What is the relationship between fasting and religion?

Answer 1

Some cultures place religious value upon food. Take for instance the Jewish "Kosher" foods. It is a guidline based upon purity and quality that dictates how food is to be prepared. It is possible that religious guidelines regarding food came about due to a need in the "ancient" world, and have survived to this day due to doctrine, and basically being a pretty good idea. Depending on the religion is the value, and reasons for said value, placed on foodstuffs.

Answer 2

Fasting has also been used in nearly every religion in the world, including Christianity, Judaism, Buddhism, and Islam. Many of history's great spiritual leaders fasted for mental and spiritual clarity, including Jesus, Buddha, and Mohammed.

Answer 3

Traditionally religious groups include instructions about diet in their teachings.