The companies announced the first meta-analysis to demonstrate the association between fish-eating habits and all-cause mortality risk in Japanese people. The findings were published in the electronic edition of the European Journal of Clinical Nutrition dated 23 October 2026.
Nissui, one of Japan’s leading seafood companies, and the National Institute of Health and Nutrition jointly examined the possibility that people who eat more fish may have a lower all-cause mortality risk, using a systematic review and meta-analysis that comprehensively examined previously published academic papers. The results were presented as the first meta-analysis conducted on Japanese people.
The study examined the relationship between seafood consumption habits and mortality risk among Japanese people, evaluating it by combining two research methods to enhance reliability. The research group sought to substantiate the health benefits of fish consumption by drawing conclusions from the body of previous research.
The study also addressed trends in annual seafood consumption among Japanese people, reporting that consumption had declined from its peak of 40.2 kg in fiscal 2001 to about half that level in fiscal 2023. Going forward, the group plans to continue its research with the aim of scientifically establishing an appropriate amount of fish consumption for Japanese people.
The findings were reported as having been published in the electronic edition of the European Journal of Clinical Nutrition, together with an explanation from the National Institute of Health and Nutrition. The objective is to apply insights into fish consumption habits and health maintenance to improving the diets of people living in Japan.