REE response to coffee ingestion. Change in supine resting energy expenditure (mean ± SD) between two trials (broken line = F, solid line = JF) from pre to 3-hours following coffee ingestion. * = significant main effect for trial (p < 0.05). † = a significant main effect for gender (p < 0.01). ‡ = a significant interaction for trial and time point (p < 0.05).