Your assumption that people “eat” and game at the same time, is very individual. If I look at myself, if I truly play a game for more than a few hours non stop, which is super rare these days, then I often forget to eat as I am focused on what I do. 
I am more a person that eats when I watch TV, which is actually a habit of me to cook food and watch a movie while eating. 
And if you look at streamers, who are online for hours non stop, how many of them are eating there and look “overweight”?
Gaming addiction is serious, but to assume someone is addicted because that person logs in once in a while is still silly. For a lot of folks it´s just a habbit, or would you call smoeone addicted, if he goes to the bar once a week?
Maybe I am just the wrong person to speak about this, as I know addiction in RL and can relate to how it destroys people, while addcition in a video game is kind of unreal to me.
I always look at games as some silly waste of time, you know, if you have nothing else to do, you play a game. I would be totally bored sitting infront of a PC all day and spending thousands of $$$ on virtual pixels is kind of confusing to me.
It just would not add anything to my life and the most of time I spend in a video game was as a teenager when I was in a relationship with someone on the other side of the ocean.
An addiction for me if we talk gaming is more about pumping all that money you earn into horse bets or into Las Vegas, Poker.
Or if we look at WOW as an example, if you skip school, work to play or if you buy all those cosmetics in the store, while you run out of money to pay the rent.
But folks here in this thread that still play, nah, that is not an addiction, at least in my books.