I doubt if anything has been written about more in the last 100 years than diet and nutrition. It seems we are facing a crisis across the globe as people are getting fatter and no one seems to understand exactly why. So in this section I want to pull together our knowledge so we can get a clearer picture of what’s going on. I want to look at the quality of food including growing more of our own. I want to discuss why so many of us suffer with tricky digestive systems and to throw some light on why and what we can do about it.