Sefanadia Putri, Reni Indriyani, Riska Nur Suci Ayu, Asep Rusyana, Arie Nugroho
Background: Adolescence is a critical period for physical and cognitive development, yet research linking socio-economic factors, nutritional status, and brain health in Indonesian adolescents remains limited.
Objective: This study aimed to evaluate the associations between socioeconomic factors, consumption of fast food and sugary drinks, nutritional status, and brain health among high school students at SMA N 9 Bandar Lampung.
Methods: An analytical observational cross-sectional study was conducted involving 68 Grade X–XI students selected via simple random sampling. Data were collected via questionnaires assessing nutritional status, consumption patterns, nutrition knowledge, brain health, and family socioeconomic characteristics, and analyzed using Spearman’s correlation and logistic regression.
Results: Malnutrition status was associated with reduced combined consumption frequency (OR=0.178) and fast food frequency (OR=0.423). Nutrition knowledge significantly influenced nutritional status (OR=0.486). Socioeconomic factors, specifically pocket money, strongly influenced purchasing decisions.
Conclusion: Socioeconomic factors and nutrition knowledge are associated with consumption behaviors related to adolescents’ nutritional status and brain health. Holistic interventions involving nutrition education and financial access are required