Research7,8,9 has shown that intermittent fasting results in many of the same benefits as calorie restriction — even if you don't place any restrictions on the number of calories you consume when you do eat. This was demonstrated in a 2013 review,10 which found a broad range of therapeutic benefits of intermittent fasting, even when total calorie intake per day did not change, or was only slightly reduced. Research included in that review, and other published studies, indicate that intermittent fasting can help:
When you consistently eat every few hours and never miss a meal, your body becomes very inefficient at burning fat as a fuel, and this is where the trouble starts. It's important to recognize that, with few exceptions, you cannot burn body fat if you have other fuel available, and if you're supplying your body with carbohydrates every few hours, your body has no need to dive into your fat stores. When you apply intermittent fasting you not only avoid this but also will typically decrease your food costs and increase your health.

Fasts can be performed for varying lengths of time, depending on the person and his or her health requirements. For chronic conditions, therapists recommend from two to four weeks to get the most benefits. Seven-day fasts are also commonly performed. A popular fasting program for prevention and general health is a three-day fast taken four times per year, at the change of each season. These can be easily performed over long weekends. Preventative fasts of one day per week are used by many people as well.
It’s a good idea to weigh yourself before starting (and then again at the same time each week), and also to take chest, waist and hip measurements. The rate that you’ll lose depends on your age, levels of activity and your own body – so don’t be disheartened if you’re losing a pound a week while others are losing five or more. Typically weight loss will be faster at the beginning of the diet, and for those with a lot of weight to lose to reach a healthy weight (see this calculator to find out what a healthy weight - or BMI - is for someone of your height and weight).
Aside from these official days of fasting, Jews may take upon themselves personal or communal fasts, often to seek repentance in the face of tragedy or some impending calamity. For example, a fast is sometimes observed if a sefer torah is dropped. The length of the fast varies, and some Jews will reduce the length of the fast through tzedakah, or charitable acts. Mondays and Thursdays are considered especially auspicious days for fasting. Traditionally, one also fasted upon awakening from an unexpected bad dream although this tradition is rarely kept nowadays.
The purpose in fasting for God is not about giving up food; it is about removing the obstacles that get in the way of fully focusing on Him. Human beings are conditioned to eat, usually 3 meals a day and snacks. We are so focused on what we are going to eat next, we leave very little room in our minds for thinking about God. Removing the food will free up your mind so you can meditate on God.

By the 21st century, although fasting clearly was applicable in some instances of disease, such as in certain acute diseases (particularly when accompanied by a loss of appetite), whether fasting in other instances was beneficial to human health remained unclear. For example, whereas research in humans had suggested that intermittent fasting carried out over 15 days improved insulin-mediated glucose uptake into tissues, studies in rodents had indicated that such fasting, carried out over the long-term, promoted glucose intolerance and the release of damaging oxidants from tissues.
This mirrored some of what researchers were finding in non-human primates. Rhesus monkeys share 93 percent of their genetic makeup with humans and usually live to about 26 in captivity. In one study on 76 rhesus monkeys that’s been running since 1989 at the Wisconsin National Primate Research Center, monkeys on a 30 percent calorie cut lived, on average, two to three years longer than control monkeys. Another ongoing study, started in 1987 by the National Institute on Aging on 121 rhesus monkeys, hasn’t detected the same boost to longevity. But CR has worked remarkably well for the 10 males that started the diet later in life. At least four have lived past age 40, including one to 43 — a record for the species.
It may sound really hard at first, but at least eight hours of the 16 is spent sleeping. There's also a lot of downtime between dinner and sleeping that adds up. Just be patient with yourself, and you'll find your body adjusting to this new eating schedule in no time. If you're looking to get started now, what better way than planning what you're going to eat during your eight-hour eating window?

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.

^ Stravinskas, Peter M. J.; Shaw, Russell B. (1 September 1998). Our Sunday Visitor's Catholic Encyclopedia. Our Sunday Visitor. ISBN 9780879736699. The so-called black fast refers to a day or days of penance on which only one meal is allowed, and that in the evening. The prescription of this type of fast not only forbids the partaking of meats but also of all dairy products, such as eggs, butter, cheese and milk. Wine and other alcoholic beverages are forbidden as well. In short, only bread, water and vegetables form part of the diet for one following such a fast.


Not only that, but growth hormone is increased during fasted states (both during sleep [5]and after a period of fasting). Combine this  increased growth hormone secretion:[6], the decrease in insulin production (and thus increase in insulin sensitivity [7]), and you’re essentially priming your body for muscle growth and fat loss with intermittent fasting.
It is important to note that no variables are changing in regards to my workout, from before or during the experiment. This is the same training style I have used for the last couple years. The only things that change are the amount of weight at which I use. As my strength goes up, I go up in weight to keep the same type of rep range and difficulty.

Do you have a hunger for God? If we don’t feel strong desires for the manifestation of the glory of God, it is not because we have drunk deeply and are satisfied. It is because we have nibbled so long at the table of the world. Our soul is stuffed with small things, and there is no room for the great. If we are full of what the world offers, then perhaps a fast might express, or even increase, our soul’s appetite for God. Between the dangers of self-denial and self-indulgence is the path of pleasant pain called fasting. [John Piper].


