JAND Editor-in-Chief Linda Snetselaar, PhD, RDN, LD, FAND; Jillian Trabulsi, PhD, RD; and Jessica Decker, PhD, RD, discuss research and trends in the types of milk (human, infant formula, and other milk) fed to US infants and toddlers. They also discuss guidelines and what to look for when purchasing types of milk in the store.