Reddit Reddit reviews The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting

We found 74 Reddit comments about The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting. Here are the top ones, ranked by their Reddit score.

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The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting
The Complete Guide to Fasting Heal Your Body Through Intermittent Alternate Day and Extended Fasting
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74 Reddit comments about The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting:

u/fatsthlmswede · 13 pointsr/fasting

I would recommend that you read

These books contains links to a lot of the studies that answers your questions in depth.

u/FriendofHolySpirit · 11 pointsr/TrueChristian

No it’s not sinful to break a fast. God is happy that you’re even trying, a lot of Christians don’t fast even though the Bible tells us to. I believe there’s a difference between fasting with God and fasting for him, and when it’s with him, Grace is there to help you and to empower you. There is no way I could’ve done the fasts that I have except by his grace!

I have a podcast episode i did on it if you want the link message me. Give some tips on what is helped me. Most of all I recommend this book called The Complete Guide to Fasting written by Dr Fung. It’s very informative!

Also fasting is not to get something it’s to become someone. You’re already close to God by the Blood of
Jesus. Don’t use fasting as works, it doesn’t get us stuff. It helps us to learn who we are by the finished work.

u/Lemondoodle · 9 pointsr/fasting

I highly recommend this book!

Your questions are thoroughly addressed with studies to back up the claims.

u/[deleted] · 9 pointsr/fasting

Basics of extended fasts: Electrolytes. Drink when thirsty. Zero calories. Stop if you feel sick.

Recommend you start with shorter fasts, and do more research before attempting extended fasts

Jason Fung, the complete guide to fasting

u/CharlieDarwin2 · 9 pointsr/fasting

A person would have to write an book to answer all the questions. Dr. Fung has done just that. Complete Guide to Fasting

u/crushed_oreos · 9 pointsr/fasting

Juice fasting?

Can't help you.

Water fasting?

Easy answer.

u/lgba · 8 pointsr/fasting

Here's a short bit from Dr. Jason Fung's book "The Complete Guide to Fasting".

Well worth the money.

>When food intake goes to zero (fasting), our body obviously cannot take BMR down to zero—we have to burn some calories just to stay alive. Instead, hormones allow the body to switch energy sources from food to body fat. After all, that is precisely why we carry body fat—to be used for food when no food is available. It’s not there for looks. By “feeding” on our own fat, we significantly increase the availability of “food,” and this is matched by an increase in energy expenditure.

>Studies demonstrate this phenomenon clearly. In one, fasting every other day for twenty-two days resulted in no measurable decrease in BMR. There was no starvation mode. Fat oxidation—fat burning—increased 58 percent, from 64 g/day to 101 g/day. Carbohydrate oxidation decreased 53 percent, from 175 g/day to 81 g/day. This means that the body has started to switch over from burning sugar to burning fat, with no overall drop in energy.

>In another study, four days of continuous fasting increased BMR by 12 percent. Levels of the neurotransmitter norepinephrine (also known as noradrenaline), which prepares the body for action, increased by 117 percent, keeping energy levels high. Fatty acids in the bloodstream increased over 370 percent as the body switched over from burning food to burning stored fats.

Jason Fung also runs which is worth checking out.

u/OddRel70 · 8 pointsr/keto
u/HolyGigi · 7 pointsr/Romania

Nu glumeste, eu tin o saptamana la vreo 2 luni in mod regulat si o zi in fiecare saptamana nu mananc nimic. Maxim am dus 9 zile si am mancat din reflex, m-am asezat cu sotia la masa seara, dupa munca, ea manca, si fara sa imi dau seama am inceput si io sa mananc. dar nu imi era foame deloc.

Prima zi e aiurea, in special daca mananci de obicei carbohidrati (nu esti keto sau low carb). A doua zi deja nu iti mai e foame, dar ai constant senzatia aia "ba, toti mananca in juru meu, ala o shaorma, ala o aluna, io ce fac aici?". Cam din ziua 3-4 asa deja nu mai ai nici o problema.

