There was no effect on waist circumference , high-density lipoprotein cholesterol or blood pressure with the direction of effect favouring tree nuts for waist circumference .
Pooled analyses show a MetS benefit of tree nuts through modest decreases in triglycerides and fasting blood glucose with no adverse effects on other criteria across nut types .
OBJECTIVE To provide a broader evidence summary to inform dietary guidelines of the effect of tree nuts on criteria of the metabolic syndrome ( MetS ) .
Serum lipid profiles in Japanese women and men during consumption of walnuts
Objective : To determine the serum cholesterol , apolipoproteins and LDL oxidizability in young Japanese women and men during walnut consumption and to evaluate its active principle . Design : Experimental study with a r and omized design .Subjects : Twenty healthy women and 20 healthy men . Interventions : Subjects were r and omly assigned to consume each of two mixed natural diets for 4 weeks in a cross-over design . Reference and walnut diets were design ed and the walnut diet had 12.5 % of the energy derived from walnuts ( 44–58 g/day ) . Results : The total cholesterol and serum apolipoprotein B concentrations , and the ratio of LDL cholesterol to HDL cholesterol was significantly lowered in women and men when fed on the walnut diet , than when on the reference diet ( P≤0.05 ) . The LDL cholesterol concentration was significantly lowered in women on the walnut diet ( 0.22 mmol/l , P=0.0008 ) , whereas this decrease was not significant in men ( 0.18 mmol/l , P=0.078 ) . The most prominent change in the fatty acid composition of the cholesteryl esters from serum after the walnut diet was an elevation of α-linolenic acid in women ( 76 % , P<0.001 ) and men ( 107 % , P<0.001 ) . This elevation was negatively correlated to the change in LDL cholesterol in women ( r=0.496 , P=0.019 ) and men ( r=0.326 , P=0.138 ) . The LDL oxidizability in women was not influenced by the diets ( P=0.19 ) . Conclusions : α-Linolenic acid in the walnut diet appears to be responsible for the lowering of LDL cholesterol in women . Sponsorship : Kyushu University ( Fukuoka , Japan ) and the California Walnut Commission ( California , USA )
There was no effect on waist circumference , high-density lipoprotein cholesterol or blood pressure with the direction of effect favouring tree nuts for waist circumference .
Pooled analyses show a MetS benefit of tree nuts through modest decreases in triglycerides and fasting blood glucose with no adverse effects on other criteria across nut types .
OBJECTIVE To provide a broader evidence summary to inform dietary guidelines of the effect of tree nuts on criteria of the metabolic syndrome ( MetS ) .