Scientific studies in humans do not support the hypothesis that sugar may be physically addictive or that addiction to sugar plays a role in eating disorders. Recently, NeuroFAST, an EU-funded project aiming at investigating the common neurobiology involved in eating behaviour, addiction and stress indicated that the current evidence does not allow concluding that a single food substance can account for the fact that people overeat and develop obesity. In humans, there is no evidence that a specific food, food ingredient or food additive causes a substance-based type of addiction.