Evaluation of the Nutritional Contribution of Snacks in Korean Adults - Data from Korea National Health and Nutrition Examination Survey 2023 -
This study investigated the role of snack consumption in daily nutrient intake among Korean adults. Data from The Korea National Health and Nutrition Examination Survey (KNHANES) 2023 were analyzed, involving 4,918 adults, consuming 2,118 men (43.1%) and 2,800 women (56.9%). The analysis assessed daily energy intake from snacks and its percentage of total energy, categorized by sex, age, income, and BMI, using multiple regression to explore associations. On average, 18.8% of daily energy intake, with men at 17.3% and women at 20.7%. Women had higher energy contributions for major nutrients. Snack energy contributions were significantly influenced by sex and age, but not by income or BMI. Young adults (ages 19—29) had the highest contribution at 21.1%, while adults aged 50—64 had the lowest at 17.5%. Time-of-day analysis revealed that 22.7% of snack energy was consumed in the evening (18:00—20:59) and 22.6% at night (21:00 onward). The most commonly consumed snacks were coffee (23.8%) and fruit (20.3%). These findings emphasize that snacks are a significant source of energy and nutrients, highlighting the need for sexand age-specific nutritional interventions that consider snack type, timing, and quality.