The following are foods that help strengthen mental health: 1 . Although fish, in general, is a healthy choice, salmon is high on the list. It is a "fatty" fish, which contains high amounts of omega-3 fatty acids, which have been linked to reducing mental disorders such as depression. Omega-3s have been shown to improve reading and memory as well. 2 . Chicken helps your body produce serotonin - which is important in helping your brain control your mood, fight stress and help maintain a strong memory. 3 .Avocados are rich in vitamin K and folate, which help to protect your brain from dying of a stroke. 4 . Yogurt can also provide you with potassium and magnesium, which helps oxygen get to the brain, improving its ability to function. 5 . Dark chocolate has high levels of flavonoid, a type of antioxidant. It has been shown to improve attention and memory, improve mood and help combat dementia in older adults.