Debunking the Myth: Does Sugar Cause Hyperactivity?

Pittsburgh Dietitian Blog Posts
November 1, 2023

For generations, parents have warned their children about the perils of consuming too much sugar, often citing the fear of hyperactivity as a reason to limit their intake. This popular belief has been ingrained in our society, leading many to associate sugar with erratic behavior and restless energy in children. However, scientific research over the years has provided a much-needed reality check, revealing that the sugar-hyperactivity connection might be nothing more than a widespread misconception.

Understanding the Myth
The idea that sugar causes hyperactivity can be traced back to the 1970s when a few studies seemed to support the claim.¹ Parents and teachers alike began to blame sugary treats for children’s wild behavior. However, subsequent research has failed to provide substantial evidence to support this notion. In fact, numerous studies have debunked the myth, showing no direct link between sugar consumption and increased hyperactivity in children.

The Role of Sugar in the Body
To understand why sugar doesn’t cause hyperactivity, it’s essential to grasp how sugar is metabolized in the body. When we consume sugar, it is broken down into glucose, the body’s primary energy source. Glucose fuels our body, providing the energy needed for various activities. However, this energy boost does not translate into hyperactivity. It simply gives us energy that we can use to walk, talk, and go trick-or-treating!

Scientific Studies and Findings
Numerous scientific studies have been conducted to investigate the sugar-hyperactivity relationship. One notable study looked at the relationship between sugar consumption and ADHD in kids ages 6 to 11. The authors found that “high consumption or an increase in sugar consumption between 6 and 11 years of age was not associated with higher incidence of ADHD between 6 and 11 years of age.²” This is just one example of the many studies done on the topic. While older research may have suggested a link, we are now seeing that being disproven time and time again.

Understanding Hyperactivity
Hyperactivity is a complex behavior influenced by various factors, including genetics, environment, and individual differences in temperament. Conditions like Attention Deficit Hyperactivity Disorder (ADHD) can also contribute to hyperactive behavior. Blaming sugar for hyperactivity oversimplifies a multifaceted issue and diverts attention from addressing the real underlying causes.

While it might be tempting to blame sugar for the occasional burst of energy in children, scientific research consistently debunks the myth that sugar causes hyperactivity. It is important to understand the complexities of children’s behavior and address concerns based on credible scientific evidence. If you feel that your child is genuinely hyperactive, please speak to your healthcare provider about it. If you only feel that your child is “hyperactive” around sugar, ask yourself if they are truly hyperactive or excited about their environment.

By dispelling these myths, we can foster a healthier attitude towards food and help children develop a balanced relationship with the sweet treats they enjoy in moderation. Let’s focus on promoting accurate information and encouraging a well-rounded approach to nutrition and child development, grounded in scientific truth rather than enduring misconceptions.

If you would like to speak to a registered dietitian about your child’s relationship with sugar or food in general, reach out to to set up an appointment!

Happy Halloween from Case Specific Nutrition!


  1. Ansel K, Ellis E. Sugar: Does it Really Cause Hyperactivity? Published June 29, 2022. Updated June 17, 2022. Accessed October 29, 2023.,without%20proving%20sugar%20causes%20hyperactivity.
  2. Del-Ponte B, Anselmi L, Assunção MCF, et al. Sugar consumption and attention-deficit/hyperactivity disorder (ADHD): A birth cohort study. Journal of affective disorders. 2019; 243: 290–296.
Case Specific Nutrition logo
Stay Up To Date

Sign up for our newsletter

Sign up for our newsletter to stay up-to-date on new products, special offers, and exclusive content from the CSN team.

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form. Please check your submission and try again.
An image of a Case Specific Nutrition® office.
The Case Specific Nutrition® East Liberty office.
Case Specific Nutrition logo
Find Us

Find Your Location

Embarking on your wellness journey has never been easier. With multiple Case Specific Nutrition® locations, a healthier lifestyle is right around the corner. Visit our Locations page to find the Case Specific Nutrition center nearest to you and step into a world of tailored health and wellness support!

An image of a glass of water and delicious, healthy food.
Case Specific Nutrition logo
Want more?

Get Started

At Case Specific Nutrition®, we believe in providing personalized support every step of the way. Get in touch with our team today to get more information about our services, answer your specific health questions, or just say hello! Our friendly team is eager to hear from you.