The overall goal of this study is to understand how common conditions in childhood develop and if by providing specific health education and resources to parents/caregivers we can promote healthy development. This study will provide information and instruction on several aspects of infant care including, sleep, nutrition, building a healthy relationship with your baby, and healthy screen time use.

This study is a randomized controlled trial that will recruit parents/caregivers and infants infants living in the Greater Chicago area . The study will follow these infants until they are three years old.

The intervention arm will receive education about nutrition, resources, and specific instructions on feeding and caring for their infants. The control arm will receive education about infant development and helpful tips about infant sleep, screen time, and building healthy relationships. In addition, all caregivers will be asked to fill out surveys and come to research visits during the study period. There will be a total of 4 study visits during the three years of the study. There will be optional blood, stool, and skin testing of the child at each study visit. Two visits will take place during the first year of life, followed by visits around the child's 2nd and 3rd birthdays.

Inclusion Criteria:

• Parent/guardian(s) must understand and provide informed consent
• Infant <26 weeks of age at enrollment
• Willing to be randomized to either intervention or control
• In good general health as evidenced by medical history
• Stated willingness to comply with all study procedures and availability for the duration of the study
• Child assigned male or female sex at birth

Exclusion Criteria:

• Infant completed less than 28 weeks gestation
• Co-morbid medical diagnoses that would prevent caregivers from initiating solid foods per protocol, such as dysphagia, chronic aspiration, malformations, etc.
• Co-morbid medical diagnoses that would require specialized diet/nutritional needs, such as congenital heart disease, genetic/metabolic disorders, malignancy, etc.
• Caregivers who express unwillingness to introduce peanut, milk, egg, or cashew
• Caregivers who cannot provide informed consent in English or Spanish
• Parents planning to move away from study sites before child is 12 months of age
• Investigator or designee considers that the participant or parent/guardian would be unsuitable for inclusion in the study
• Infant with a sibling enrolled in the study

We plan to share deidentified, limited data sets and corresponding analytic code with other researchers following the publication of the study data. The protocol, Statistical Analysis Plan, and Informed Consent Forms will also be published online as supplemental appendices and will be made available to other researchers upon request.

Data and supporting information will be available indefinitely upon their publication.

Published study datasets will be publicly available.

Requests for unpublished data will be reviewed by the PI and advisory board and approved if deemed to have scientific merit.