I think we have to do everything that's useful. We're doctors. Our job is to tell the truth. And it doesn't have to be embellished in any way.

If some people think, "Why am I eating a dead bird soaked in poop?" I think if some people get disgusted by that, it's all to the good. Their coronary arteries will be healthier.

To give a child animal products is a form of child abuse.

I am always struck by how difficult it is for people to see how much cruelty they are bringing not only upon animals but upon themselves and their loved ones and other people, how much we are screwing up the planet, how much we are hurting our own health, how hard it is to change all that, how eager people are to make a buck at everybody else's expense - all those things are discouraging.

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.

Music is the exact opposite of anxiety. It's there to relieve anxiety, to calm you down. And to just get the noise out of your biological system. So that, it's not going to make your immune system stronger than normal. What it does, in my view, is allow your immune system to work with the full force of normality.

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.