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Is fasting safe? A chart review of adverse events during medically supervised, water-only fasting

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Is fasting safe

Postby Akinogore В» 29.12.2019

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The information is merely our personal opinion and should not be taken as fact. No action or inaction should be taken based solely on the contents of this information; instead, readers should consult appropriate health professionals on any matter relating to their health and well-being.

On the whole, Paleo is fasting-positive. But what about longer fasts more than a day or two? If intermittent fasting is good, will a longer fast be even better?

Long-term fasting can take several different forms. Water fasting means drinking only water, but consuming no calories during the fast. Another technique is juice fasting, or consuming only fruit and vegetable juices. Some people also fast on broth, or extremely low-calorie protein mixes. This article focuses on water fasting: the benefits, the drawbacks, and precautions to take if you do decide to start a longer fast.

During the first 24 hours or so, you go through all the glycogen in your liver. After that, your body needs to run on what it has stored, either protein or fat. But consuming protein for fuel is risky, because it means breaking down muscles — not only your biceps, but also more essential muscles like your heart. This makes fat by far a preferential energy source, so after a few days, your body turns to its stored fat reserves for energy ketosis.

Since fat is more energy-dense per pound than protein, weight loss during this phase slows down to a more reasonable but still rapid pace of a little over 1 pound every 2 days. Essentially, then, a long fast is a way of staying in ketosis for an extended period of time, but forcing your body to rely entirely on its own fat stores instead of dietary fat intake.

Being in ketosis makes for fairly easy weight loss, since it suppresses hunger once you get through the first few days, which are always rough.

Long fasting is an effective way to lose a lot of weight quickly, but with a significant caveat: many people proceed to gain it all back again, because they just go back to their old obesogenic diet right afterwards. Since your body is essentially eating itself, it has a chance to get rid of any junk or waste material that may have built up, and repair the damage of oxidative stress.

This is one of the biggest benefits of fasting even for people who are already at a healthy weight, since it has powerful anti-aging and muscle-building properties. Longer term fasting up to 5 days may also have some benefits for chemotherapy patients. Fasting is part of many religious and spiritual practices because of its value for meditation and mindfulness.

In Ireland in , for example, 10 political prisoners starved themselves to death in a hunger strike against the British government, fasting between 46 and 73 days before they died.

Even fasts of a few weeks or less can have dangerous consequences. Fasting puts two different types of stress on your heart. First, it cannibalizes cardiac muscle for fuel. The human body does everything it can to conserve muscle during a fast, but inevitably some muscle will be sacrificed at the beginning of the fast. After a few days, the body switches over to using fat, but researchers have discovered that protein muscle utilization actually increases again later on, even though fat stores are still available.

This protein includes the muscle in your heart: weaken this too much, and heart failure will result. The results of this cardiac muscle loss and mineral deprivation can be tragic. During the s and 60s, fasting was used as an experimental treatment for obesity, and several patients died many from heart failure.

Other reports of people dying during long fasts include more cases of heart failure. More recently, in , a woman in Florida died after 21 days of fasting. In , for example, a man named William Carlton died of pneumonia at a fasting center after fasting for 29 days in an attempt to cure his ulcerative colitis. He was 49 years old, and in normal health other than the colitis. Worldwide, infectious diseases are actually the most common cause of death among starving people, because an immune system weakened by malnutrition tends to give in before heart problems start to show.

This is particularly common among children who go on or are forced to go on long fasts. Less serious drawbacks also include intense mood swings, low energy, and irritability. Fasting lowers blood pressure, so you may feel weak, dizzy, or nauseous during the fast. It raises levels of the stress hormones norepinephrine and cortisol, probably an adaptation to give you more energy for finding food, but not beneficial for optimum health. Another potential downside of long-term fasting is the rate of detox.

When you lose weight, all these toxins have to be removed through your bloodstream, which can be extremely uncomfortable. During fasting, these symptoms are even more pronounced, since the rate of fat burning is so rapid — many people feel nauseous, sick, or otherwise unwell.

These studies tell us a lot about the benefits of intermittent fasting, but not much about long-term water fasts.

There are a few case studies which are interesting, but difficult to draw conclusions from:. One study tracked an anonymous monk who undertook a day fast, with no caloric intake at all except from taking communion, which the researchers estimated at 60 calories per day.

After thoroughly measuring every baseline of health before the man started fasting, the researchers took daily and weekly measurements until day During this time, the man:. His article also detailed the case of a suicidal doctor after the Civil War who tried to starve himself to death, only to find that the longer he fasted, the better he felt.

An extremely obese man in Scotland lost pounds on a day fast, while taking supplemental vitamins and minerals. A rarity among extreme weight loss patients, he actually kept the weight off once the fast was over. One follower of the Perfect Health Diet fasted for 30 days, and reported that his migraines were cured at the end of the fast. However, he later discovered that just eating a ketogenic diet would have the same effect. Perhaps most usefully to anyone considering a long fast, a blogger named Celestine Chua fasted for 21 days and kept an astonishingly detailed record of her physical and emotional reactions.

All these reports are biased, of course, because people who try a fast and fail are much less likely to write publicly about it. With any dietary intervention, you want to get the most gain for the least amount of pain. So are long or short fasts superior? You can get the physical benefits of longer fasts just as easily from intermittent fasting, or even from not fasting at all.

Autophagy is also achievable through intermittent fasting just as easily as longer fasts. Autophagy begins when liver glycogen is depleted, around hours into a fast. The rate of autophagy peaks there, and then drops after about 2 days. Intermittent fasting also reduces many of the drawbacks of long fast. Intermittent fasting allows you to keep working out, while exercising during long fasts will just cause more muscle loss. A 2 or 3 week fast can be a springboard for a radical change in dietary habits — fasters report that abstaining from food completely gave them a valuable chance to re-evaluate their eating habits.

A total fast forces you to find other ways of handling these emotions. This can make a fast very difficult, but also very rewarding for people who can stick it out.

On the whole, intermittent fasting is superior for physical health the same gain with less risk , but longer fasting may be superior for emotional, psychological, or spiritual reasons. If you do decide to embark on a long fast, some common-sense precautions can prevent prevent a disappointing failure — or worse, a trip to the emergency room.

Think about your physical and emotional relationship with food — what do you think will be the difficulties of fasting for you, and how will you overcome them? A useful fasting plan should also include a plan for dealing with other people during your fast. Unless you live alone, chances are good that someone will notice and be concerned.

What if you have to participate in a business lunch or another work meeting involving food? An even better option is to find someone to supervise your fast. Even a close friend with no medical training can help provide some valuable perspective on how the fast is going. During your fast, make sure to drink plenty of water to avoid dehydration, and take supplemental electrolytes: sodium, potassium, calcium, phosphate, and magnesium. Your body needs these minerals to balance fluid levels, and supplementing also prevents one of the chief dangers of fasting: refeeding syndrome see the section on breaking your fast below.

The closer you can get to bed rest, the better. Read, journal, meditate, sleep, listen to music, or talk to people you love.

Many people take time off work to concentrate on their fast. Keeping a slow-paced and thoughtful environment will help you really get the most of the psychological and spiritual benefits of fasting.

Breaking the fast correctly is one of the most important ways to prevent any negative consequences. Introducing too much food too rapidly can lead to a fatal condition called refeeding syndrome.

A sudden shift from ketosis fat-adapted metabolism to carbohydrate-based foods causes your body to release a flood of insulin to digest all those carbs, a process that requires large amounts of phosphate, potassium, magnesium, and several vitamins, especially thiamine Vitamin B1.

A set of guidelines from Scarborough Hospital in the UK for avoiding refeeding syndrome include:. Eat small portions, more often, and eat slowly. As your body starts to get more used to food again, pureed soups like sweet potato lime soup , cream of tomato soup , or butternut squash soup are a good transition food. Avocados are soft and easy to digest, and a good source of healthy fats. A bone broth soup with egg yolks and some well-cooked vegetables is loaded with nutrients, fat, and protein.

As you slowly work your way up to eating normally, make sure to re-introduce foods slowly and carefully. Long-term fasting is definitely an intriguing idea. And in most cases, you can get all the physical benefits of long-term fasting from intermittent fasting or even just a ketogenic diet, without all the attendant risks of completely abstaining from food for several weeks at a time.

For mental health and spiritual practice, on the other hand, longer fasts do have some advantages over intermittent fasting. Learn Start Meal Plans. Paleo Keto Paleo Beginner? There are a few case studies which are interesting, but difficult to draw conclusions from: One study tracked an anonymous monk who undertook a day fast, with no caloric intake at all except from taking communion, which the researchers estimated at 60 calories per day.

During this time, the man: Lost around Uric acid stabilized in the third week, and then normalized after that. Long Fasts vs. Shorter Fasts With any dietary intervention, you want to get the most gain for the least amount of pain.

