Guest post from Mark Viant, on the changes in standards and reporting for metabolomics data. Mark is Professor of Metabolomics in the School of Biosciences at the University of Birmingham, UK, and Director of both the national NERC Biomolecular Analysis Facility – Metabolomics and the Phenome Centre Birmingham. His research interests encompass the development of optimised analytical and computational workflows for high-throughput mass spectrometry based metabolomics and the application of these technologies to investigate the metabolic pathways underlying toxicity and adverse outcome pathways.