The aim of this report was to evaluate a salt-reduction project conducted by a local government in collaboration with a supermarket, including changes in awareness of store employees during the project process. The Kamo Public Health and Welfare Center of Shizuoka Prefecture collaborated with the town of Matsuzaki, which is under its jurisdiction, and implemented the following initiatives with the cooperation of a supermarket over 6 months: installation of a wagon displaying low-sodium foods, as well as campaigns and in-store announcements promoting awareness of a low-sodium diet and sodium excretion. As part of the project evaluation, surveys were conducted to collect data on the sales volume of low-sodium foods before and after the start of the salt-reduction project, as well as with store employees and key stakeholders. The project staff consisted of 1–2 people each at the public health and welfare center and the town under its jurisdiction, and 6 at the supermarket. The mean change in sales volume of low-sodium foods for all 9 products evaluated was 107.7%, with statistically significant increases for 7 products, excluding special sales products, and 4 private-label products. Of the 51 store employees, 17 (33.3%) improved their health awareness, and key stakeholders requested further development of the initiatives. There were no effects on the stores that affected normal operations, indicating the benefits of inter-organizational collaboration, including government agencies, private companies, and community organizations.
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