While there is no specific diet that has been proven to cure or treat Attention Deficit Hyperactivity Disorder (ADHD), there are some dietary changes that may help manage symptoms. Here are some foods that may be beneficial for individuals with ADHD:

Protein-rich foods: Foods that are high in protein, such as lean meats, eggs, nuts, and beans, may help improve focus and attention. Protein helps to stabilize blood sugar levels, which can help prevent the spikes and crashes that can worsen ADHD symptoms.
Complex carbohydrates: Foods that are high in complex carbohydrates, such as whole grains, fruits, and vegetables, can help provide a steady source of energy and prevent blood sugar crashes that can worsen ADHD symptoms.
Omega-3 fatty acids: Foods that are high in omega-3 fatty acids, such as fatty fish, flaxseed, and chia seeds, may help improve cognitive function and reduce symptoms of ADHD.
Iron-rich foods: Iron is important for brain function, and low iron levels have been linked to ADHD symptoms. Foods that are high in iron, such as lean meats, beans, and dark leafy greens, may be beneficial.
Antioxidant-rich foods: Antioxidants, such as vitamins C and E, may help protect the brain from damage and improve cognitive function. Foods that are high in antioxidants, such as berries, citrus fruits, and dark chocolate, may be beneficial.

It is also important to note that some people with ADHD may have sensitivities to certain foods or food additives, such as artificial colors or preservatives. If you suspect that certain foods may be exacerbating your symptoms, it may be helpful to keep a food diary and track your symptoms to identify any patterns.

Overall, a balanced diet that includes a variety of nutrient-rich foods may be beneficial for managing symptoms of ADHD. It is also important to work with a healthcare professional to develop an individualized treatment plan that may include medication, therapy, or other interventions.