Velle-Forbord V, et al. - Researchers performed a longitudinal population-based cohort study at Nord-Trøndelag county, Norway, to assess effects of breastfeeding (BF) on long-term maternal metabolic health from effects of pre-pregnant metabolic health on BF duration and long-term metabolic health. Women with a first live-born baby (1987–2008) participating in the Nord-Trøndelag Health Study (HUNT). Analysis of a total of 1403 women was done with a median follow-up of 12 years (interquartile range 11–22). They noted an inverse association of pre-pregnant waist circumference and heart rate with BF duration. A u-shaped correlation-pattern was observed between pre-pregnant body mass index (BMI) and BF duration. Similar between-group differences in metabolic health parameters were evident at baseline and at follow-up, which indicates that mean change in metabolic health parameters was similar across BF groups. These findings suggest no influence of breastfeeding but of good pre-pregnant metabolic health on long-term maternal metabolic health.