Chapter 1: Food Groups, Calories and the
Dangers of ‘a Little Knowledge’
To understand where all the bad advice and where all the fad diets on the
web come from, you first need to understand a little about the history of diet
advice and what we have historically thought about our food over the years.
Because this is how things have gone a bit wrong – and it’s with the best of
intentions.
A long time ago, we didn’t know anything about food or about nutrition. We