Voracious is how I see my appetite --for everything! Eating is a big one. It's evolved over the years but has always existed. School pictures from 1st grade can verify this. In high school it morphed slightly. Eating became the lesser appetite to cigarettes, then pot, then sex. Some call it addictive personality.
Now eating is my only remaining vice. (Although I do still exercise and hit the occasional doobie). I plan it, read about it, look forward to it. I make stupid recipes I find. Some take all day and I know I'll be the only one in the house to eat it. I think about what I can eat next, right after I eat. I never have to worry about spoiling my appetite.
To those that look at it outside of their own addictions I say phewy. The fog of appetite exists for everyone in one way or another. My appetite isn't really for the substances of my addiction, or my abuse, or my over use. Nor is yours.