I like food too much to go on some crazy diet. French fries are my favorite downfall.

Going meat-free can make a huge difference. Studies show that vegetarians are, on average, 10 to 20 pounds lighter than meat-eaters and that a vegetarian diet reduces our risk of heart disease by 40 percent and adds seven or more years to our lifespan.

Perhaps one of the most important things you can do for human beings is wean them off an animal-based diet. It hardens the arteries and runs up our health-care costs. The last thing a poor person can afford is a heart attack or cancer or a stroke. And that's all linked to a meat-based diet. I think animal liberation is human liberation.

Look at the average American diet: ice cream, butter, cheese, whole milk, all this fat. People don't realize how much of this stuff you get by the end of the day. High blood pressure is from all this high-fat eating.

I won't sit here and say I've never had a pimple, but I try to have a really great diet, you know, lots of vegetables and fish. And I think stress plays a huge part too.

And I grew up on a steady diet of science fiction, especially apocalyptic and postapocalyptic fiction.

I don't have a problem with my body. I don't diet, and I'm not hiding anything. I'm not going to be the subject of a movie of the week 10 years from now.

You can't exercise your way out of a bad diet.

The very fact that we are having a national conversation about what we should eat, that we are struggling with the question about what the best diet is, is symptomatic of how far we have strayed from the natural conditions that gave rise to our species, from the simple act of eating real, whole, fresh food.

Lifestyle change and changes in diet work faster, better and more cheaply than any medication and are as effective or more effective than gastric bypass without any side effects or long-term complications.