Abnormal postprandial response to fat-loading challenge has been detected
in obese patients with normal TG levels. Guerci et al 4 found that the AUC for chylomicron
TG was similar between obese patients and normal-weight controls,
indicating adequate lipolytic activity; in contrast, the AUC for nonchylomicron
TG was significantly greater in obese patients compared with controls. However,
the differentiation of chylomicron subfractions requires sophisticated methods
not used in the present study