Having the declarative knowledge then being able to practice it. I am sure most people know that they are supposed to eat 'healthy'. It can only be one part of a larger program to combat obesity.
Many people don't know just how unhealthy it really is. Many also don't know how to make or choose their own healthy food. It's mostly about habits. It's fine to eat a super-sized meal rarely if you were hungry enough and extremely active, but it's more of an exception.
If we extend this to alcohol, then we should ban all alcohol. Alcohol is generally fine in moderation or occasional use. But if we need to ban things because a minority of the population misuses it, then we will have an extremely long list (butter, sausage, steak, etc).
Tho person you replied to didn't say 'ban' they said 'regulate' and 'a larger plan to combat obesity', and your counter of alcohol is heavily regulated across the world. Some have government run shops, others have advertising bans, or mandatory health warnings, alcohol content labelling and so on. And probably in general should be more regulated.
It read like a ban to me. Other than age restrictions, which vary wildy, it doesn't seem like alcohol regulations have done anything to prevent unhealthy use.
Then you need to increase your reading comprehension. I nowhere said or implied "ban".
Or you need to examine your biases; are you perchance a libertarian? Or really right-leaning in any way. If you're American, chances are very good the answer is 'yes'.