Ca idee, poti bea cafea sau ceai, nu doar apa. Evident, fara zahar sau lapte in ele. Singura recomandare pe care ti-o fac e sa mananci sare zilnic, ca altfel o sa te deshidratezi si nu e fun deloc. Fara sare o sa ti se faca si frig destul de tare cam din ziua a 3a si din ziua 5a-6a pot aparea deficiente serioase care sa duca la crampe musculare. Asa ca linge cateva grame de sare pe zi.

Daca vrei sa citesti despre fasting:

Daca vrei video mai light pe youtube, iti recomand canalul astuia: sau

Daca vrei video mai in detaliu pe yotube:

Daca vrei sa citesti mai mult in romana, uite aici. E despre intermittent fasting, dar se aplica aceleasi idei, evident cu diferenta ca nu mananci deloc.

u/hlades_man · 7 pointsr/fasting

Dr. Jason Fung is one of the leading researchers on the subject. If you want to dive into some of his analysis, his website is intensive dietary management

he also has published a few books. the complete guide to fasting is a good starting point.

u/maxm · 7 pointsr/ketogains

No. Intermittens fasting is fine. I have done it for years as an easy way to not gain weight, without counting calories.

But you don't get autophagy from it. That takes longer than 16 hours, and even the smallest amount of calories or protein stops autophagy.

One thing to be aware of if you do 16:8, and is low fat, is that there is an increased risk of gallstones. But for people on keto that should hardly be a problem.

I strongly recommend this book:

It is the most precise book I have read on the subject. The author also has a plethora of youtube videos. like:

u/greatkat80s · 6 pointsr/fasting

skipping meals is our society's brainwashing saying thats the worst thing to do. the body has plenty of fat stores to get energy from.

if she gets to be over the top, just eat something ketogenic like an egg/cheese omelet with vegetables. that way your body will still be burning fat and she'll be appeased since you ate breakfast.

get this book
The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting

u/idlogin21 · 6 pointsr/fasting

I would listen to the audio book or read: The Obesity Code: Unlocking the Secrets of Weight Loss

Also: The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting

Mutiple studies have shown calories are not the driving force for weight increase, insulin is.

A 2000 calories made up of pizza, pasta, ice cream, cake, doughnuts, chips, bread and juice, is very different than 2000 calories made by steak, chicken, veg, eggs, nuts, seeds, avacado and whole fruit.

Fibre is also a key component of weight management, most western diets do get nearly enough fibre. Fibre protects the body from sugar.

Add chia seeds and flaxseed to your meals.

u/RebaJ0 · 6 pointsr/keto

Read this: The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting

Fascinating. And totally debunks a lot of the "common wisdom" that extended fasting is unhealthy.

u/Iowa_Dave · 5 pointsr/intermittentfasting

Here is the good news - /r/Keto and IF are powerful for controlling blood sugar and managing diabetes.

Two years ago my A1C was 13.4 and I was in losing toes/kidney-damage territory. I went hardcore Keto 18:6 IF and frequently OMAD. MY doctor put me on Metformin and blood-pressure meds.

9 months later, my A1C was 4.9. Technically non-diabetic. I asked my doctor to take me off Metformin which she didn't like the idea of, but she agreed. 6 months later my A1C had stabilized at 5.3 and has stayed there. I'm off all diabetes and blood pressure meds and my last BP was 110/60. I lost 40 pounds. I'm 53.

Here are the most important things I can share with you;

  • If you don't want sugar in your blood, don't put it into your mouth.

  • Bread, pasta and rice are all basically complex forms of sugar.

    Eat all the meat and vegetables you want and give your body a break from high insulin levels. You've caught this early and there is no reason you can't reverse the symptoms of diabetes with delicious food and skipping a meal or two a day.

    It's really that simple.

    I can't recommend Dr. Jason Fung's book The Complete Guide to Fasting which will give you all science behind low carb diets and intermittent fasting for treating diabetes. His other book The Obesity Code is even more in depth if you want more science.

    Now here is the bad news. Doctors will likely fight you about this. I was sent to a class at a hospital after my diagnosis. The nutritionist said diabetes was progressive and irreversible and medication could only slow it down. Their goal of management is an A1C of 7.0 which means they want to keep you diabetic.

    Why? Healthy people don't make doctors any money.

