Assessment of nutrient and food intake
Nutrient and food intakes were determined with a dietary record for a total of 3 days (2 weekdays and 1 weekend day) at baseline and at the 3- and 6-month follow-ups. The dietary records submitted by the subjects were reviewed by a clinical dietitian on the day of the visit to ensure accuracy. The nutrient analysis was performed using the Computer Aided Nutritional Analysis Program (CAN-Pro) 5.0 (web version; The Korean Nutrition Society, Korea).Consumed foods were classified into 23 food groups according to the 2020 Dietary Reference Intakes for Koreans [