Table 2 Factors affecting the postprandial response to a test meal (summarized by Parks, 2001)

From: Erratum: Methodology for studying postprandial lipid metabolism

Characteristics of the test meal

Effect on triglyceride (TAG) response

Increase in fat content of meal

Increases TAG AUC

Alcohol consumption before the meal, and with the meal

Increases TAG AUC

Polyunsaturated fatty acid composition of meal

Increases postprandial peak TAG

Cholesterol addition to meal

Delays time to return to baseline TAG concentration

Fiber addition

Generally decreases the TAG response

Palatability

Butter increases or decreases the TAG response

Ratio of fat to protein and carbohydrate

Addition of glucose to meal increases TAG AUC

Patient characteristics that alter the response

 Baseline TAG concentration

Higher fasting concentrations lead to higher postprandial TAG

 Lipoprotein phenotype

Phenotypes with higher baseline TAG concentrations are associated with higher postprandial TAG. CAD patients with apoE2/E3 have significantly increased TAG AUC

 Age of patient

Older patients have higher TAG concentrations, but could be simply an effect of higher baseline TAG

 Hydration status

Dehydration causes blood concentrations to be higher

 Time of last exercise bout

Recent exercise reduces the postprandial response

 Time of day test is administered

Late-night testing shows delayed return to baseline