I'm not particularly skinny, and not exceptionally overweight either. The funny thing is though on paper I do everything diet wise wrong, I never eat breakfast - which is the worse sin in the world to many. Pretty much every day I'll start off at 7am, be drinking coffee in the morning with the odd water, have lunch around 1pm a sandwhich - first food of the day. Drink tea or water in the afternoon. Evening meal can be as late as 9pm. This should all make me a medical disaster, yet I have not seen a doctor in the last 28 years - so either I have some amazing genetic power make up that makes me invincible - or something in my unusual eating habits makes up for it. And given I technically can be fasting for 16 hours every single day - maybe your Dr Fung has a good point.