Subgroup analyses showed that using whole flaxseed in doses ≥30 g d-1 , longer-term interventions ( ≥12 weeks ) and studies including participants with higher BMI ( ≥ 27 kg m-2 ) had positive effects on body composition  .
Whole flaxseed is a good choice for weight management particularly for weight reduction in overweight and obese participants
Flaxseed consumption may be inversely associated with obesity ; however , findings of available r and omized controlled trials ( RCTs ) are conflicting .
The present study aim ed to systematic ally review and analyse RCTs assessing the effects of flaxseed consumption on body weight and body composition .
Benefits of foods supplemented with vegetable oils rich in α-linolenic, stearidonic or docosahexaenoic acid in hypertriglyceridemic subjects: a double-blind, randomized, controlled trail
Abstract Purpose The aim of the study was to investigate the influence of foods enriched with vegetable oils varying in their n-3 polyunsaturated fatty acids profile on  cardiovascular risk factors for hypertriglyceridemic subjects . Methods Fifty-nine hypertriglyceridemic subjects ( triglycerides ≥ 1.5 mmol/L ) were included in the r and omized , double-blind , placebo-controlled , crossover study . The placebo group received sunflower oil [ linoleic acid ( LA ) group ; 10 g LA/day ] . The intervention groups received linseed oil [ α-linolenic acid ( ALA ) group ; 7 g ALA/day ] , echium oil [ stearidonic acid ( SDA ) group ; 2 g SDA/day ] or microalgae oil [ docosahexaenoic acid ( DHA ) group ; 2 g DHA/day ] over 10 weeks . Blood sample s were collected at baseline and at the end of each period . Results Total cholesterol ( TC ) and low-density-lipoprotein cholesterol decreased significantly in the LA and ALA groups ( LA : P ≤ 0.01 , ALA : P ≤ 0.05 ) . No changes in blood lipids were observed in the SDA group . Significant increases in TC and high-density-lipoprotein cholesterol occurred in the DHA group ( P ≤ 0.05 ) . In the ALA and SDA groups , the content of eicosapentaenoic acid in erythrocyte lipids increased significantly ( P ≤ 0.05 ) after 10 weeks ( ALA group : 38 ± 37 % , SDA group : 73 ± 59 % ) . Conclusion Foods enriched with different vegetable oils rich in ALA or SDA are able to increase the n-3 long-chain polyunsaturated fatty acids content in erythrocyte lipids ; echium oil is more potent in comparison with linseed oil . Blood lipids were beneficially modified through the consumption of food products enriched with sunflower , linseed and microalgae oils , whereas echium oil did not affect blood lipids . Clinical Trials.gov : NCT01437930
Subgroup analyses showed that using whole flaxseed in doses ≥30 g d-1 , longer-term interventions ( ≥12 weeks ) and studies including participants with higher BMI ( ≥ 27 kg m-2 ) had positive effects on body composition  .
Whole flaxseed is a good choice for weight management particularly for weight reduction in overweight and obese participants
Flaxseed consumption may be inversely associated with obesity ; however , findings of available r and omized controlled trials ( RCTs ) are conflicting .
The present study aim ed to systematic ally review and analyse RCTs assessing the effects of flaxseed consumption on body weight and body composition .