“Sugar makes children hyperactive.”

The widespread belief that sugar makes children hyperactive is a common misconception, often fueled by observations in exciting social settings. The idea gained significant traction in the 1970s, partly influenced by allergist Benjamin Feingold's work, which linked hyperactivity to food additives, colors, and preservatives. While Feingold's diet didn't specifically target sugar, many parents mistakenly made the connection because sugary foods often contain these additives. This led to a pervasive cultural narrative that associated sugar consumption with a sudden surge of boundless energy in children.

However, decades of rigorous scientific research have consistently debunked this perceived link. Numerous controlled studies, including double-blind randomized controlled trials and comprehensive meta-analyses, have found no direct causal relationship between sugar intake and hyperactivity in children. These studies, some even funded by institutions like the National Institutes of Health, have shown that children's behavior and cognitive function remain unaffected by sugar, even when intake exceeds typical dietary levels or when compared to artificial sweeteners. The Centers for Disease Control and Prevention also states that research does not support the view that sugar causes ADHD.

So, why does the myth persist so strongly? The perceived "sugar rush" is largely attributed to the exciting environments where sugary treats are typically consumed. Think birthday parties, holidays, or other celebratory events where children are naturally more animated and energetic due to the stimulation of the occasion itself. Parents' expectations also play a significant role; studies have shown that parents who believe their child has consumed sugar are more likely to perceive them as hyperactive, even when they haven't had any. This phenomenon, known as confirmation bias, allows adults to "see what they expect to see," mistakenly attributing the excitement of the moment to the sugar rather than the overall context.