    You need to take this seriously and do your homework. You can absolutely manage this and do it with food alone. But there are a lot of people who will tell you it's impossible or too hard to do.
    I've read that at least 80% of T2 diabetics could manage the disease with diet alone, but only 5% choose to do so.

    It breaks my heart when T2 diabetics I know will have a slice of pie and say "Well, I'll just up my meds tonight".

    F*ck that. I'm not going to inject insulin years from now for pie today.

    You got this. You can do it. I'll gladly answer any questions you have here or by direct message.
u/DreadyVapor · 5 pointsr/intermittentfasting

Jason Fung's blog is where many people get started. He has a whole series on fasting (intermittent and otherwise). You can get started here:

He also has a book that was published in October, The Complete Guide to Fasting, which is supposed to be very good.

Lastly, has great info on LCHF and fasting. Here's that link:

u/armeddy · 4 pointsr/croatia

S obzirom da se priča o IF, krenuo sam s tim, a prošli mjesec sam odradio i par dvodnevnih i trodnevnih postova i skroz je ok. Nisam probio granicu od trodnevnog posta što zbog društvenog pritiska, a dijelom i zbog jednostavne proždrljivosti, ali koliko sam shvatio, nakon što prebrodiš prva tri dana postaje izuzetno lagano postiti i na dulje periode. Kad se vratim u Zagreb radi faksa vjerojatno ću nastaviti s tim, dok sam doma za praznike jednostavno se ne mogu natjerati da ne jedem.

Ako tko želi znati više o tome, pročitao sam:

Do knjige sam došao gledajući ovaj video i većinu njegovih stvari (makar za neke dvojim jesi li gluposti, ovo mi se čini skroz ok):

Uglavnom, post je stvarno jako dobar za zdravlje, bilo isprekidani ili višednevni, a bome i za budžet. Osim toga, cijela stvar mi je dosta promijenila mišljenje o pretilosti i dijetama, a najviše o osjećaju gladi, šećeru i dijabetesu. Ako koga zanima još ponešto o tome, AMA.

u/KashEsq · 4 pointsr/fasting

I highly recommend reading Dr. Jason Fung's The Complete Guide to Fasting. He does a great job describing the fundamentals of how fasting works for non-scientific readers.

u/ZangiefThunderThighs · 4 pointsr/xxfitness

I've done counting calories on-and-off in the past. And what I've really taken away from it is I can be good at tracking...tracking all those extra calories I didn't need 😝

But I've had my biggest success with food this past year after discovering and reading about fasting.
The Complete Guide to Fasting, by Dr. Jason Fung (Amazon Link) is very informative and easy to read.

You don't need to do long fasts, I never have and don't plan on doing anything past a day. But following a 16:8 (16 hour fast + 8 hour feeding window) had helped me immensely. It's basically skipping breakfast (just get some coffee (black or with a little cream, NO sugar)) and delaying lunch so it's more of an afternoon snack, if anything, then dinner as normal. Following a 16:8 schedule really helped me get out of snacking at work... Which is my greatest challenge. I simply tell myself I can have that afternoon snack, but not till 3pm. By then that 2pm craving had subsided... But if it's still there then it falls within my feeding window.

The best thing about fasting is that there are so many protocols to follow, some are even do popular they have a common name (leangains, warrior diet).

I don't track calories, but I do yet to make smarter food choices (low carb, less sugar, etc...). This year I have gone from about 150 to ALMOST 140. And it's been pretty easy. No stressing, no debating if I can have this, no determining what do I have to sacrifice in order to have an indulgence. The 10# may not seem like much for nearly half a year, but I succeeded with that along with managing a of stress at work, which led to lots of junk food, a long distance relationship, and a cross country move for work.

If you don't want to commit to a $20 go check out a copy from your local library or check or out some of the subreddits to learn more:
r/fasting r/intermittentfasting r/leangains

u/Mr_Integrity80 · 4 pointsr/Stoicism
u/billcube · 3 pointsr/keto
  1. Fasting is a tool you can use to break a plateau during Keto, but the weight loss rate will not necessarily increase as your body will want to regain some lost weight during fasting.

