Pooled analyses showed that oat β-glucan has a lowering effect on LDL-cholesterol , non-HDL-cholesterol and apoB. Inclusion of oat-containing foods may be a strategy for achieving targets in CVD reduction
Oats are a rich source of β-glucan , a viscous , soluble fibre recognised for its cholesterol-lowering properties , and are associated with reduced risk of CVD .
Our objective was to conduct a systematic review and meta- analysis of r and omised-controlled trials ( RCT ) investigating the cholesterol-lowering potential of oat β-glucan on LDL-cholesterol , non-HDL-cholesterol and apoB for the risk reduction of CVD .
Oat-derived β-Glucan Significantly Improves HDLC and Diminishes LDLC and Non-HDL Cholesterol in Overweight Individuals With Mild Hypercholesterolemia
Objective : To investigate the effect of bread formulated with 6 g of β-glucan ( oat soluble fiber ) on serum lipids in overweight normotensive subjects with mild to moderate hypercholesterolemia . Design : Thirty-eight male subjects [ mean age 59.8 ± 0.6 yr , mean body mass index ( BMI ) 28.3 ± 0.6 kg/m2 ] who were eligible for the study ate an isocaloric diet for a 1-week period . They were then divided into 2 groups : group A ( n = 19 ) , who were maintained on American Heart Association ( AHA ) Step II diet , including whole wheat bread , and group B ( n = 19 ) , who were maintained on AHA Step II diet containing high levels of monounsaturated fatty acids plus bread containing 6 g of β-glucan ( Nutrim-OB ) for 8 weeks . Plasma lipids and glucose were measured at baseline and after weeks 8 in all subjects . All subjects were advised to walk for 60 minutes every day . Results : There was a significant increase ( ↑27.8 % ) in plasma high density lipoprotein ( HDL ) cholesterol in the β-glucan group ( group A ) from 39.4 ± 2.0 to 49.5 ± 2.1 mg/dL ( P < 0.001 ) , but there was no change in group B. There was a significant reduction in total cholesterol in the 2 groups to approximately the same extent : group A , from 232.8 ± 2.7 mg/dL to 202.7 ± 6.7 mg/dL ; P < 0.001 ; and group B , from 231.8 ± 4.3 mg/dL to 194.2 ± 4.3 mg dL ; P < 0.001 . Plasma low density lipoprotein ( LDL ) cholesterol also decreased significantly in the two groups : group A , from 160.3 ± 2.8 mg/dL to 133.2 ± 5.4 mg/dL ; P < 0.001 ; group B , from 167.9 ± 4.3 mg/dL to 120.9 ± 4.3 mg/dL ; P < 0.001 ; however , the β-glucan fortified diet was significantly more effective ( ↓27.3 % vs. ↓16.8 % ; P < 0.04 ) . There was a small and insignificant reduction in plasma very LDL ( VLDL ) cholesterol and triglycerides in the two groups . Similarly , non-HDL cholesterol levels were also decreased , with β-glucan diet producing significantly higher effect ( ↓24.5 % vs. ↓16.1 % ; P < 0.04 ) . The β-glucan diet also produced higher reduction in total cholesterol/HDL cholesterol ratio ( ↓33.3 % vs. ↓8.4 % ; P < 0.003 ) and LDL cholesterol/HDL cholesterol ratio ( ↓42.1 % vs. ↓13.3 % ; P < 0.001 ) than the diet without β-glucan . The β-glucan diet also decreased fasting plasma glucose ( P < 0.4 ) , whereas the other diet had no effect . Interestingly , both diets reduced body weight and BMI significantly , with β-glucan diet having a greater effect . Conclusions : Six grams of β-glucan from oats added to the AHA Step II diet and moderate physical activity improved lipid profile and caused a decrease in weight and , thus , reduced the risk of cardiovascular events in overweight male individuals with mild to moderate hypercholesterolemia . The diet with added β-glucan was well accepted and tolerated
Pooled analyses showed that oat β-glucan has a lowering effect on LDL-cholesterol , non-HDL-cholesterol and apoB. Inclusion of oat-containing foods may be a strategy for achieving targets in CVD reduction
Oats are a rich source of β-glucan , a viscous , soluble fibre recognised for its cholesterol-lowering properties , and are associated with reduced risk of CVD .
Our objective was to conduct a systematic review and meta- analysis of r and omised-controlled trials ( RCT ) investigating the cholesterol-lowering potential of oat β-glucan on LDL-cholesterol , non-HDL-cholesterol and apoB for the risk reduction of CVD .