There is limited evidence to suggest that GABA may be beneficial for ADHD symptoms. A small double-blind, placebo-controlled study found that GABA supplementation was associated with reduced ADHD symptoms in children. However, more extensive and rigorous studies are needed to confirm these findings. It is important to note that GABA is not a regulated medication for ADHD and should not be used as a replacement for medicines prescribed by a healthcare professional. If you consider using GABA to treat ADHD symptoms, speak with your doctor first.