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Several organisations are associated with the IUNS. Click on the links below to learn more about these organisations:

IUNS has been a member of The International Science Council (ISC) since 1968.

The International Science Council (ISC) works at the global level to catalyse and convene scientific expertise, advice and influence on issues of major concern to both science and society.

The ISC has a growing global membership that brings together over 230 organizations, including international scientific unions and associations from natural and social sciences, and the humanities, and national and regional scientific organizations such as academies and research councils.
The ISC was created in 2018 as the result of a merger between the International Council for Science (ICSU) and the International Social Science Council (ISSC).

The World Health Organisation (WHO) are the directing and co-ordinating authority on international health within the United Nations (UN) system.
IUNS have collaborated with WHO on several publications.


The IAEA is the world’s centre for cooperation in the nuclear field and seeks to promote the safe, secure and peaceful use of nuclear technologies.

Proper nutrition is fundamental to health. The world is facing a double burden of malnutrition – undernutrition and obesity coexist, contributing to non-communicable diseases. Using nuclear techniques, nutrition and health professionals can develop and evaluate nutrition actions to combat all forms of malnutrition.