Lipidomics is a branch of metabolomics that involves the comprehensive analysis and study of lipids within an organism. It involves identifying and quantifying all the lipids present in a biological sample, such as cells, tissues, or biofluids, and studying their roles in various biological processes. Lipids play important roles in cellular structure, energy storage, cell signaling, and many other biological functions, and studying lipidomics can provide valuable insights into the mechanisms of various diseases and conditions. Lipidomics techniques typically involve mass spectrometry, chromatography, and bioinformatics analysis to identify and characterize the complex mixture of lipids in biological samples.