PENERAPAN EDUKASI GIZI TERHADAP KEBIASAAN SARAPAN DAN HASIL BELAJAR SISWA DI SMA NEGERI 1 SAUSU

This study aimed to examine the effect of nutrition education on students’ breakfast habits and learning
outcomes at SMA Negeri 1 Sausu, while also highlighting its role in promoting healthier breakfast behaviors among
students. The study employed a quantitative approach using a one-group pretest-posttest design. The participants
were 23 tenth-grade students selected through total sampling. Data were collected using questionnaires to assess
students’ breakfast habits before and after the intervention, as well as documentation of students’ learning
outcomes. Data were analyzed using descriptive quantitative analysis through mean scores, score improvement,
and N-gain values. The results showed that the mean breakfast habit score increased from 40.09 in the pretest to
48.43 in the posttest, with an N-gain of 0.14, which was categorized as low. In addition, the mean learning outcome
score increased from 77.30 before the intervention to 80.17 after the intervention, with an N-gain of 0.13, also
categorized as low. These findings indicate that nutrition education contributed positively to improvements in
students’ breakfast habits and learning outcomes, although the level of effectiveness remained low. Therefore,
nutrition education has the potential to serve as a promotive and preventive strategy for fostering healthy breakfast
behaviors and supporting academic improvement, provided that it is implemented continuously and supported by
both the family and the school environment
Keywords: Nutrition education; breakfast habits; learning outcomes; high school students