QUOTE
I pay about 120 a week for food for my family. About 25 percent of that would be snack food, which is probably average to high for most Americans. 30 dollars a week. We might go out for fast food occasionally but it isn't more than about 50 dollars in junk (I hope not quite that high ) Assuming 200 dollars in direct junk a month, around 2400 (YICKS!) a year in chunky chews, how much are we going to tax that food? The suggested one percent only yields 24 dollars a year in revenue, for the entire family. Ten percent? Double? How much would we have to charge before the money generated would make the tiniest perceivable impact in healthcare cost? The cost of food would be astronomical by that point
Okay, look at it this way. You reckon that you spend about $2400 per year on "junk" food. Let's say that there was tax added to the JUNK food (but not the ordinary groceries and fresh produce you spend the other $90 per week on), that made it cost half as much again. $300 a month, not $200.
You could either carry on as normal, paying $1200 a year in extra tax that you don't pay now, which might be hypothecated to go towards your family's own healthcare costs, but more likely would just go into the big government pot.
But you wouldn't
have to do that. You could also cut down (or out) on the junk food and instead buy more fresh produce and ordinary groceries. If you cut out fast & junk food altogether, your food bill stays the same or goes down. (By the way, it would do that even without any tax changes - it is junk food because it is produced cheaply - all the additives and fat and sugar and preservatives and flavourings are there to disguise the poor quality of the ingredients, so it can be sold at a bigger profit margin by the vendors and manufacturers.)
Your family eats about the same physical quantities of food, if not a little MORE than now. And because you aren't eating crap, you all end up being somewhat healthier and you need to spend LESS on your healthcare (or, indeed the state needs to spend less on it, if that's the situation you find yourself in).
Now you may have pragmatic objections on the grounds that it wouldn't work, or that you don't trust the government to pass on the overall tax savings (as several people have mentioned), but I don't see how the idea can be opposed on principle at all, except on the principle that there should be no taxes at all for anything. This is not one I would agree with, but fair enough.