Figure 2
From: Onset of the Thermic Effect of Feeding (TEF): a randomized cross-over trial
Metabolic rate is shown as RMR subtracted from TEF (Δml O2 min-1) in 1-minute intervals for a 1255 kJ, high PRO liquid meal. The onset of TEF was found to occur at 8.6 ± 5.2 minutes for the 5% increase and 16.7 ± 6.7 minutes for the 10% increase. The large standard deviation for the initial data point is likely the result of the 2-minute consumption period where the ventilated hood was removed, subjects sat upright and the drink was ingested.