Introduction: The early onset of menarche has been linked to various chronic conditions, yet limited research explores the role of dietary patterns in influencing menarche timing. This study examines the association between dietary habits and menarche onset in high school girls, to determine whether pre-menarche dietary patterns are prospectively linked to the onset of menarche.

Methods: A descriptive survey was conducted among 150 high school girls at selected Higher Secondary Schools, selected via convenience sampling. Data on dietary habits before menarche, including frequency of consumption of meat, dairy, eggs, and fast foods, were collected.

Results: Most participants were aged 13, with menarche commonly occurring at age 12. The majority reported occasional weekly meat intake, daily dairy consumption, and occasional weekly egg and monthly fast-food intake. Statistical analysis indicated a positive correlation between dietary patterns and menarche timing, consistent with studies suggesting that diet quality, particularly protein and dairy intake, can influence puberty timing.

Discussion: Findings align with recent studies showing that higher intake of animal protein and dairy is associated with earlier menarche, potentially due to growth-promoting hormones. These results underscore the need for monitoring dietary habits among adolescents.

Conclusion: Prioritizing adolescent health, particularly for girls, is essential for policymakers and parents. Awareness of the potential impact of diet on puberty timing can guide healthier dietary choices for young girls.