The Effect of Edible Lipids on Atherogenic Index of Plasma: Results From RaNCD Cohort Study

Abstract

Background: The amount and type of lipids consumed has a great impact on serum lipid profile and risk of cardiovascular diseases (CVDs). A novel index named atherogenic index of plasma (AIP) is better predictors of CVD risk factors than lipids alone. This study aimed to investigate the effect of edible oils on AIP. Methods: This cross-sectional study conducted on preliminary phase of Ravansar Non-Communicable Disease (RaNCD) cohort study. The amount of consumption of edible lipids was determined based on validated Food Frequency Questionnaire (FFQ). Lipid profiles including triglyceride (TG), and lipoprotein cholesterol (HDL-C) were measured, and AIP was calculated as log10 (TG/HDL-C).Results: A total of 9996 individuals, 4738(47.4%) were male. The mean of AIP was 0.98±0.6 (range from -1.73 to 4.15) that in females (0.97 ± 0.6) was lower than males (1.10 ± 0.6). After controlling for confounding and affecting variables, the AIP index decreased with increasing consumption of a local oil named Kermanshahi oil [β(CI 95% ): -0.006(-0.008, -0.003)], butter[β(CI 95% ): -0.008(-0.011, -0.005)] and not statistically significant decrease with Hydrogenated or partial hydrogenated oil [β(CI 95% ): -0.008(-0.001, 0.001)] but the AIP index increased with un-hydrogenated oil [β(CI 95% ): 0.001(-0.001, 0.001)]Conclusion: Kermanshahi oil and butter have decreasing effect on AIP, the effect of margarine was neutral, hydrogenated vegetable oil has trace decreasing effect whereas un-hydrogenated vegetable oil has increasing effect on it. So, consumption of Kermanshahi oil may be associated with lower cardiovascular risk.