Growing up, we all learned about the basic food groups and what we should ideally be putting into our body. But how many of us learned about the very real connection between our gut and our brain? Or between our gut and our emotions? Historically, nutrition education and research has focused largely on how the foods we eat affect our physical health. But the new emerging field of nutritional psychiatry, studies how the foods we eat impact our mental health - the way we feel emotionally.