The first 1,000 days describes the period from pre-pregnancy through age 2 years, and is increasingly recognized as a critical period for development of childhood obesity. The overall goal of this study is to develop and refine health messaging for future interventions among families living in Washington Heights, a low-income New York City neighborhood with high prevalence of childhood obesity. The proposed research will result in messages to promote healthy beverage intake during the first 1,000 days through various approaches that will be tested in future multi-sector and environmental interventions. Specific aims of this study are to: 1) quantify the associations of attitudes, purchasing behaviors, and consumption related to beverage intake during the first 1,000 days among families enrolled in New York Presbyterian Hospital’s Supplemental Nutrition Assistance Program for Women, Infants, and Children (NYPH-WIC), and 2) examine the acceptability of health messages targeting healthy beverage intake during the first 1,000 days. This study will use cross-sectional surveys of families during the first 1,000 days in NYPH-WIC and in-depth interviews of pregnant women and caretakers of children ago 0-2 years enrolled in WIC; WIC providers; and health care providers (obstetrics and pediatrics).