I think very few psychologists realize that bad food can cause - and perpetuate -depression.
At one point in my life, addicted to sweets, I was in a downward spiral. Of course I knew what I should be eating. But bad food causes cravings for more bad food.
I began to notice pre-diabetic symptoms, but wouldn't go to a doctor. I thought I would die happy - eating myself to death!
I'm not surprised that you feel like a therapist!