OBJECTIVES: to investigate if breast feeding has a protective effect against overweight in preschool age. METHODS: cross-sectional study with 409 children, two to six years old, 221 boys and 188 girls, in Recife. The exposition was exclusive breast feeding for less than four months. The outcome was overweight, defined as body mass index (BMI) by age equal or above the 85th percentile. RESULTS: among the 409 children, 11.5% were never breastfed. Mean breast feeding duration was 3.97 months. Overweight prevalence was 18.6%. Overweight was more prevalent among children exclusively breastfed for less than four months (22.5%) than for those breastfed for four months or longer (13.5%) (p = 0.03). CONCLUSIONS: in our study, breast feeding had a protective effect against overweight at preschool age.
Obesity; Breast feeding; Child
