2026 Groningen semantic metabolomics ELIXIR workshop report

This document reports on the conclusions of the workshop ‘2026 Groningen Semantic Metabolomics’, held the 16 and 17th February 2026 in Groningen, Netherlands. The workshop brought together around 30 researchers, developers, and data managers from 8 countries (NL, DE, UK, CZ, FR, ES, BE, USA) to discuss and advance the state of reproducible, interoperable, and FAIR metabolomics. The meeting was also the first major milestone meeting of the ELIXIR Implementation study “Next level of reproducible, comparable and integrable metabolomics (RCI-M)“. The workshop highlighted both new and established approaches for semantic modelling, data harmonisation, and metadata standards supporting integrative multi-omics research. It was great to see the participants with diverse backgrounds engaged in discussions, and compare, for example, handling of identification which differs between metabolomics and proteomics, or the different state of metadata commonly found in, say, biomedical research or biodiversity research.