Food works better than Valium, I'm famous for telling my eating-disordered clients. Cookies and milk are comforting. A bowl of ice cream eases stress like nothing else. But as comforting as food can be, if it's the only thing that helps you manage your mood, you're at greater risk for more serious mental health problems, from anxiety and depression to body dissatisfaction and eating disorders.
Instead of relying exclusively on food to manage mood, I encourage clients to practice meditation, self-compassion, yoga and other "non-food" coping strategies.