95% of it CAN be the food - malnutrition and lack of nutrients combined with drug-like affects of drug-like food. And yes, feelings of helplessness/loss of control can be caused by drug foods like sugar. For me and my loved ones, 95% of it is the food first.

On the other hand, it's both behavioral and physical because one has to pick up the right food right?

Once the nutrition is there, I agree that psych professionals can help. AFTER the food is good.

But like when my DD was in the hospital for anorexia. The 1st two weeks, no therapy. Just nutrition because their bodies and heads are dysfunctional.

This applies to people not in the hospital too, IMNSHO.