  2. Yes, you can, as long as you feel good with it. Fasting doesn't put you in starvation mode (see Dr Fung's blog or the book The complete guide to fasting)

  3. As often as you want.

  4. No, your body will use your stored fat as energy. Hydrate with water, salt and non-caloric beverages.
u/Fantastic-2018 · 3 pointsr/keto

It's totally fine - but working up to three days may be needed.

If you're interested in fasting, I suggest you get some quality information and not just ask around - even here, with all these fabulous people! Download Dr. Jason Fung's The Complete Guide to Fasting from Amazon. Lots to learn.

u/enigmae · 3 pointsr/fasting

Some people do fat fasts, where they eat BPC / HC, others do only water fasts, they each have different benefits. Accidentally eating is tough, cause it can break some benefits of prolonged fasting.

This book by Dr Fung ( ) is a good read, about different types and benefits of fasting. I am currently on day 32 of a 50 day fast. I am doing it for weight loss, autophagy, and to adapt to ketosis for endurance athletics. I have read that 2 weeks of water-fast is supposed to be good for auto-immune rejuvenation, and others claim cancer prevention benefits. I find when i exercise, and do hot sauna, it really helps a lot with weight loss and metabolism.

I would not get caught up on the "purity" of the fast as long as it works for you, and to understand benefits for you, i hear a lot that the best fast is one that works for you, and even if your eating and it isn't technically "fasting" it is still a form of fasting.

I have seen a lot of interesting challenges, like an "egg fast challenge" or "steak fast challenge", where you only eat "eggs" or steak, etc.. for 30 days, and those are interesting threads to follow as well. Congrats on the progress and keep at it. I've only got about 20 more days to, then i have to figure out the best way to get off my fast.

u/spinspin__sugar · 3 pointsr/fasting

The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting

I just got it myself. There's a lot of fluff in it tbh and there wasn't any new info in there I didn't get from this sub and watching some YouTube videos about fasting. Dr.Fung (the author) actually has videos you can watch too on YouTube

u/IvoryNage · 3 pointsr/intermittentfasting

Also lots of people recommend this book for more information. Haven't read it myself though

The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting

u/cutercottage · 3 pointsr/xxketo4u2

oooooo I am down to talk about fasting any day u/okaybutfirstcoffee!!

I can't recall what my longest fast was. 68 hours, something like that? I'm planning to do 2-3 day fasts regularly starting at the end of August.

I love Dr Fung's book, Complete Guide to Fasting. His blog is fantastic. This is one of my favorites because it explains the hunger cycles.

Regarding your question about weight loss, extended fasting is more effective because it ramps up human growth hormone. Basically the longer you fast, the more you reverse insulin resistance, and the more resilient your body gets. After about six months of doing OMAD most days, I now notice, for example, that if I have a "sabotage day" I just. can't. eat as much as I used to. I am straight up not hungry. Whereas before if I, say, ate a bagel I would be starving an hour later. I had one last Monday and I was so full I didn't eat again until dinner. Fasting FIXES your body and I fucking love it for that because I didn't even think that was possible.

u/Espyonaj · 3 pointsr/Nootropics

Sure thing. Here's one: Features of a successful therapeutic fast of 382 days' duration

>"Prolonged fasting in this patient had no ill-effects."

If you'd like more information, I recommend Dr. Jason Fung's "Complete Guide to Fasting." link

u/nozepikuhr · 2 pointsr/fasting

He means five consecutive days. In this passage he's just saying that a 5 day fast would be better, and probably easier. In his book he advocates fasts from 16 hrs to 14 days. According to him, a 7 day fast can be done once a month. A fourteen day fast shouldn't be done more than once every 6 weeks. Anyway, a 5 day real fast, once a month, is fine. His new book is great by the way. Can't recommend it enough.

u/networkadminthrow · 2 pointsr/Fitness

Sure. It's not as hard as you would imagine. My first time trying longer fast, I went from my longest being 20 hours to 5 days. I still haven't gone farther than a week because I don't want to lose any muscle and I don't have that much fat to lose. The world record for water fasting is an obese man who fasted for over a year, btw.

So, I usually lift ~5 days a week. When fasting I completely stop lifting and just do some slow walking for a little exercise. Lifting frequently before and after fasts will prevent muscle loss. After the first day of eating again, my lifts are back to where they were or even higher.

