Research shows that the best brain foods are the same ones that protect your heart and blood vessels, including the following: Green, leafy vegetables. Leafy greens such as kale, spinach, collards, and broccoli are rich in brain-healthy nutrients like vitamin K, lutein, folate, and beta carotene. While food alone cannot cure mental health disorders, incorporating these nutrient-rich options into your diet can support your overall mental well-being. Remember, a healthy diet, along with other lifestyle factors, such as regular exercise and sufficient sleep, plays a vital role in maintaining good mental health.