For studies of a similar design and which assessed the same outcomes in similar population groups , we report the potential for the combining of data across studies in systematic review s. CONCLUSIONS This scoping review has revealed the extensive evidence base for many outcomes which could be the focus of systematic review s exploring the health effects of conventional yogurt consumption
BACKGROUND The health effects of conventional yogurt have been investigated for over a century ; however , few systematic review s have been conducted to assess the extent of the health benefits of yogurt .
OBJECTIVE The aim of this scoping review was to assess the volume of available evidence on the health effects of conventional yogurt .
Effects of plant stanol esters supplied in low-fat yoghurt on serum lipids and lipoproteins, non-cholesterol sterols and fat soluble antioxidant concentrations.
Oil-based products enriched with plant stanol esters can lower low-density lipoprotein ( LDL ) cholesterol concentrations by 10 - 14 % . Effectiveness of low-fat products , however , has never been evaluated , although such products fit into a healthy diet . We therefore examined the effects of plant stanol esters emulsified into low-fat yoghurt ( 0.7 % fat ) on fasting concentrations of plasma lipids and lipid-soluble antioxidants , which may also change by plant stanol consumption . Sixty non-hypercholesterolemic subjects first consumed daily three cups ( 3 x 150 ml ) of placebo yoghurt for 3 weeks . For the next 4 weeks , 30 subjects continued with the placebo yoghurt , while the other 30 subjects received three cups of experimental yoghurt . Each cup provided 1 g of plant stanols ( 0.71 g sitostanol plus 0.29 g campestanol ) as its fatty acid ester . LDL cholesterol ( mean+/-S.D. ) increased by 0.06+/-0.21 mmol/l in the placebo group , but decreased by -0.34+/-0.30 mmol/l in the experimental group . The difference in changes between the two groups of 0.40 mmol or 13.7 % was highly significant ( P<0.001 ; 95 % confidence interval for the difference , (-)0.26 -(-)0.53 mmol/l ) . Effects were already maximal after 1 week . HDL cholesterol and triacylglycerol concentrations did not change . Total tocopherol levels increased by 1.43 micromol/mmol LDL cholesterol ( 14.0 % , P=0.015 ) . beta-carotene levels , however , decreased by -0.02 micromol/mmol LDL cholesterol ( -14.4 % , P=0.038 ) . Decreases in absolute beta-carotene concentrations were found in all apoB-containing lipoproteins . LDL-cholesterol st and ardised phytofluene levels decreased by 21.4+/-25.7 % ( P<0.001 ) , while other plasma carotenoid ( lutein/zeaxanthin , beta-cryptoxanthin , lycopene and alpha-carotene ) levels did not change significantly . We conclude that low-fat yoghurt enriched with plant stanol esters lowers within 1 week LDL cholesterol to the same extent as oil-based products . LDL-cholesterol st and ardised concentrations of tocopherol increased . The observed decrease in beta-carotene levels , as found in many other studies , appears not to be limited to the LDL fraction
For studies of a similar design and which assessed the same outcomes in similar population groups , we report the potential for the combining of data across studies in systematic review s. CONCLUSIONS This scoping review has revealed the extensive evidence base for many outcomes which could be the focus of systematic review s exploring the health effects of conventional yogurt consumption
BACKGROUND The health effects of conventional yogurt have been investigated for over a century ; however , few systematic review s have been conducted to assess the extent of the health benefits of yogurt .
OBJECTIVE The aim of this scoping review was to assess the volume of available evidence on the health effects of conventional yogurt .