Obesity is intertwined with behaviour. Many eating-related behaviours have been proposed to explain obesity, such as food addiction, disinhibition and emotional eating. However, these behaviours tend to similarities based on both statistics and definitions. I propose that these behaviours can be aggregated into a single broad trait – Uncontrolled Eating. Such an approach enables reviewing and meta‐analysing evidence done on each individual behaviour. I review evidence how the aggregated Uncontrolled Eating has robust associations with body mass index, food intake, personality traits, and brain systems. I also map out Uncontrolled Eating’s behavioural similarity with other addictions and psychiatric conditions. In summary, Uncontrolled Eating summarises important behavioural aspects of obesity.