Title: trace nutrient Long Title: IUPAC Gold Book - trace nutrient DOI: 10.1351/goldbook.15107 Status: current Definition Substance required in very small quantities by a defined organism to maintain health. Notes 1) The quantities required for health and the species must be stated before application of this term has any meaning. 2) Use of the term is often misleading since it is meaningless unless accompanied by a statement of which organisms show a requirement for the nutrient and the amount required. Source - PAC, 2009, 81, 829. 'Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)' on page 959 (https://doi.org/10.1351/PAC-REC-08-07-09) Other Outputs - html: https://goldbook.iupac.org/terms/view/15107/html - json: https://goldbook.iupac.org/terms/view/15107/json - xml: https://goldbook.iupac.org/terms/view/15107/xml Citation: Citation: 'trace nutrient' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. 10.1351/goldbook.15107 License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International (https://creativecommons.org/licenses/by-sa/4.0/) for individual terms. Collection: If you are interested in licensing the Gold Book for commercial use, please contact the IUPAC Executive Director at executivedirector@iupac.org . Disclaimer: The International Union of Pure and Applied Chemistry (IUPAC) is continuously reviewing and, where needed, updating terms in the Compendium of Chemical Terminology (the IUPAC Gold Book). Users of these terms are encouraged to include the version of a term with its use and to check regularly for updates to term definitions that you are using. Accessed: 2026-05-18T00:32:53+00:00