Often fast food is only the food available for those on a low income, especially when there are no or little cooking facilities at home/work. But why it is so appealing, is probably down to its addictive nature. Fast food had been bioengineered to be addictive. And even though that sounds scary we wonder why are we allowed to buy it. 40 years of research and lobbying by food companies has reduced the bar for what we call food. Coke can dissolve a tooth left in it overnight Coke can clean a toilet Ketchup can clean a coin A burger left to it’s all one never rots Twinkies don't rot There are many other scare stories that mean that what we eat isn’t actually food out even natural. Yes there are food guidelines: Laughably they are produced with the help of food companies. One such pregnancy NHS caffeine guide says: Five cans of cola (up to 40mg each) But the pregnancy NHS sugar guide means you shouldn’t even have one can of coke. ...