Inclusion Criteria:  Healthy toddlers 12-36 months of age with mild malnutrition will be defined by at least one of the following indicators:  Weight-for-length z-score between -1.0 and -1.9 for children less than 2 years of age using the WHO growth standards; or BMI z-score between -1 to -1.9 for children between 2 and 3 years of age using the CDC growth standards; or Middle upper-arm circumference (MUAC) z-scores between -1 to -1.9 using the WHO growth references; or Percentage of median ideal body weight of 80-89% (using the 50th percentile of the aforementioned growth standards).  Exclusion Criteria:  Toddlers currently on or with history of tube feeding or with chronic health conditions that influence eating (e.g., food allergies, genetic disorders or developmental disabilities, oral motor difficulties that require sensory or feeding therapy). Toddlers who were born at less than 34 weeks gestation, as they may have lingering feeding challenges. Toddlers with gastroesophageal reflux disease (GERD) requiring medications or hydrolyzed formula or any type of esophageal disorders will be excluded. Toddlers with a history of infant reflux will not be excluded. The PI will make this distinction after a detailed history and record review. Families who do not speak English or Spanish in the home. Toddlers with suspected malabsorption or conditions that increased metabolic demands such as congenital heart defects. Toddlers who have a diagnosed allergy to cow's milk.  The PI will use their clinical discretion to ascertain patient eligibility.