 The study found that the average daily seintake of 3 to 5-year-old Japanese children was 51.5 g a day, which is lower than the recommended dietary allowance and tolerable upper intake level set by the Dietary Reference Intakes for Japanese, 2015. However, the study also showed that some children had higher seintakes, suggesting that there may be a need for further research into the potential health benefits of se-supplementation in this age group. This article was authored by Yoshitokanokamura, Michiko Fukushima, Siko Hoshi, and others.