jimmy Chun Yu Louie
Affiliations
Randomized Controlled Trial

Foods, nutrients or whole diets: effects of targeting fish and LCn3PUFA consumption in a 12mo weight loss trial

Linda C Tapsell et al. BMC Public Health. .

Abstract

Background: There is some evidence in the literature that emphasising fish consumption may assist with weight loss. The aim was to assess the effects of advice to consume 2 fish meals per week in a weight loss diet.

Methods: A parallel randomised placebo-controlled trial was conducted in 118 obese Australian adults (mean BMI ± SD 31.3 ± 3.5 kg/m2; mean age ± SD 45 ± 10 y; 28% male). Participants received low calorie dietary advice+placebo (1 g olive oil; CONTROL), low calorie dietary advice emphasising fish+placebo (Fish), or low calorie dietary advice emphasising fish diet + LCn3PUFA supplements (Fish+S). Individualised advice targeted 2 MJ energy deficit (30%E fat, 45%E carbohydrate and 25%E protein) with or without two servings (180 g) fatty fish/wk.

Results: All groups lost weight at 12 months (CONTROL -4.5 kg vs. Fish -4.3 kg vs. Fish+S -3.3 kg; p<0.001) and percentage body fat (

Control: -1.5% vs. Fish: -1.4% vs. Fish+S: -0.7%; p<0.001) but there were no significant differences between groups. Cardiovascular disease risk factors changed as expected from weight loss.

Conclusions: Advice to consume 2 fish meals per week did not enhance the effects on weight loss of a healthy low calorie diet.

Trial registration: ACTRN12608000425392.

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Figures

Figure 1
Figure 1
The flow of study (CONSORT diagram).
Figure 2
Figure 2
Fish consumption at baseline, 3 months and 12 months.
Figure 3
Figure 3
Change in % body weight by group at 3 and 12 months.
See this image and copyright information in PMC

References

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    1. National Health and Medical Research Council. A review of the evidence to address targeted questions to inform the revision of the Australian Dietary Guidelines - Evidence Statements. Canberra: Commonwealth of Australia; 2011.

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