Current evidence on the effects of palm oil consumption on biomarkers of glucose metabolism is poor and limited to only healthy participants .
We conclude that little or no additional benefit will be obtained by replacing palm oil with other oils rich in mono or polyunsaturated fatty acids for changes in glucose metabolism
INTRODUCTION Vegetable oil is an important source of fatty acids , and as palm oil being the highest consumed vegetable oil in many countries , its high saturated fatty acid content has led many concerns on cardiometabolic health .
Dietary fatty acids has also been linked to affect glucose metabolism and insulin sensitivity .
This systematic review is aim ed at critically evaluating the available evidence on the association of palm oil with the biomarkers of glucose metabolism as compared to other vegetable oils .
Effects of diets enriched in saturated (palmitic), monounsaturated (oleic), or trans (elaidic) fatty acids on insulin sensitivity and substrate oxidation in healthy adults.
OBJECTIVE Diets high in total and saturated fat are associated with insulin resistance . This study examined the effects of feeding monounsaturated , saturated , and trans fatty acids on insulin action in healthy adults . RESEARCH DESIGN AND METHODS A r and omized , double-blind , crossover study was conducted comparing three controlled 4-week diets ( 57 % carbohydrate , 28 % fat , and 15 % protein ) enriched with different fatty acids in 25 healthy men and women . The monounsaturated fat diet ( M ) had 9 % of energy as C18:1cis ( oleic acid ) . The saturated fat diet ( S ) had 9 % of energy as palmitic acid , and the trans fatty acid diet ( T ) had 9 % as C18:1trans . Body weight was kept constant throughout the study . After each diet period , insulin pulsatile secretion , insulin sensitivity index ( S(I ) ) by the minimal model method , serum lipids , and fat oxidation by indirect calorimetry were measured . RESULTS Mean S(I ) for the M , S , and T diets was 3.44 + /- 0.26 , 3.20 + /- 0.26 , and 3.40 + /- 0.26 x 10(-4 ) min(-1 ) . microU(-1 ) . ml(-1 ) , respectively ( NS ) . S(I ) decreased by 24 % on the S versus M diet in overweight subjects but was unchanged in lean subjects ( NS ) . Insulin secretion was unaffected by diet , whereas total and HDL cholesterol increased significantly on the S diet . Subjects oxidized the least fat on the M diet ( 26.0 + /- 1.5 g/day ) and the most fat on the T diet ( 31.4 + /- 1.5 g/day ) ( P = 0.02 ) . CONCLUSIONS Dietary fatty acid composition significantly influenced fat oxidation but did not impact insulin sensitivity or secretion in lean individuals . Overweight individuals were more susceptible to developing insulin resistance on high-saturated fat diets
Current evidence on the effects of palm oil consumption on biomarkers of glucose metabolism is poor and limited to only healthy participants .
We conclude that little or no additional benefit will be obtained by replacing palm oil with other oils rich in mono or polyunsaturated fatty acids for changes in glucose metabolism
INTRODUCTION Vegetable oil is an important source of fatty acids , and as palm oil being the highest consumed vegetable oil in many countries , its high saturated fatty acid content has led many concerns on cardiometabolic health .
Dietary fatty acids has also been linked to affect glucose metabolism and insulin sensitivity .
This systematic review is aim ed at critically evaluating the available evidence on the association of palm oil with the biomarkers of glucose metabolism as compared to other vegetable oils .