Part 2 will be a basic overview of what the ketogenic diet is and how it affects the human body. We will also look at some of the potentially unpleasant symptoms that people can experience when transitioning from a carbohydrate-heavy diet. While there are ways to mitigate these growing pains, some unaccustomed feelings will be inevitable when switching metabolic energy sources. This section can also be used as a quick-start guide if you want to begin the ketogenic transition before finishing this book.