I did post some street shots to try and steer conversation back to things photographic...
You did ignore Chairman Bill's photographs and steer the conversation away from things photographic --
If people are overweight, it's 99.9% because they eat more than they work off through exercise.
But I don't think I'll actually get any answers to my question for alternatives.
I very clearly said that your remark is True, so there's no reason to expect alternatives - other explanations would be additional not alternative.
And water is still not food, so not something you can overeat particularly as it has zero calories.food noun
: "something that can be taken in by an animal and used to keep it alive and allow it to grow or develop, or such things considered as a whole"
"A 28-year-old woman died of water intoxication