How my son discovered vegetables was from growing them in the garden.

Fairness forces you - even when you're writing a piece highly critical of, say, genetically modified food, as I have done - to make sure you represent the other side as extensively and as accurately as you possibly can.

After writing 'The Omnivore's Dilemma,' I wanted to write a book that got past the choir, that got to people who didn't care about how their food was grown but who did care about their health.

The French fry did not become America's most popular vegetable until industry took over the jobs of washing, peeling, cutting, and frying the potatoes - and cleaning up the mess.

Reading is to the mind what exercise is to the body.

Facebook is not a physical country, but with 900 million users, its 'population' comes third after China and India. It may not be able to tax or jail its inhabitants, but its executives, programmers, and engineers do exercise a form of governance over people's online activities and identities.

Moreover, environmental health at the local level has become narrowly focused, very much defined around regulations and the attendant regulatory debates.

My main form of exercise is my bike. I don't have a car, so I cycle everywhere.