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 .
Potent Antihypertensive Action of Dietary Flaxseed in Hypertensive Patients
Flaxseed contains & ohgr;-3 fatty acids , lignans , and fiber that together may provide benefits to patients with cardiovascular disease . Animal work identified that patients with peripheral artery disease may particularly benefit from dietary supplementation with flaxseed .  Hypertension is commonly associated with peripheral artery disease . The purpose of the study was to examine the effects of daily ingestion of flaxseed on systolic ( SBP ) and diastolic blood pressure ( DBP ) in peripheral artery disease patients . In this prospect i ve , double-blinded , placebo-controlled , r and omized trial , patients ( 110 in total ) ingested a variety of foods that contained 30 g of milled flaxseed or placebo each day over 6 months . Plasma levels of the & ohgr;-3 fatty acid & agr;-linolenic acid and enterolignans increased 2- to 50-fold in the flaxseed-fed group but did not increase significantly in the placebo group . Patient body weights were not significantly different between the 2 groups at any time . SBP was ≈10 mm Hg lower , and DBP was ≈7 mm Hg lower in the flaxseed group compared with placebo after 6 months . Patients who entered the trial with  a SBP ≥140 mm Hg at baseline obtained a significant reduction of 15 mm Hg in SBP and 7 mm Hg in DBP  from flaxseed ingestion . The antihypertensive effect was achieved selectively in hypertensive patients . Circulating & agr;-linolenic acid levels correlated with SBP and DBP , and lignan levels correlated with changes in DBP . In summary , flaxseed induced one of the most potent antihypertensive effects achieved by a dietary intervention
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 .