Chicken fat, beef fat, fish fat, fried foods - these are the foods that fuel our fat genes by giving them raw materials for building body fat.

The thinnest people on the planet are those who eat the most carbohydrates.

In my own life, I decided to leave meat off my plate in medical school, but was a bit slow to realise that dairy products and eggs are not health foods either.

I thought - being a musician doesn't help your medical credibility really. Although I started to rethink that when I learned that Albert Einstein was quite a violinist and in fact would perform a lot with symphonies. So if it's good enough for Albert, it's good enough for me.

People have to know that if they've wanted to lose weight, if they've wanted to get their diabetes better and get their cholesterol down, here is how it works. Beyond that point, you can't force people into changes, you have to guide them.

The Stone Age gave us arrow heads and eventually knives, and that allowed us to kill animals in ways you couldn't before, and once you had them you were able to remove the skin and bones.

The important thing is that while heroin and cocaine and tobacco and every drug and junk food cause dopamine release, there are healthier ways that you can put this into your life. And the three big ones are intimacy ... physical activity ... and the third thing is music.