Myth: Sugar Causes Hyperactivity in Children

A common belief is that eating sugar makes children hyperactive or leads to a "sugar rush." Many parents avoid sugary foods or believe that a child’s behavior changes drastically after consuming candy, soda, or desserts. This myth has been perpetuated by anecdotal observations and by the media, leading many to blame sugar for behavioral issues in children.

Research has shown that sugar does not cause hyperactivity or behavioral changes in children. Numerous studies, including those reviewed by the American Psychological Association, have found no significant link between sugar consumption and hyperactivity. While parents may observe that their children seem more energetic after eating sugar, this is usually due to situational factors, such as excitement during a party or a sugar-filled treat being associated with positive experiences. Some studies have indicated that expectations about sugar can influence behavior—a phenomenon known as the "expectancy effect." When parents believe sugar will make their children hyperactive, they are more likely to observe energetic behavior. In fact, hyperactivity in children is often linked to factors like lack of sleep, overstimulation, or underlying conditions such as ADHD, rather than diet. A balanced diet, regular exercise, and enough rest are much more impactful in managing a child’s behavior.