Ultra-processed Food Reducing Intervention and Continuous Glucose Monitoring

"All participants will be asked to visit the study site after the 10-day baseline monitoring period. They will receive a 30-minute nutrition education focusing on reducing UPF intake; and personalized counselling session based on their dietary intake observed during the baseline monitoring period.~Participants allocated to the intervention group will receive nutrition education and personalized counselling aimed at reducing ultra-processed food (UPF) intake by encouraging the substitution of UPFs with unprocessed/minimally processed foods, thereby improving overall diet quality. Participants will be educated on the definition of UPFs, how to identify them, practical strategies for reducing UPF intake, UPF-reducing recipes, and the associations between UPF intake and health outcomes. The content related to UPFs was developed based on previous studies exploring the health effects of UPF intake, while the content on diet quality was based on the 2020 Korean Dietary Reference Intakes."

All participants will be asked to visit the study site after the 10-day baseline monitoring period. Participants in the control group will receive a conventional nutrient-based education and personalized diet counseling developed based on the 2020 Korean Dietary Reference Intakes.