Research is being conducted on the relationship between diet and attention deficit hyperactivity disorder (ADHD), with some studies examining the impact of certain foods on the condition. There is also a focus on the potential risks associated with prenatal diet and exposure to heavy metals in baby food. The exact nature of the link between diet and ADHD is still being explored, with some outlets discussing the best and worst foods for those with the condition, while others highlight the need for further research, particularly in certain populations.