He looks at his own “dieting life” and then at what drives the whole food industry, not just the dieting industry (in his professional life he advises the UK government, UN agencies on food, nutrition and personal and public health).

The things that the food industry, in the main, offer us, are addictive and nutrition-poor. Sugar, fat, salt.

And it is the satiating qualities of these readily-available and tasty foods that makes them the “medication of choice” when people do not want to face their feelings.

Some people choose alcohol, some shop, some gamble – but a huge number eat these empty foods.

And as we cannot completely give up eating, as we can stop drinking, gambling etc, we have to learn new attitudes and behaviours which start from a different premise about food.

So this is what the second part of the book is about.

(The chapter on How to write a best-selling Diet book is particularly enlightening…!)