Rational Fasting

"Rational Fasting" by Arnold Ehret is a historical book on fasting, nutrition and lifestyle, in which the author presents his theories about the effects of food and fasting on the body.

Ehret sees fasting as a way to give the digestive system a rest and links it to a mainly plant-based diet. In the book he discusses short and longer fasts, how to eat before and after fasting, digestion and daily habits.

An important part of the work relates to the author's theory known as the "Mucusless Diet Healing System", according to which certain foods create "mucus" and unwanted build-up in the body. This is a historical theory of Ehret's and is not considered a model proven by modern medicine.

"Rational Fasting" may interest readers who want to learn about the history of ideas on fasting, natural nutrition and lifestyle. However, the book's advice should not be treated as contemporary medical guidance, especially regarding prolonged fasting.