How long does fast food shorten your life?

Answer 1

Really? it'll only shorten your life if you eat too much of it too often, its not like you eat it once and go "Well there goes 5 years!" it'll only shorten your life because you can get seriously unhealthy if you eat too much, so narrow it down to about once every one or two weeks, keep active and exercise regularly, and you don't need to worry about it, also it's does, not dose, how old are you? Not in a rude sarcastic way, but how old are you?