Infant Diet Is Associated With BMI Later in Childhood: A Nation-Wide Mother-Child Cohort Study in Iceland (ICE-MCH)

Few studies have explored associations between indexes incorporating both breastfeeding and complementary feeding and future risk of overweight/obesity. The aim of this study was to explore associations between a previously developed Infant Diet Score (IDS; higher score reflecting better alignment with breastfeeding and complementary feeding guidelines in the first year of life), and the risk of overweight and/or obesity in childhood.

Citation:
Jonsdottir J, Thorisdottir B, Einarsdóttir K, Thorsdottir I. Infant Diet Is Associated With BMI Later in Childhood: A Nation-Wide Mother-Child Cohort Study in Iceland (ICE-MCH). Matern Child Nutr. 2026;22(1).

Keywords:
BMI for age; breastfeeding; child obesity; complementary feeding; dietary index; infant nutrition.

Abstract:
Few studies have explored associations between indexes incorporating both breastfeeding and complementary feeding and future risk of overweight/obesity. The aim of this study was to explore associations between a previously developed Infant Diet Score (IDS; higher score reflecting better alignment with breastfeeding and complementary feeding guidelines in the first year of life), and the risk of overweight and/or obesity in childhood.