Diet is key to recovery from ADHD and autism. Some foods in particular are especially beneficial for, variously, flushing out heavy metals and other toxins, healing brain tissue, supporting healthy neuron signal transmission, providing glucose to the brain, calming the mind, and strengthening the central nervous system. These foods include wild blueberries, cilantro, coconut oil, celery, bananas, blackberries, avocados, strawberries, and flax seeds.