Of the four elements, air is the most elusive because we can't see it. There's something very magical about it. One of the ways we transform food is by getting air into it. Think of the soufflé, think of the loaf of bread. These things are elevated by the fact that they now contain air. They're ethereal. Visit food labs and Moroccan fields as Michael Pollan delves into the science of bread-making and the nature of gluten.

Our wheat has changed dramatically, it doesn't even resemble what it used to look like. Not only are we seeing more wheat and gluten sensitivity, there is also a strong connection between gluten and autoimmune diseases. Tens of thousands of people are suffering with ill health and don't realise it's a result of the food choices they are making. Some assume it is part of their genetic make-up or the body changing as they get older.
People need to become educated, knowledgeable and aware. They need to start making changes to improve the health of their children and future generations.