Background Dietary culture affects people's cognition and attitudes toward nutrition, and it even dictates people's dietary behavior. This study aimed to assess the dietary-culture-related KAP of Chinese netizens during the corona virus disease 2019(COVID-19) pandemic. Methods A cross-sectional survey was conducted using an online KAP questionnaire in China. Volunteers were recruited at Southwest Medical University and were first trained to unify standards of distributing questionnaires. Participants were recruited by convenient- and snowball-sampling methods. Multiple regression analysis was used to analyze the influential factors. Results After 50 days of investigation, 3514 participants (40.6% men) were valid. The mean score of netizens’ nutrition knowledge was 3.9 ± 2.2 and the mean awareness rate was 31.7%. Women participants in the age group of 30–39 with higher education level had higher nutrition knowledge qualification rate. During the COVID-19 pandemic, the positive rate of attitude toward dietary-culture-related nutrition was 93.7%, and women netizens who had higher level of education and immigrated from other places had better attitudes. Moreover, the positive rate of dietary habits was 90.7%, and older women netizens had better dietary behavior. Conclusions Netizens’ knowledge of nutrition was poor, but their dietary habits and attitudes toward dietary-culture-related nutrition were generally positive, which was also a great progress for Chinese people.

Background Hyperuricemia poses a significant public health challenge on a global scale, with a concerning trend of affecting younger populations, while the rates of awareness and control remain suboptimal. The role of health literacy in influencing health outcomes is of utmost importance, and enhancing health literacy is helpful for patients in managing risk factors. Additionally, social support and socioeconomic position (SEP) have been identified as potential factors influencing health. However, the precise relationship between these factors and hyperuricemia remains uncertain. The study aims to investigate the status of health literacy among patients with hyperuricemia and explore the relationship between health literacy, social support, SEP, and serum uric acid. Methods A cross-sectional study was conducted among 349 participants with asymptomatic hyperuricemia in Luzhou of China. The research instrument included the Sociodemographics characteristics questionnaire, Health Literacy Management Scale (HeLMS), and Social Support Scale (SSRS). The construction of the SEP index was achieved through the application of principal component analysis. Univariate and hierarchical regression analyses were used to measure the association of health literacy, social support, SEP, and serum uric acid. Furthermore, structural equation modeling (SEM) was utilized to examine this association. Results (1) Most patients exhibited low health literacy (90.18 ± 15.11), and only 44.4% possess basic health literacy. (2) SEP was positively correlated with SUA (β = 4.086, P< 0.001), health literacy was negatively related to SUA level (β = -0.399, P < 0.001). There was no significant relationship between social support and SUA (β = 0.051, P= 1.085). (3) Health literacy mediates the association between SEP and serum uric acid (β = -0.490, 95% CI: -0.620 to -0.382). The direct effect of SEP on SUA and health literacy was 0.723 and 0.696, respectively and the total effect of SEP on SUA was 0.233. Conclusions The findings indicate a low level of health literacy among patients with AHU and suggest that health literacy may play a mediating role in the relationship between socioeconomic position (SEP) and serum uric acid (SUA) levels. Consequently, it is recommended that future initiatives prioritize health literacy and devise appropriate intervention strategies to enhance the self-management capabilities of patients with AHU.