An understanding of the physiological effects of fasting began to evolve in the latter part of the 19th century, when some of the first organized studies of fasting were carried out in animals and humans. In the 20th century, as more became known about nutrition and the nutritional requirements of the human body, methods of fasting became increasingly sophisticated, and a wide array of approaches emerged. For example, fasting was used as a treatment and as a form of disease prevention, and it was carried out in various settings (e.g., in a hospital or clinic or at home). Some fasting methods, particularly those applied in the treatment of chronic diseases, lasted more than a month, allowed for the consumption of only water or calorie-free tea, and included exercise and enemas. Other methods, generally referred to as modified fasting, allowed for the intake of 200 to 500 kilocalories per day (daily calorie needs of adults range from about 1,600 to 3,000 kilocalories, depending on sex, age, and activity level) and sometimes included psychological or spiritual therapy; depending on the particular method used, calories usually were in the form of bread, vegetable broth, fruit juice, honey, or milk. Modified fasting was distinguished from a very low-calorie diet, which allowed up to 800 kilocalories per day and typically was aimed at inducing substantial weight loss. Intermittent fasting involved cyclic periods of calorie restriction, such as a 24-hour period of fasting followed by a 24-hour period of regular calorie consumption.
American King James Version×) with the right approach of outgoing love (Isaiah 58:6-10 Isaiah 58:6-10 6 Is not this the fast that I have chosen? to loose the bands of wickedness, to undo the heavy burdens, and to let the oppressed go free, and that you break every yoke? 7 Is it not to deal your bread to the hungry, and that you bring the poor that are cast out to your house? when you see the naked, that you cover him; and that you hide not yourself from your own flesh? 8 Then shall your light break forth as the morning, and your health shall spring forth speedily: and your righteousness shall go before you; the glory of the LORD shall be your rear guard. 9 Then shall you call, and the LORD shall answer; you shall cry, and he shall say, Here I am. If you take away from the middle of you the yoke, the putting forth of the finger, and speaking vanity; 10 And if you draw out your soul to the hungry, and satisfy the afflicted soul; then shall your light rise in obscurity, and your darkness be as the noon day:
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
Thanks for your insight, there are millions of people throughout the world who fast for religious reasons, it is a part of honoring their faith. If someone is fasting to lose weight, improve their health, improve immunity and decrease their insulin sensitivity (or any of the other many health benefits associated with fasting) then yes I agree we promote and encourage you to drink water throughout your fasting days. Why? Drinking water helps keep the body hydrated which is important since we are made up of more than 70% water, it helps you from being dehydrated, which when people feel dehydrated they often feel hungry and want to eat and lastly water helps flush toxins and waste materials from the body. When fasting you will be breaking down waste and other by products so it is important to flush them out of your body; this will also aid your digestion and improve your overall well being.
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John Calvin, the figurehead of the Reformed tradition (the Continental Reformed, Congregational, Presbyterian, and Anglican Churches) held that communal fasts "would help assuage the wrath of God, thus combating the ravages of plague, famine and war." In additional, individual fasting was beneficial in that "in preparing the individual privately for prayer, as well as promoting humility, the confession of guilt, gratitude for God's grace and, of course, discipling lust." As such, many of the Churches in the Reformed tradition retained the Lenten fast in its entirety. The Reformed Church in America describes the first day of Lent, Ash Wednesday, as a day "focused on prayer, fasting, and repentance" and considers fasting a focus of the whole Lenten season, as demonstrated in the "Invitation to Observe a Lenten Discipline", found in the Reformed liturgy for the Ash Wednesday service, which is read by the presider:
Studies on every-other-day fasting show mixed results. One published in 2010 in the Nutrition Journal suggested that the technique was effective among a group of obese patients. A group of 16 participants ate only one meal – lunch – every other day, and they were limited to about 500 calories. That's the same amount of calories women consume on the Fast Diet's fasting days. On the days when the study participants were not fasting, they were not constrained to any rules. Over the course of eight weeks, the participants lost an average of 12 3/10 pounds.
A systematic review of 40 studies found that intermittent fasting was effective for weight loss, with a typical loss of 7-11 pounds over 10 weeks.  There was much variability in the studies, ranging in size from 4 to 334 subjects, and followed from 2 to 104 weeks. It is important to note that different study designs and methods of intermittent fasting were used, and participant characteristics differed (lean vs. obese). Half of the studies were controlled trials comparing the fasting group to a comparison group and/or a control group (either continuous calorie restriction or usual lifestyle), with the other half examining an intermittent fasting group alone. A brief summary of their findings:
In many ways, the devil uses this same tactic today. He calls our attention to how beautiful and refreshing certain foods and beverages appear. It's difficult to go through a day without seeing enticing food and beverage commercials on billboards, on television, and in magazines. Foods are presented in the most tempting ways in stores, restaurants, and on menus. The devil says the same thing to us he said to Eve:"Has God really said you can't have a bite of this?"
One reason experts tell people not to cut way back on calories is that it can slow your metabolism, making it even harder to lose weight. But studies show that fasting from time to time can be an effective strategy for weight loss. In addition, cutting calories on a couple of days instead of every day may help preserve muscle, so you lose mostly fat.
