I’m going to speak from the 1st person position:
I am not my hand, I am not my foot, I am not my body, I have a body but I am not my body.
My take? My body has more in common with my car than ‘me’. It is a material object that gets me from Point A to Point B. It behooves me to read the owners manual and treat it ‘as per it’s requirements.’
There is only one reason to eat ever: It is time to nourish my body.
There is only one reason to drink ever: It is time to replenish my fluids.
Tip 1: put a sticky note on the door of your snack cabinet noting ‘it is time to nourish my body’.
Tip 2: put a sticky note on the door of your wine cabinet (or fridge) noting ‘it is time to replenish my fluids.’
Why the sticky note? To engage your consciousness in the moment. Free will exists only in the moment.