Body weight, energy intake, metabolic efficiency, baseline levels of glucose and insulin, and the baseline insulin/glucose
ratio in female C57BL/6J mice given a high-fat diet or a normal diet for 12 months. Ten different experimental series with
a total of ∼500 mice were included in the figures. The mice were 4 weeks old at the start of the experiment. Data are means
± SEM. Linear regressions are also estimated.