Pros: While 24 hours may seem like a long time to go without food, the good news is that this program is flexible. You don’t have to go all-or-nothing at the beginning. Go as long as you can without food the first day and gradually increase fasting phase over time to help your body adjust. Pilon suggests starting the fast when you are busy, and on a day where you have no eating obligations (like a work lunch or happy hour).
Carbs are only problematic when eaten excessively, beyond what your body requires. As long as you are eating low calories then carb intake will make very little difference in respect to fat loss. In other words, two diets of equal calories with varying levels of carb intake will result in the same level of fat loss. If you are still unsure then you can read this brilliant article by Lyle McDonald, Low Carbohydrate Diets Have No Metabolic Advantage. In addition, carbs in the main meal serve very important functions such as increasing leptin (improved satiety and metabolic rate), refilling depleted muscle glycogen stores and triggering the release of serotonin which will improve your quality of sleep and make you feel good.
The Fast Diet is only an eating pattern, but that doesn't mean you shouldn't exercise. In fact, being physically active lowers your risk of heart disease and diabetes, helps keep weight off and increases your energy level. Most experts suggest getting at least 30 minutes of moderate-intensity exercise – like brisk walking – most or all days of the week.
“…a progression should be observed in your fasting, especially if this discipline is new to you and you are unfamiliar with its physical effects. Don’t start out with a weeklong water fast! Begin by skipping one meal each day for two to three days and setting aside the money it would have cost to give to the poor. Spend the time praying that you would have used for eating."
If you have spent any time looking for a diet program on the internet, you know exactly what I am talking about. Every few years there’s some new miracle health secret being discussed or marketed all over social media sites like Facebook and Reddit. These fads even infiltrate top-level health forums and have fitness “gurus” swearing they are the answer to your prayers.
You can still get great benefits while sneaking in a cup of coffee however if you want optimal results nothing should enter your stomach other than water while fasting. Not even meds. One of the reasons that the intermittent fasting is so effective is that the enzymes in your gut are allowed to rest. Your 8 hour window should start as soon as anything other than water is ingested which includes coffee. Again, that is the strict answer but you can certainly still get good benefits even if you have your coffee during your fast
That breakthrough might be in the realm of the spirit. It may be in the realm of your emotions or personal habits. It may be in the realm of a very practical area of life, such as a relationship or finances. What I have seen repeatedly through the years-not only in the Scriptures but in countless personal stories that others have told me -- is that periods of fasting and prayer produce great spiritual results, many of which fall into the realm of a breakthrough. What wasn't a reality . . . suddenly was. What hadn't worked . . . suddenly did. The unwanted situation or object that was there . . . suddenly wasn't there. The relationship that was unloving . . . suddenly was loving. The job that hadn't materialized . . . suddenly did.
Tisha B'Av and Yom Kippur are the major fasts and are observed from sunset to the following day's dusk. The remaining four fasts are considered minor and optional fasting is only observed from sunrise to dusk. Both men and women can choose to observe them, and a rabbi may give a dispensation if the fast represents too much of a hardship to a sick or weak person, or pregnant or nursing woman.
^ Jump up to: a b c Harris, L; Hamilton, S; Azevedo, LB; Olajide, J; De Brún, C; Waller, G; Whittaker, V; Sharp, T; Lean, M; Hankey, C; Ells, L (February 2018). "Intermittent fasting interventions for treatment of overweight and obesity in adults: a systematic review and meta-analysis". JBI Database of Systematic Reviews and Implementation Reports. 16 (2): 507–547. doi:10.11124/JBISRIR-2016-003248. PMID 29419624.
This handy reference guide, Seven Basic Steps to Successful Fasting and Prayer, will help make your time with the Lord more spiritually rewarding. I encourage you to keep it with you during your fast and refer to it often because it gives easy-to-follow suggestions on how to begin your fast, what to do while you fast, and how to end your fast properly.
Getting back to intermittent fasting, many studies have confirmed the health benefits of calorie restriction, and it seems clear that eating less is part of the equation if you want to live longer. Interestingly, research4 has shown that life-long calorie restriction in mice "significantly changes the overall structure of the gut microbiota" in ways that promote longevity. So one reason why calorie restriction may lengthen lifespan appears to be due to the positive effect it has on gut microbiota.
^ Epps, David (20 February 2018). "Facts about fasting". The Citizen. Retrieved 16 March 2018. In Methodism, fasting is considered one of the “Works of Piety.” The Discipline of the Wesleyan Methodist Church required Methodists to fast on certain days. Historically, Methodist clergy are required to fast on Wednesdays, in remembrance of the betrayal of Christ, and on Fridays, in remembrance of His crucifixion and death.
Those desiring to receive Holy Communion keep a total fast from all food and drink from midnight the night before (see Eucharistic discipline). The sole exception is the Communion offered at the Easter Sunday midnight liturgy, when all are expressly invited and encouraged to receive the Eucharist, regardless of whether they have kept the prescribed fast.