The effect of high sucrose consumption on plasma Δ-9 desaturation index. The delta-9 desaturation index is calculated as the ratio of the concentration of oleic acid (18:1) to stearic acid (18:0). A) The delta-9 desaturation index for total 18:1 and 18:0 pools from hours 0–8 of the postprandial period. B) The delta-9 desaturation index for newly synthesized 18:1 and 18:0 pools from hours 1–8 of the postprandial period. The pattern of change from a high desaturation index to low is indicative of the increased SCD-1 activity following a high carbohydrate meal. Data are expressed as means ± SEM; n = 6. * indicates p < 0.036 at each time point for High Sucrose versus Control.