The Hebrew verb sum [Wx] is the only one used to describe fasting as a religious exercise. It (and its cognate noun som [/x]) conveys the explicit meaning "to abstain from food" and thus occurs regularly as a technical religious term. The Greek verb nesteuo [nhsteuvw] and its companion noun nesteia [nhsteiva] occur consistently in the Septuagint as translations of Hebrew sum [Wx] and som [/x] and as the usual terms for fasting in the New Testament.
1) A soul cleansing. How often we forget that our bodies are the temple of the Lord—especially when deciding what to eat! Fasting is a great time to remember the spiritual connection we have to our physical bodies. Without the toxins we put in our bodies, we not only give our bodies a break from the digestive process, but we also allow our spirits to be detoxed.  Fasting is a faith-move, an expectation we have that God will fill us with His Holy Spirit, just as He promised. But as Christ told His disciples, “[N]o one pours new wine into old wineskins. Otherwise, the wine will burst the skins, and both the wine and the wineskins will be ruined. No, they pour new wine into new wineskins." By fasting, we meditate cleanses the soul and makes it new so we can receive the Holy Spirit and become empowered to live for Christ in a new way.
Hi I just started OMAD or 24-HIIT fasting. But I found myself eating more calories than eating 3 meals a day, I used to eat around 1300cal per day but now around 1500cal. I wonder if I’ll gain weight this way. I read some articles and they said if I start eating at dinner time, I should just eat the amount I usually eat for dinner like 500cal. I wonder if that is right.

Keep in mind; the purpose of a fast is to draw closer to The Lord. You are setting aside a specific time to fill up with more of God. It’s not a competition; don’t overthink it. Jesus lived as one of us for over thirty years, and fasted often. He understands what you’re going through. Matthew tells about one of Jesus’ fasts in Matthew 4:2, “After fasting forty days and forty nights, he was hungry” (NIV). This happened just before Jesus was tempted in the desert and then started His full-time ministry. Don’t underestimate the power of taking a step closer to God.
Isn’t it interesting that we in the Western world think going for 12 hours w/o water is harmful? Millions do this and it seems w/o much harm. As a person with an autoimmune, this has been really helpful in tracking down the food which really bothers me. The list of have-not is endless and really bums me out BUT at least I know what I can put in my mouth w/o too much harm. 1 out of 3 suffer from some kind of skin issue, most all being traced back to what you put in your mouth. If one doesn’t stop putting stuff in their mouths how would one EVER know?

Jesus’ statements concerning fasting are simple and straightforward. His disciples will fast (Luke 5:33-35 Luke 5:33-35 33 And they said to him, Why do the disciples of John fast often, and make prayers, and likewise the disciples of the Pharisees; but your eat and drink? 34 And he said to them, Can you make the children of the bridal chamber fast, while the bridegroom is with them? 35 But the days will come, when the bridegroom shall be taken away from them, and then shall they fast in those days. 

Once or twice per week you can have a treat. Remember you will have 600-1000 calories to work with in the main meal. This should make it pretty easy to enjoy some of your favorite foods or go out to a restaurant with friends/family. Just make sure to not go over the calorie budget for the day. If you do end up going over the calorie budget for the day then you can compensate by slightly reducing calories the following days.
People who use insulin or drugs like metformin need to eat regularly, warns Foroutan. "If you go too long between meals you risk having your blood sugar fall way too low, which could be incredibly dangerous.” Skipping breakfast or avoiding snacks can be especially bad for people with diabetes because having consistent meals can prevent spikes in blood sugar and strengthen the effectiveness of their medication.

God has reminded me the importance of preparation. I am not much for planning or preparing food in advance. However, since beginning the fast, the Lord has shown me that if I don't plan and prepare my food I will trip, fall or fail. There are so many temptation in an office setting. But, I was reminded that it is the same in the spirit. If I don't prepare by seeking him in prayer and worship daily, I will also trip, fall or fail.
In some specific periods of time (like Caturmasya or Ekadashi fasting) it is said that one who fasts on these days and properly doing spiritual practice on these days like associating with devotees -sangha, chanting holy names of Hari (Vishnu, Narayana, Rama, Krishna) and similar (shravanam, kirtanam vishno) may be delivered from sins.[citation needed]

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.


The Hebrew verb sum [Wx] is the only one used to describe fasting as a religious exercise. It (and its cognate noun som [/x]) conveys the explicit meaning "to abstain from food" and thus occurs regularly as a technical religious term. The Greek verb nesteuo [nhsteuvw] and its companion noun nesteia [nhsteiva] occur consistently in the Septuagint as translations of Hebrew sum [Wx] and som [/x] and as the usual terms for fasting in the New Testament.
In addition to the fasts mentioned above, Roman Catholics must also observe the Eucharistic Fast, which involves taking nothing but water and medicines into the body for one hour before receiving the Eucharist. The ancient practice was to fast from midnight until Mass that day, but as Masses after noon and in the evening became common, this was soon modified to fasting for three hours. Current law requires merely one hour of eucharistic fast, although some Roman Catholics still abide by the older rules.
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