BDNF depression
Depression caused by persistently low BDNF is associated with cognitive decline. Increasing BDNF through diet, supplements, exercise, and psychedelic therapy can combat depression in which low BDNF is identified as the cause.
Read more about what you can do to increase BDNF in our article about Increase BDNF through diet, exercise, and psychedelic therapy
Even more nutrition-focused for combating depression is our article on the anti-depression diet