Meaning and definition of fasting, what is fasting in the bible, fasting definition, why should I fast, the power of prayer and fasting, Location of Galilee, where was galilee in the bible?, fasting definition, Galilee region, cities of Galilee, Sea of Galilee, Definition of biblical fire, what is fire in the bible?, fire and brimstone, fire meaning, baking bread with fire, Definition of the biblical firmament in Genesis, what is the firmament in the bible?, was the firmament the third heaven, firmament meaning, did the firmament bring the flood of Noah?.
For members of The Church of Jesus Christ of Latter-day Saints, fasting is total abstinence from food and drink accompanied by prayer. Members are encouraged to fast on the first Sunday of each month, designated as Fast Sunday. During Fast Sunday, members fast for two consecutive meals (24 hours); this is usually Sunday breakfast and lunch, thus the fasting occurs between the evening meal on Saturday and the evening meal on Sunday. The money saved by not having to purchase and prepare meals is donated to the church as a fast offering, which is then used to help people in need. Members are encouraged to donate more than just the minimal amount, and be as generous as possible. The late LDS President Gordon B. Hinckley asked: "Think ... of what would happen if the principles of fast day and the fast offering were observed throughout the world. The hungry would be fed, the naked clothed, the homeless sheltered. … A new measure of concern and unselfishness would grow in the hearts of people everywhere." Fasting and the associated donations for use in assisting those in need, are an important principle as evidenced by Church leaders addresses on the subject during General Conferences of the Church, e.g. The blessing of a proper fast in 2004, Is Not This the Fast That I Have Chosen? in 2015
Fasting or intermittent calorie restriction may affect cancer and tumor development, but are not currently used as a form of treating cancer. In 2011, the American Cancer Society recommended that people undergoing chemotherapy increase their intake of protein and calories, but provided evidence that a short-term period of fasting may have benefits during chemotherapy. Chronic fasting is not recommended for people with cancer at risk for weight loss or a suppressed immune system.
^ Cléir, Síle de (5 October 2017). Popular Catholicism in 20th-Century Ireland: Locality, Identity and Culture. Bloomsbury Publishing. p. 101. ISBN 9781350020603. Catherine Bell outlines the details of fasting and abstinence in a historical context, stating that the Advent fast was usually less severe than that carried out in Lent, which originally involved just one meal a day, not to be eaten until after sunset.
Prolonged very low calorie diets can cause physiological changes that may cause the body to adapt to the calorie restriction and therefore prevent further weight loss.  Intermittent fasting attempts to address this problem by cycling between a low calorie level for a brief time followed by normal eating, which may prevent these adaptations. However, research does not consistently show that intermittent fasting is superior to continuous low calorie diets for weight loss efficiency.
Fasting is an ancient practice sparking new interest in both pop and scientific culture. Entrepreneurs, venture capitalists and a variety of celebrities have extolled its virtues in helping them lose weight, while medical experts are intrigued by the possibility that it may enhance cognitive functioning and longevity and help treat and prevent some diseases.
A diagnostic fast refers to prolonged fasting from 8–72 hours (depending on age) conducted under observation to facilitate the investigation of a health complication, usually hypoglycemia. Many people may also fast as part of a medical procedure or a check-up, such as preceding a colonoscopy or surgery. Fasting may also be part of a religious ritual.