Dietary protein intake throughout childhood is associated with the timing of puberty.

@article{Gnther2010DietaryPI,
  title={Dietary protein intake throughout childhood is associated with the timing of puberty.},
  author={Anke L. B. G{\"u}nther and Nadina Karaolis-Danckert and Anja Kroke and Thomas Remer and Anette E Buyken},
  journal={The Journal of nutrition},
  year={2010},
  volume={140 3},
  pages={
          565-71
        }
}
Early puberty onset is associated with hormone-related cancers, but whether diet in childhood influences pubertal timing is controversial. We examined the association of protein intake in early and mid-childhood with the ages at take-off of the pubertal growth spurt (ATO), peak height velocity (APHV), and menarche in girls and voice break in boys using data from the longitudinal Dortmund Nutritional and Anthropometric Longitudinally Designed Study. Among participants who provided 3-d weighed… 
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The data suggested a later puberty onset and later timing of progressed puberty stages in children with a high diet quality, which were independent of pre-pubertal body fat.

Longitudinal associations between prepubertal childhood total energy and macronutrient intakes and subsequent puberty timing in UK boys and girls

Habitual total energy intakes in children, and protein intakes in girls, are suggested as potential modifiable determinants of puberty timing.

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It is suggested that both childhood diet and growth potential/growth contribute to earlier pubertal timing and taller attained height in males, supporting roles of these factors in PCa development.

Prepubertal adrenarchal androgens and animal protein intake independently and differentially influence pubertal timing.

A higher animal protein intake may be involved in an earlier attainment of ATO and APHV, whereas a more intensive adrenarchal process may precipitate a shorter pubertal growth spurt and a notably earlier onset of breast and genital development in girls and boys, respectively.

Intake of Dairy Products, Calcium, Magnesium, and Phosphorus in Childhood and Age at Menarche in the Tehran Lipid and Glucose Study

Pre-pubertal intake of milk, but not cheese and yogurt, may hasten age at menarche, and the relationship of Ca, Mg, and P with menarChe remained after further adjustment for height Z-score at baseline, whereas the association between milk and cheese intakes became non-significant.

Nutrient Intake through Childhood and Early Menarche Onset in Girls: Systematic Review and Meta-Analysis

Assessment of the association between nutrient intake in childhood and EMO risk in healthy girls found that adherence to a high intake of animal proteins-, iron- and PUFA-rich food diet makes girls more likely to have EMO, while a high Intake of fiber- and MUFA- rich foods may protect girls from EMO.

Lower adherence to a prudent dietary pattern is associated with earlier age at menarche in adolescents from the Growth and Obesity Chilean Cohort Study

The results suggest that healthier dietary patterns during puberty might be associated with menarche timing, and further studies are required to confirm this result and to clarify the association between diet and puberty.

New insights into the association of mid-childhood macronutrient intake to pubertal development in adolescence using nutritional geometry.

A role of non-protein macronutrients in facilitating female maturation is suggested, corroborating feeding and reproductive behaviour patterns observed in earlier NG studies of primates and advancing understanding of how nutrient balance shapes human development and health.
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