Can you elaborate? I believe it can, especially with particular fetishes. Junk food can also be very rewarding to the brain too...
Of course everything you do plays a role, junk food lowers your mood, kills the body, hurts dopamine which is necessary for rebooting, nofap Is not simply no pmo its a life style, there are many pieces to the puzzle that is nofap, its eating healthy, exercising, cold shower, no pmo, meditiation, it is anything that will better you, so anything that will harm you should be taken out of your life.
I don't see how. Food addiction is a completely different addiction. I mean, if someone can prove that nicotine addiction somehow affects P addiction then I'll alter my opinion. But, I don't see how food addiction affects a P addiction.