Digital food environments, food literacy, and sustainable eating among children in China: evidence from National Panel Data on supermarket availability and nutritional status

Children’s dietary behavior in China is increasingly shaped by digital food environments, yet how digital exposure interacts with physical food access and food literacy in relation to child nutrition remains unclear at a national scale. This study utilized a longitudinal province-year panel covering 31 mainland Chinese provinces from 2006 to 2025 (N = 620). Core variables—specifically the healt...