Figure 1.

Caffeine intake altered the level of lipid composition in Caenorhabditis elegans. Fold change in fatty acids between the caffeine-free diet group (control, white bar) and the caffeine-fed group (black bar), as determined by gas chromatography. Fatty acids were extracted from 5000 adult animals for each group. The dotted lines indicate a relative difference of more than 2-fold compared to the control. Significant differences between groups (p-value) are shown in Supplementary Table S1. Error bars represent standard deviation (SD).