Indirect calorimetry analyses. Comparison of diets HFP, HFL and HFPS N = 7-8 mice per group. Rates and averaged values of energy expenditure (A, B), fatty acid oxidation (C, D), carbohydrate oxidation (E, F) and Respiratory Exchange Rates (G, H) over a period of 2.5 days and 2.5 nights. Night periods are indicated by the black bars on the x-axis of the line graphs. In the line graphs, solid black lines represent the HFP group, solid grey lines the HFL group and the dotted grey lines the HFPS group. In the bar graphs, nocturnal versus diurnal averaged values are indicted with, respectively, N and D. * = p < 0.05 for the comparison with the equivalent period of the day of HFP fed mice.