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The 22nd IUNS-ICN was scheduled to be held from September 14-19, 2021 in Tokyo, Japan.
In view of the worldwide spread of the COVID-19 pandemic, we had been carefully monitoring its impact.
Due to its developing situation and difficulties in travelling abroad, after much thought and deliberation, the Organizing Committee of 22nd IUNS-ICN has decided to postpone the congress to December 6-11, 2022.

This was a difficult decision to make; however, the health and safety of the participants is our highest priority.
Since the Congress has been postponed, the call for abstracts is temporarily suspended.
We will inform new important dates and any possible changes in due time.
Please check the official ICN website on, as all updates will be consistently posted therein.

Due to the postponement to December 6-11, 2022, the important dates have been changed as follows.
Abstract Submission: November 12, 2021 – March 18, 2022
Abstract Acceptance: Notice June 10, 2022
Presenter Registration: Deadline July 15, 2022

Early Bird June 6, 2022 – August 4, 2022
Regular August 5, 2022 – October 20, 2022
Late October 21, 2022 – November 21, 2022
Onsite December 6, 2022 – December 11, 2022

The website and Facebook addresses have been changed as follows, and the official Twitter page has opened.



It is my pleasure to announce that the 22nd International Congress of Nutrition (ICN) will be held in Tokyo, Japan, 14th – 19th September of 2021. ICN is the four-yearly meeting of the International Union of Nutritional Sciences (IUNS), the tenth of which was successfully held in Kyoto in 1975. Tokyo was selected as the host of IUNS-ICN2021 at the general assembly meeting of IUNS held during the 20th ICN in Granada, Spain.

Tokyo is the most innovative city in the world, boasting outstanding infrastructure, convenience, cleanliness, and safety. The Tokyo International Forum, the planned venue, is a state-of-the-art facility located in the centre of the city. As Chair of the Organizing Committee for the 22nd IUNS-ICN, I can assure you that you will benefit not only from the great scientific achievements of the congress itself but also from unique experiences of Japanese culture, history and various other entertainments. The secrets and appeal of the Japanese diet will of course also be of interest to the participants in the congress.

The world is faced with a variety of nutrition-related issues, including food shortages, malnutrition, population growth, over-nutrition, diversification of dietary habits, threats to food safety, and the aging of society. Japan has tackled all these issues over a relatively short period of time and has devised various methods to resolve them, thanks to the ingenuity and flexibility of the people of Japan.

The population of our planet is forecast to expand to 10 billion during this century. Nutrition has the power to provide health and happiness to people living today and to future generations as we head towards the 22nd century. Accordingly, we have chosen as the theme of the congress, “The Power of Nutrition: For the Smiles of 10 Billion People.” We hope that by bringing all of you from around the world together in Tokyo in 2021 we can engage in valuable discussions on nutritional issues. The congress will be an ideal opportunity for participants to reaffirm or rediscover their mission to help to realize good health and happiness for future generations.

I look forward to welcoming you at the 22nd IUNS-ICN in Tokyo in 2021.

Hisanori Kato, Ph.D.
Chair, Organizing Committee of 22nd IUNS-ICN