Fats and oils are made up of \>90% triacylglycerol fat molecules which consist of a glycerol backbone to which 3 esterified fatty acids are attached. The positions of fatty acid attachment are referred to by stereospecific numbers, sn -1, -2 and -3. There is existing evidence to show that vegetable oils having unsaturated fatty acids in the sn-2 position with predominantly palmitic acid (16:0) or stearic acid (18:0) in the sn-1 and sn-3 positions of fat molecules do not raise serum cholesterol levels. These observations have come to be known as or explained by the "sn-2 hypothesis". New evidence have also emerged to show that saturated fatty acids (16:0, 18:0) in the sn-1 and -3 positions reduces fat deposition in a rat model. In this proposed study, the effects on the outcome measures investigated of three test fats \[namely palm olein IV64 (POP), virgin olive oil (OOO) and cocoa butter (POS)\], with oleic acid primarily at the sn-2 position but differing amounts of palmitic, stearic and oleic acids at the sn-1/sn-3 positions of the triglyceride molecule, are investigated
To investigate the effects of different dietary fats with primarily oleic acid in the sn-2 position on the cardiovascular risk profile in healthy Malaysian volunteers
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Masking
SINGLE
Enrollment
42
Each subject received a palm olein-based run in diet for 2 weeks, followed by random assignment test fat Palm Olein IV64 which was incorporated into daily snacks (\~50g of test fats, brownies (\~15g test fat each) for breakfast and 4 pieces cookies (\~5g test fat each) with low fat palm olein based background diet daily.
Each subject received a palm olein-based run in diet for 2 weeks, followed by random assignment test fat cocoa butter which was incorporated into daily snacks (\~50g of test fats, brownies (\~15g test fat each) for breakfast and 4 pieces cookies (\~5g test fat each) with low fat palm olein based background diet daily.
Each subject received a palm olein-based run in diet for 2 weeks, followed by random assignment test fat virgin olive oil which incorporated into daily snacks (\~50g of test fats, brownies (\~15g test fat each) for breakfast and 4 pieces cookies (\~5g test fat each) with low fat palm olein based background diet daily.
Changes of Ratio of total cholesterol to HDL cholesterol (TC:HDL)
analyzed enzymatically by Siemens Advia 2400 Chemistry Analyzer
Time frame: week 0 (baseline) and week 4
changes of serum HDL cholesterol
analyzed enzymatically by Siemens Advia 2400 Chemistry Analyzer
Time frame: week 0 (baseline) and week 4
changes of serum LDL cholesterol
analyzed enzymatically by Siemens Advia 2400 Chemistry Analyzer
Time frame: week 0 (baseline) and week 4
changes of serum Triacylglycerol (TAG)
analyzed enzymatically by Siemens Advia 2400 Chemistry Analyzer
Time frame: week 0 (baseline) and week 4
changes of serum non-esterified fatty acids (NEFA)
analysed by ELISA kits
Time frame: week 0 (baseline) and week 4
changes of serum LDL sub-fractions
analysed with LIPOPRINT System
Time frame: week 0 (baseline) and week 4
changes of serum Lp(a)
analyzed enzymatically by Siemens Advia 2400 Chemistry Analyzer
Time frame: week 0 (baseline) and week 4
changes of Blood pressure
measured by blood pressure meter
Time frame: week 0 (baseline) and week 4
Changes of body mass index (BMI)
measured by Tanita Segmental Body Fat Analysis
Time frame: week 0 (baseline) and week 4
changes of Waist circumference
Time frame: week 0 (baseline) and week 4
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