Infant growth anthropometric Z-score from 2 weeks to 1 year, with BMIC predicted by linear mixed models (model n = 35). Graphs depict the difference in the predicted growth lines for the mean ± 1 standard deviation BMIC as measured at 2 weeks for dyads with a male infant, the mean birth anthropometric Z-score, and the mean maternal BMI. Interaction effect of BMIC and time (months) on infant WFA (β = 0.00033, p < 0.001), infant LFA (β = 0.00015, p = 0.154), and infant WFL (β = 0.00029, p = 0.021). Abbreviations: weight-for-age Z-score (WFA), length-for-age Z-score (LFA), and weight-for-length Z-score (WFL); breast milk iodine concentration (BMIC).