Recovery of BMD after pregnancy and breastfeeding-a 10-yr prospective observational study of 25-yr-old women.

ABSTRACT: Pregnancy and lactation require large amounts of calcium, potentially depleting the young-adult bone. This study investigated BMD and fluctuations of BMD resulting from parity and lactation in the PEAK-25 cohort, a prospective observational study of women all aged 25 at inclusion and 35 at follow-up. The analyses used women who were nulliparous at baseline and parous (n = 573) or nulliparous (n = 177) 10 yr later. Parity, regardless of number of pregnancies, had no negative impact; indeed, spine BMD at age 35 was higher (2.1%; p = .043). Likewise, BMD did not differ in women who breastfed, were nonlactating or nulliparous. Even the cumulative duration of breastfeeding did not make a difference. Overall, regardless of parity, in the cohort, by age 35 BMD was already decreasing, with overall

SUBMITTER: Egund L 

PROVIDER: S-EPMC12685719 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature