But followers beware, says nutrition researcher Michelle Harvie. Dieters going keto tend to lose weight, but the diets are low in fiber and high in saturated fat, which is a risk for cardiovascular disease. “And there is increasing evidence that its effect on the gut microbiome is pretty adverse,” says Harvie. “The gut microbiome is a poorly understood but potentially important part of our metabolic health. And if you mess that up, you’re in trouble.”
I know people who say they go without television or movies, and they call these "fasting" times. I'm not opposed to that definition of fasting-fasting does imply that we are giving up one thing in order to replace it with something else, and in the Bible sense, specifically to replace it with prayer. But in the main, I believe fasting has to do with our abstaining from food. Second, biblical fasting is linked with serious seasons of prayer. The more seriously we approach prayer and fasting, the more serious the results we will experience.
The fasting periods were often called ‘cleanses’, ‘detoxifications’, or ‘purifications’, but the idea is the same – to abstain from eating food for a certain period of time for health reasons. People imagined that this period of abstinence from food would clear their bodies’ systems of toxins and rejuvenate them. They were more correct than they knew.
The trial, which aimed to investigate how food deprivation affects the aging process, involved 218 normal and slightly overweight men and women between the ages of 21 and 51. Of the group, 143 of them were tasked with following CR, eating 25 percent fewer calories than usual — a decrease deemed feasible based on animal studies. They were to keep this regimen for two years with help from a behavioral intervention team and dietitians to make sure they were getting basic nutrition.
As an expression of lamentation and/or penitence, fasting nearly always is associated with weeping ( Judges 20:26 ; Esther 4:3 ; Psalm 69:10 ; Joel 2:12 ), confession ( 1 Sam 7:6 ; Dan 9:3 ), and the wearing of sackcloth ( 1 Kings 21:27 ; Neh 9:1 ; Esther 4:3 ; Psalm 69:10 ; Dan 9:3 ). In the New Testament Jesus chides the hypocritical Pharisees for disfiguring their faces when they fast ( Matt 6:16-18 ), a reference no doubt to the custom of smearing themselves with ashes. These objects and actions had no intrinsic penitential value but in a culture in which inner feelings were commonly displayed or even dramatized, when done sincerely they effectively communicated contrition. It became easy, however, for the outward exhibition of repentance to take the place of a genuine, inner attitude and thus become an act of hypocrisy.
All Oriental Orthodox churches practice fasting; however, the rules of each church differ. All churches require fasting before one receives Holy Communion. All churches practice fasting on most Wednesdays and Fridays throughout the year as well as observing many other days. Monks and nuns also observe additional fast days not required of the laity.
Hey! I've been following this site for a while but I'm so busy that I've never been able to get around to a lot of this. I'm a 17 year old female in high school, and I take college level classes and work a lot after school, so I'm constantly busy between work, homework, and school itself. I also lack willpower a lot, which I think is why I struggle to lose weight so much. With such a busy schedule and such little willpower, what do you think would be the best way for me to lose weight and rather quickly (though healthily)? I'm 5'5 and I weigh 240 pounds.
On Wednesday and Friday of the first week of Great Lent the meals which are taken consist of xerophagy (literally, "dry eating") i.e. boiled or raw vegetables, fruit, and nuts.[47] In a number of monasteries, and in the homes of more devout laypeople, xerophagy is observed on every weekday (Monday through Friday) of Great Lent, except when wine and oil are allowed.
Insulin rises when we eat, helping to store the excess energy in two separate ways. Sugars can be linked into long chains, called glycogen and then stored in the liver. There is, however, limited storage space; and once that is reached, the liver starts to turn the excess glucose into fat. This process is called De-Novo Lipogenesis (meaning literally Making Fat from New).
One potential disadvantage of this schedule is that because you typically cut out a meal or two out of your day, it becomes more difficult to get the same number of calories in during the week. Put simply, it's tough to teach yourself to eat bigger meals on a consistent basis. The result is that many people who try this style of intermittent fasting end up losing weight. That can be a good thing or a bad thing, depending on your goals.
Fasting helps you build a better brain, too. Intermittent fasting increases a protein in your brain called BDNF that researchers have nicknamed “Miracle-Gro for your brain.”[7] BDNF improves learning and memory and can help you forge stronger neural pathways, making your brain run faster and more efficiently, which is especially important as you age.
Side effects of fasting include dizziness, headaches, low blood sugar, muscle aches, weakness, and fatigue. Prolonged fasting can lead to anemia, a weakened immune system, liver and kidney problems, and irregular heartbeat. Fasting can also result in vitamin and mineral deficiencies, muscle breakdown, and diarrhea. When you drink laxative concoctions during a fast, there is an increased risk of fluid imbalance and dehydration.
Hello Adrian, my name is Rita. I am 61 years old and just retired from 30 years of teaching! The last 12 years I taught 3rd grade! I have gained weight and become very depressed! I am 5'4" and weigh 208 pounds! Terribly obese! I have just been diagnosed with sleep apnea, and I take blood pressure meds! (And antidepressants) Please help! I use to be energetic and a lot of fun! I would love for my husband of 37 years to find me desirable again! Please tell me how I should start to see quick results! I would like to weigh 135 pounds, which is 73 pounds to lose! Is this possible? I am desperate!😧 but lack motivation! After reading your articles, I am ready to try! Thanks for hearing me out! Your guidance on how I should begin will be greatly appreciated! With gratitude, Rita from Mississippi!
Studies show that intermittent fasting accelerates weight loss. In a 2015 review pooling 40 different studies, participants shed on average 10 pounds in a 10-week period.[1] Another study found that obese adults following an “alternate day” intermittent fasting schedule (eating 25 percent of their daily calories on one day, and eating normally the following day) lost up to 13 pounds over 8 weeks.[2]
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Fasting during religious festivals is also very common. Common examples are Maha Shivaratri (Most people conduct a strict fast on Maha Shivratri, not even consuming a drop of water ), or the nine days of Navratri (which occurs twice a year in the months of April and October/November during Vijayadashami just before Diwali, as per the Hindu calendar). Karwa Chauth is a form of fasting practised in some parts of India where married women undertake a fast for the well-being, prosperity, and longevity of their husbands. The fast is broken after the wife views the moon through a sieve. In the fifth month (Shravan Maas) of the Hindu calendar, many celebrate Shraavana. During this time some will fast on the day of the week that is reserved for worship of their chosen god(s), while others will fast during the entire month.[82]

The drawbacks were clear. The men became obsessed with food to the exclusion of everything else in their life, and when the calorie restriction ended, they all over-reacted. Within a few weeks, they regained all of the lost weight plus about 10 percent more. Other studies have come to similar conclusions. So starvation-type diets may not be ideal for the average person. Your body will tend to shut down various processes in order to survive. For example, by reducing thyroid function, your body will not burn as many calories.

For Eastern Orthodox Christians, fasting is an important spiritual discipline, found in both the Old Testament and the New, and is tied to the principle in Orthodox theology of the synergy between the body (Greek: soma) and the soul (pneuma). That is to say, Orthodox Christians do not see a dichotomy between the body and the soul but rather consider them as a united whole, and they believe that what happens to one affects the other (this is known as the psychosomatic union between the body and the soul).[47][48] Saint Gregory Palamas argued that man's body is not an enemy but a partner and collaborator with the soul. Christ, by taking a human body at the Incarnation, has made the flesh an inexhaustible source of sanctification.[49] This same concept is also found in the much earlier homilies of Saint Macarius the Great.
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.
Side effects of fasting include dizziness, headaches, low blood sugar, muscle aches, weakness, and fatigue. Prolonged fasting can lead to anemia, a weakened immune system, liver and kidney problems, and irregular heartbeat. Fasting can also result in vitamin and mineral deficiencies, muscle breakdown, and diarrhea. When you drink laxative concoctions during a fast, there is an increased risk of fluid imbalance and dehydration.
Just began this 16:8 IF with Keto. I track macros and split them into two meals for my eating window. It works out to 40grams of protein each meal.. Isn’t this a lot of protein in one meal? Should I do less than my macros say because it’s two meals instead of three? Just checking because I thought I read somewhere about not consuming too much protein in a meal. Thank you.

There are a couple of other caveats here. Fasting diets require working through hunger, saying no to the bagels and muffins put out in your morning meeting or the food at your business lunch. So it’s no surprise that many people can’t stick to fasting diets long enough to keep the weight off. In another 2018 review of the literature on fasting’s impact on weight, the researchers note, “Dropout rates have been as high as 40 percent. Thus, despite the statistical significance of weight loss results, the clinical significance and practicality of sustaining an [intermittent fasting] regimen are questionable.”


Now there's certainly an issue of food that is associated with many seasons of prayer and fasting, and let me quickly add this: control of eating is a valid reason to fast. The purpose is not the number of pounds you might lose during a fast, but rather, trusting God to help you regain mastery over food during a fast. Jesus said, "The spirit is . . . willing, but the flesh is weak" (Matt. 26:41). Fasting is a means of bringing the flesh into submission to the Lord so He can strengthen us in our mastery over our own selves. Fasting in the flesh makes us stronger to stand against the temptations of the flesh. Those temptations very often deal with food.
From a Christian perspective, there are many options. One may go on only fruits and vegetables for a day or more. One may do a complete fast, involving only water and no food for a specific period of time. One may skip breakfast intentionally to pray and focus on God, and then eat lunch. Caloric restriction, especially when one is not doing complete food fast, offers the opportunity to live what some have described as a “fasted life.” The key is to choose a plan that works for you at that time and to start small. In all cases, the important thing is to intentionally focus on God in prayer.
“There’s really no conclusive evidence that there’s any benefit,” Sasson says. The German Cancer Research Center study qualified its findings by noting that the positive results weren’t noticeably better than those experienced by subjects who adopted a conventional calorie-reduction diet. In other words, it works, but not notably better than the alternative. (Sasson also offered a helpful list of individuals who should not give intermittent fasting a try: pregnant women and anyone with diabetes, cancer, or an eating disorder.)
3 days in a 16:8 ration – my body loves it. I don’t feel famished and look forward to my 8 hrs of eating window. I keep calories in check with a healthy balanced diet. My exercise begins after my last hour of fasting, I eat a few fruits (mango and raspberries) and an avocado (topped with a homemade crushed walnut dressing) and I’m good to lift weights and run. My body feels light and healthy. Amazing solution to any fitness junky.
Another aspect of fasting for God is comparable to a person dedicating an action to a cause. For God and country was, at one time, a familiar declaration in the United States.  It implied that the action being taken was to answer a noble call and serve a higher motive, the expectation of reward or compensation being far removed. The motivation came from a spiritual, emotional and dedicated commitment to do what is right. Similarly, a fast may be undertaken for God because it represents a lofty act, a selfless commitment to an act considered meritorious and virtuous.
On its web site, the Academy of Nutrition and Dietetics says that although there is evidence that intermittent fasting diets may help prevent chronic disease, more research is needed. It doesn't recommend the diet because "it is not a realistic long-term solution.” The academy also notes that "any variation of fasting may make a person irritable, cause daytime sleepiness/sleeplessness at night, and can even lead to dehydration."
7. Are you craving foods? Paying attention to your relationship with food during fasting is helpful to assess what’s working and what isn’t to build longer-term habits. For example, having a sweet tooth may be a major issue for you typically, but avoiding sugar and restricting calories may change things. Or maybe you notice you are craving greens or meat or another food. This may be from eliminating so many foods that the body is missing certain nutrients.
The purpose of fasting is never explicitly stated in Scripture but its connection to penitence, mourning, and supplication suggests a self-denial that opens one to God and to the immaterial aspects of life. Inasmuch as food and drink typify life in the flesh and all its demands and satisfactions, their absence or rejection speaks to the reality of a higher dimension, one in which the things of the spirit predominate. The theology of fasting, then, is a theology of priorities in which believers are given the opportunity to express themselves in an undivided and intensive devotion to the Lord and to the concerns of the spiritual life.

Pope Pius XII had initially relaxed some of the regulations concerning fasting in 1956. In 1966, Pope Paul VI in his apostolic constitution Paenitemini, changed the strictly regulated Roman Catholic fasting requirements. He recommended that fasting be appropriate to the local economic situation, and that all Catholics voluntarily fast and abstain. In the United States, there are only two obligatory days of fast – Ash Wednesday and Good Friday. The Fridays of Lent are days of abstinence: eating meat is not allowed. Pastoral teachings since 1966 have urged voluntary fasting during Lent and voluntary abstinence on the other Fridays of the year. The regulations concerning such activities do not apply when the ability to work or the health of a person would be negatively affected.

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