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 .
Additive effect of linseed oil supplementation on the lipid profiles of older adults
Background Linseed oil has been investigated as a rich source of n-3 series polyunsaturated fatty acids , which mainly produce a non-atherogenic lipid profile . The objective of this study was to investigate the effect of linseed oil supplementation associated with nutritional guidelines on the lipid profiles of older adults , according to the intake of saturated fatty acids ( SFA ) . Methods We conducted a double-blind , placebo-controlled clinical trial with 110 older adults r and omized in two groups : placebo and linseed oil .  The linseed oil group received supplementation with 3 g of linseed oil . Both groups received nutritional guidance and were supplemented for 90 days with monthly blood collection for biochemical analysis . The dietary intake of saturated fat was subdivided into low ( < 7 % SFA/day of the total energy value ) and high consumption groups ( > 7 % SFA/day of the total energy value ) . Results Low SFA ( < 7 % SFA/day of total energy value ) consumption was associated with lower total cholesterol concentrations . However , we observed that the linseed oil group , including older adults who consumed > 7 % SFA/day , had a greater reduction in total cholesterol than the placebo group ( P=0.020 ) . The same was observed for low-density lipoprotein ( LDL ) cholesterol ( P<0.050 ) , suggesting an additive effect of linseed oil and diet . High-density lipoprotein ( HDL ) cholesterol concentrations were increased significantly in only the linseed group , suggesting that the nutritional intervention alone did not improve HDL cholesterol . Conclusion The results suggest that the nutritional intervention was effective , but linseed oil showed notable effects by increasing the HDL cholesterol concentration . In addition , consumption of < 7 % SFA/day of the total energy value increased the effect of linseed oil , demonstrating the importance of reducing the consumption of saturated fat
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 .