Does sugar affect ADHD?

Sugar consumption, particularly highly refined sugars, has a negative impact on individuals with ADHD or attentional issues. Andrew Huberman points out that while glucose is necessary for neuron function, excessive sugar intake can worsen ADHD symptoms. This conclusion is supported by systematic reviews and meta-analyses which found that children who consume more than four sugary drinks per week exhibit more severe symptoms of ADHD. However, it's unclear whether sugar consumption can trigger or cause ADHD 1 2.

Additionally, dietary modifications, especially the reduction of simple sugars, have shown positive effects in managing ADHD symptoms. Observations from pediatric neurologists confirm that controlling sugar intake can significantly improve the condition, potentially even reducing the need for medications 3.