Fasting is the act of willingly abstaining from some or all types of food and drink for a specific period of time. People may fast for various reasons, including religious practices, health benefits, or personal discipline. It can range from complete abstinence to limiting certain foods or meals.
The word "fasting" comes from the Old English term fæstan, which means "to hold firmly" or "to observe." This relates to the practice of holding oneself from eating or drinking.