How do you feel about a fat tax on fatty foods?

I was up having breakfast at a Mcdonalds (of all places), and on the news they were talking about putting a 10% tax on fatty foods to offset the cost of medical expenses due to obesity in the United States.

It would have a pretty big effect on many things I’m sure, the amount of business fast food places would do at that point. Or how much more business a Subway restaurant would do.

I may not have the exact tax rate, but for some reason 10% is stuck in my mind.

What do you think of this tax? I initially thought it was kind of a good idea, wouldn’t really effect me that much since I eat healthy anyways, and in the rare circumstances that I want some fast food, I don’t think I’d complain too much to pay 10% tax on the fatty food.