This service analyzes fatty acids, which are critical for energy, cell membrane structure, and signaling. It offers GC/MS-based untargeted analysis for fatty acids, with a current library that can be expanded upon request if authentic standards are available. The service can provide ratios of fatty acids to internal standards, and absolute quantification can be performed by special request. Saponification allows for full fatty acid analysis, distinguishing from generally lower levels of free fatty acids.