Stop eating before you're full.

There's a lot of research that suggests that organic yields are close or superior to conventional yields depending on factors like climate. In a drought year an organic field of corn will yield more - considerably more - than a conventional field; organic fields hold moisture better so they don't need as much water. It simply isn't true that organic yields are lower than conventional yields.

Imagine if we had a food system that actually produced wholesome food. Imagine if it produced that food in a way that restored the land. Imagine if we could eat every meal knowing these few simple things: What it is we're eating. Where it came from. How it found its way to our table. And what it really cost. If that was the reality, then every meal would have the potential to be a perfect meal.

In 2008, a year of supposed 'food crisis', we grew enough food to feed 11 billion people. Most of it was not eaten by humans as food, however.

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.

You want to say the thing that will drive everybody in the direction you want to go. But as a writer you have a pact with your readers that you'll be really straight with them at all times.

Don't eat breakfast cereals that change the color of your milk.