Wing RR, Russell GB, Tate DF, et al. - In the present study, the researchers described young adults who experienced significant weight gains (> 10%) over 3 years in a weight gain prevention program. They used secondary data analysis from the Study of Novel Approaches to Weight Gain Prevention (SNAP), a randomized trial comparing two self-regulation interventions and a control arm in young adults (18-35 years; BMI 21-30.9 kg/m²). Large Gainers (≥ 10% of their body weight; n = 48), Small Gainers (2.6%-9.9%; n = 149), and Weight Stable participants (± 2.5%; n = 143) were evaluated on measurements influencing weight gain. Differences in weight gain among the three groups by year 1 were significant and increased thereafter. Large Gainers (representing approximately 10% of candidates) could be detected early due to greater weight problems at baseline and lower use of weight gain prevention strategies.