Nutrition has an influence on mental health. It can affect your mood balance and your intellectual capacities.
Consumption of fruits, vegetables and fresh foods is good for the prevention of mental health problems like depression and anxiety. Processed foods lead to depression which then leads to an increased consumption of processed foods. A small consumption of alcohol can help you feel happier, but at the inverse, an excessive consumption of alcohol can make you feel depressed in the long run. Omega-3 fatty acids, contained in fishes make us feel happier.