Fig. 1

Postprandial changes in respiratory quotient between lean and obese subjects by meals. a high-carbohydrate meal (0–240 min: P group = 0.045, time <0.001 and time × group = 0.047; 240–360 min: P group = 0.053, time <0.001 and time × group = 0.099); b high-fat meal (0–240 min: P group = 0.734, time = 0.050 and time × group = 0.482; 240–360 min: P group = 0.927, time = 0.293 and time × group = 0.802). Lean —, ●; obese ----, ○; * P < 0.05