Why isn't there a fight against unhealthy food like is for drugs?

[Homeless Nutter]

I am relating to anecdotal evidence in a way, I've always noticed people who have had a problem with their weight have eaten too much food, namely fast food containing lots of salt sugar and fat. And they didn't burn enough of it off.[...]

And have you never met people, who eat fast food, don't exercise and yet remain skinny? Because I have. My brother, for example, always ate (and drank more alcohol) more than I did, never did any sports, while I did and throughout most of his life remained thinner than I was. This has changed with age, though and now - in our late 30's - he seems to be putting on weight, while I seem to be losing it, even though his line of work requires more physical activity than mine. Of course - neither of us was ever obese. But I've known number of people, who never put on weight, regardless of their life-style and some, that put on weight, due to medical conditions, like hypothyroidism, or insomnia. Which is why I keep insisting - it's not as simple as one would like.

And sure, obese people tend not to exercise much - because it's quite a lot more painful to jog while carrying extra 100+ pounds. And they tend to eat more, because what else are they supposed to do? Society tells them, they're worthless, nobody wants to f*ck them, so eating is one of the few pleasures they have left...

[...]
But I wasn't talking specifically about obesity when I mentioned that, I was just relating that back to the main topic in general which is food regulations.

Fair enough. However, if we're talking about food regulations - it's not quite so simple to fight obesity with legislation, especially if you're right and obesity (or generally weight problems) stems mainly from over-eating. Because in that case - the same substances, that we need to consume (in other words - food) cause obesity.