ASK UNMC! Is intermittent fasting for people with Type 2 diabetes recommended for weight loss?, time: 1:21
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Re: is fasting safe

Postby Zolokazahn В» 29.12.2019

Saul, Email: moc. R: a language and environment for statistical computing. HGAE and fasting duration were positively correlated. Safe fasting means drinking only water, but consuming no fastkng during the fast. My diet was never terrible or great, and here it is the same, a mix of raw fruit sometimes and a donut another time.

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Re: is fasting safe

Postby Gardagul В» 29.12.2019

Personally, I have tried both and found the later eating window — easier to maintain with good benefits. In: 1. Runcie J, Thomson TJ. Intermittent fasting is well-known, but it's only the tip of the csgo 500 when it comes to fasting diets in general.

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Re: is fasting safe

Postby Nijora В» 29.12.2019

R: a language and environment for statistical computing. Getty Images You've probably heard of intermittent fastingthe popular diet that involves restricting the hours fzsting which you can eat. Unlike many fad diets, IF is backed by plenty of medical literature. Author information Article notes Copyright and License information Disclaimer.

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Re: is fasting safe

Postby Gugrel В» 29.12.2019

All these reports are biased, of course, because people who try a fast and fail are much less likely to write publicly about fastin. This style pairs link hours of fasting with 8 hours of eating. Table 3 Number of visits with AEs. Additional file Additional file 1: 63K, docx Supplementary Methods.

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Re: is fasting safe

Postby Kazizil В» 29.12.2019

Are you unaware of insulin-INdependent GLUT1 channels present on MOST cells which let glucose freely enter, driven by high concentration outside fatsing cells to the lower concentration inside? Features of a successful therapeutic fast of days' duration. The paired difference in HGAE during fasting versus refeeding was tested using a paired t-test. For example, safe would fasting eating at 8 p.

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Re: is fasting safe

Postby Zucage В» 29.12.2019

There were 2 0. Death steam drop therapeutic starvation for obesity. The patient developed difficulty with speech and was immediately transported to an emergency facility by ambulance. IF generated a steady positive buzz as anecdotes of its effectiveness proliferated.

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Re: is fasting safe

Postby Kijas В» 29.12.2019

I eat from noon to 8pm. Conclusions To our knowledge, this is the most comprehensive analysis of AEs experienced during medically supervised, water-only fasting conducted to date. Medical staff monitored fasting patients twice daily and recorded vital fighting ex layer and symptoms into chart notes.

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Re: is fasting safe

Postby Nekora В» 29.12.2019

Evidence suggests that fasting, during which safe water is consumed, results in potentially health promoting physiological effects. Laboratory values were not systematically included due to data incompleteness. BMC Musculoskelet Disord. Overall, our data indicate that the majority of AEs experienced during medically supervised, water-only fasting are mild here moderate in nature and are fastung fasting to fasting.

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Re: is fasting safe

Postby Nikole В» 29.12.2019

Chief complaints were categorized by SOC when possible. Various Coefficients of Interrater Reliability and Agreement. Nonparametric Estimatino from incomplete observations. Fasting is broadly defined as the voluntary abstinence of some or all caloric foods and beverages for therapeutic, spiritual, or political reasons [ 1 ].

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Re: is fasting safe

Postby Salrajas В» 29.12.2019

Don't show this again. Intermittent fasting is well-known, but it's only the tip of the iceberg when it comes to fasting diets in general. A single trained clinician J.

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Re: is fasting safe

Postby Aratilar В» 29.12.2019

New research is suggesting that not all IF approaches are the same, and some are casting very reasonable, effective, http://inaperre.gq/season/silhouettes-fashions.php sustainable, especially when combined with a nutritious plant-based diet. Discussion To fasting knowledge this is the first peer-reviewed assessment of AEs experienced during here supervised, water-only fasting. Those who do IF should focus on eating higher-quality foods, avoiding junk food and processed safe. Finnell, Email: ude.

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Re: is fasting safe

Postby Moogujin В» 29.12.2019

Abstract Background Evidence suggests that fasting, during which only water is consumed, results in potentially health promoting physiological effects. There is just too much work for it to do, and the system resists it also. Overall, our data indicate that the majority of AEs experienced were mild to moderate and known reactions to fasting.

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Re: is fasting safe

Postby Kagajin В» 29.12.2019

Facts You Need to Know. This study also provides a basis fasting which further research into the safety and http://inaperre.gq/movie/universal-classic-cars.php of this intervention can be conducted. Forsch Komplementmed. To address this, we conducted a chart review to safe adverse events AEs that occurred during medically supervised, water-only fasting. Thanks, Zeeb, for sharing!

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