BPA Is Linked to Early Puberty in Girls
NonToxCo Research
Science & Safety Team · 5/5/2026
Girls with higher BPA exposure had 4.45 times greater odds of early puberty onset. Every 1 microgram per liter increase in urinary BPA was associated with a 14% jump in risk. This is from a 2026 meta-analysis covering 5,549 children.
What early puberty means
Precocious puberty means breast development before age 8 in girls, or similar changes before age 9 in boys. It's been rising globally. A 2026 review in Frontiers in Public Health pooled data from nine studies and found a consistent pattern: more BPA exposure, earlier puberty in girls.
The association was stronger in studies using the most precise testing methods (LC-MS/MS). It was also stronger in girls than boys. Evidence in boys was limited and inconclusive, but the girls' data was consistent across multiple studies and countries.
Where kids get BPA
BPA is in polycarbonate plastic, food can linings, and thermal receipt paper. Children pick it up through food contact, toys, and baby products made before stricter regulations. "BPA-free" products often use BPS or BPF, which may carry similar hormonal effects.
For baby feeding, glass bottles eliminate this exposure entirely. For food storage, glass or stainless steel removes the variable. Browse glass baby bottles and glass food storage to make the swap.
Source: Bin-Abbas B, Jabari MA. (2026). Frontiers in Public Health.