Does cake contain happiness ?

If it does, then the more you consume it, the happier you'll feel. But according to deeply respected Imam Beewi, economics lecturer, college of Engineering ,Trivandrum and also our own experiences, there is a limit on the happiness ( ie marginal utility ) derivable from cake. So that means it is our mind that is making this happiness. That means to grow thin and healthy, all you need to do is discipline your mind. In fact, any person with a disciplined mind can overcome temptations of all kind.