Permanent diet may equal longer life

[an23dy]

I think one of the underlying reasons why it's better is that your body gets used to how much food you're eating and the body doesn't have to guess how much food is going to be eaten and then over-compensate or under-compensate depending on whether you eat a lot more or less food one day. When it has to change like this it puts a lot of stress on the body and how it functions.