Fasting is the willing abstinence or reduction from some or all food, drink, or both, for a period of time. An absolute fast or dry fasting is normally defined as abstinence from all food and liquid for a defined period. Water fasting refers to abstinence from all food and drink except water, but black coffee and tea may be consumed. Other fasts may be partially restrictive, limiting only particular foods or substances, or be intermittent.
What Is Intermittent Fasting and Is It Safe For You? Fasting—or cessation from eating for a specific period of time—has gotten a bad rap! For millennia, Judeo-Christian traditions have recommended fasting for drawing closer to God.