KIDFIT: Keeping Ideal Cardiovascular Health Family Intervention Trial

Adverse influences starting in utero may predestine an individual's long- term risk for developing cardiometabolic diseases. The Keeping Ideal CVH (cardiovascular health) Family Intervention Trial (KIDFIT) will test whether preschool-age children, born to overweight/obese (OW/OB (mothers who did or did not experience a diet and lifestyle intervention to reduce GWG: 1) demonstrate more favorable adiposity (body fat %), body mass index percentiles (BMI%), diet quality (DASH diet score), physical activity, and other CVH metrics at baseline according to antenatal intervention status; and 2) respond to an early childhood intervention targeting diet and lifestyle behaviors with improvement in these same adiposity and CVH metrics. We hypothesize children randomized to the KIDFIT diet and lifestyle intervention group at age 3-5 years, regardless of initial maternal antenatal group assignment, will demonstrate more favorable adiposity changes assessed by anthropometry (body fat %/sum of skinfolds) and a lower cumulative incidence of obesity after the 12-month intervention, as compared with the control group. Additionally, after 12 months of the KIDFIT Intervention, children will have more favorable blood pressure and blood lipids, better diet quality (as measured by the DASH-style diet score), increased physical activity levels, and more optimal sleep duration, without adverse effects on height, compared to the control group