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 .
Lignan Content of the Flaxseed Influences Its Biological Effects in Healthy Men and Women
Objective : The omega-3 polyunsaturated fatty acid ( n-3 PUFA ) as well as lignan components of flaxseed ( FLX ) can have beneficial effects . In this 6-week-long , r and omized , double-blinded , placebo-controlled study , we investigated the effects of FLX lignans on cardiovascular risk factors . Methods : Thirty-seven subjects ( 13 men and 24 women , age : 54 ± 7 years , body mass index [ BMI ] : 29.7 ± 1 kg/m2 ) consumed nutrition bars  with similar macronutrient contents . The fatty acid composition and the lignan contents of the bars differed significantly . Two FLX bars both contained 3.0 g of alpha linolenic acid ( ALA : 18:3 n-3 ) but different amount of lignans ( 0.15 g vs. 0.41 g ) . Results : High-lignan FLX  decreased total cholesterol ( C ) by 12 % ( p = 0.044 ) , LDL-C by 15 % ( p = 0.022 ) , and oxidized (Ox)-LDL by 25 % ( p = 0.035 ) . Regular FLX tended to increase Ox-LDL by 13 % ( p = 0.051 ) . The difference between the effects of high-lignan vs. regular lignan FLX  on Ox-LDL was highly significant ( p = 0.004 ) . Conclusion : High-lignan FLX has the unique property of decreasing Ox-LDL , which is an independent risk factor for cardiovascular disease
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 .