A study found breast development now begins at an average age of 9 years and 10 months, a year earlier than a comparable 1991 study. Mercola connects early puberty to chemical exposure, citing earlier work on PBB-contaminated animal feed and on phthalates in Puerto Rican girls.
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Nutrition
Dietary Protein Affects Timing of Puberty
Tracking protein intake in 112 German children, researchers found those eating the most animal protein at ages 5 to 6 began their pubertal growth spurt 0.6 years earlier, with similar patterns for menarche and voice break. Higher vegetable protein intake tracked with later timing.
Lifestyle
11 year old gives birth to baby boy: What lesson can we learn?
An 11-year-old girl gave birth to a boy. The writer argues a girl that age is not ready for motherhood and urges parents to serve more vegetables and grains and less meat and dairy, citing a study that tied milk drinking to higher IGF-1. An editor's note calls the piece personal opinion.
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