Abbreviations
α1-acid glycoproteinconfidence intervalfat-free massfat-free mass indexfat massfat mass indexheight-for-age z-scoreidentification number for participantsinsulin-like growth factor-1interquartile rangekilohertzintention-to-treatlipid-based nutrient supplementmilk proteinmid-upper arm circumferencestandard deviationUniversity of Copenhagenwater, sanitation, and hygieneweight-for-age z-scoreWorld Health Organizationweight-for-height z-scorewhey permeate