Attention deficit hyperactivity disorder (ADHD) is more recently being recognized as a lifetime disorder that continues to affect individuals into their adult lives. Recent research studies have found connections between ADHD and overweight/obesity. The current study was designed to further explore these relationships and better understand the connections between these two constructs among 340 college students. It was hypothesized that the ADHD symptoms (i.e., inattention and impulsivity) would positively predict depressive symptoms, which in turn would predict emotional/binge eating and lead to overweight/obesity. Additionally, it was hypothesized that impulsivity would predict substance use, which would predict emotional/binge eating and also predict overweight/obesity. The model was tested and exhibited excellent fit. ADHD positively predicted depressive symptoms, which in turn positively predicted emotional/binge eating and led to overweight/obesity. Further, ADHD symptoms also positively predicted substance use, which in turn predicted emotional/binge eating and led to overweight/obesity. All paths were statistically significant and findings suggest there are at least two paths that connect ADHD symptoms and overweight/obesity in adults. The current results are of importance to practicing clinicians because they provide increased clarity and depth regarding the connections and relationship between symptoms of ADHD and overweight/obesity.