Earlier quoted context omitted.
This is why food bans are bad. The same thing that harms one person can work for someone else. Even something like Bloomberg's ban on large sodas is probably heavy handed. Sugar is not always a poison. It can be a valuable fuel, even at large quantities (and large sizes can also add a lot of convenience to some people's lives).
The problem is the sugar is addictive, abused by 99% of its users and it provides no benefit. In what cases is soda a valuable fuel that couldn't be replaced by something more natural and healthy?
It's sugar, it provides energy. Some people like the taste and the bubbly sensation of soda.
Here is Zdeno Chara, one of the best defencemen in recent hockey history drinking one during a very important game:
https://www.youtube.com/watch?v=EVA7lgJRHQQ
Just because someone who is burning 2,000 calories is drinking a small bottle doesn't mean it is appropriate to drink 2L everyday. Everything in moderation.