Fasting is easier than you would imagine, it's just really boring. I have a small amount of potassium salt each day (lite salt) and caffeine/ephedrine in the morning (not necessary but helps with energy and appetite.) I don't really get hungry. Sometimes I get a 20 min wave of hunger but it goes away.

So basically just start a fast like you would, then keep going. It's easy but very boring. When fasting, my desire to eat food is more out of boredom than out of hunger.

This blog is where I studied before fasting:

He also has a book:

And this subreddt is helpful;


u/MiddlinOzarker · 2 pointsr/Fitness

I eat maintenance amount of calories outside of my fasting windows. I also conduct my normal activities including exercising while fasting. Choose the fasting regimen that suits your lifestyle. In my case I pull a 48 hour fast each week and a 22:2 fast daily. The Complete Guide to Fasting by Dr Jason Fung is excellent.

u/optoutsidethenorm · 2 pointsr/veganketo

Have you read The Obesity Code?

The advice in that book combined with these is what helped me the most:

The Complete Guide to Fasting

Eat to Live

How Not to Die

u/sknick_ · 2 pointsr/intermittentfasting

This is the book about fasting, by the doctor GSP talked to about fasting. Probably your best bet

The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting

u/PippaPrue · 2 pointsr/keto

Try intermittent fasting if you are only hungry once a day. Eat once a day and fast for the rest. You can work out in the fasted state. If morning is when you are hungry, then eat then. Once you get used to not eating three times a day, your brain does a flip and you don't even think about it. It becomes your new normal. Also, you may have to suck it up and start doing some cooking to bring some variety into your meals so they are more appealing. Most things are not very difficult to make, they just take a bit more time. Jason Fung (also a fellow Canadian) has a great new book about fasting. The Complete Guide To Fasting. Check it out!

u/idolessence · 2 pointsr/findareddit

Nope. But you could start with Bulletproof coffee in the morning and try to stop after a week or or or continue.

Check out the writings and podcast interviews of Dr. Jason Fung -

u/HITLERS_CUM_FARTS · 2 pointsr/fasting

The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting

u/KamikazeHamster · 2 pointsr/intermittentfasting

I have been reading The Complete Guide to Fasting and they recommend that if you're struggling with 1 day, then you should try a 3 to 7 day fast. While counter-intuitive, the longer fast will reset your ghrelin (hunger hormone) production. The second day is actually harder, but then hunger disappears on the third or fourth day. After that, it becomes much easier to do 1 day fasts.

If you are going to choose a longer fast, I obviously recommend doing your research to stay safe. Do not overeat once you break your fast as you'll have some serious stomach pains. Light meal to start. If you get dizzy, you might need some salt. Coffee actually contains some sodium, but remember that coffee causes an adrenaline which can spike insulin - try space your coffees out between 4 to 6 hours.

u/frogz0r · 2 pointsr/ketofasting

He is a Canadian doctor specializing in kidney functions/diabetes/weight management etc, and fasting is a major part of his protocol. He is really an amazing guy....I encourage you to look him up and find out more! r/DrJasonFung

u/neverhavearrivedhere · 2 pointsr/intermittentfasting

The FINAL answer is whatever works or you, and depends on what camp you subscribe to.

For your best bet if you want a FINAL answer, I suggest reading The Complete Guide To Fasting ( Dr. Fung is cited a lot on here, and he makes a lot of good points in that book including why he sees fasting as either water only or water/tea/coffee without additives fasting.

There are several things to take into account:

Whether or not diet sodas are truly 'bad' for you not is still up or debate-the long term effects of some of the ingredients are unknown.

Whether or not the sweetness affects insulin levels.

Whether it affects what you eat while you're not fasting. For me, I LOVE Diet Coke, but I know I drink it I'm MUCH more likely to crave and then binge sweets and carbs later in the day, so I choose not to drink it during my fast. Occasionally I'll have it as a treat.


I wish you luck on your fasting journey. You've got this!!!

u/squirrelcuisine · 2 pointsr/fasting

I noticed when I did lazy keto Id have all kinds of problems. When I did strict Keto I had much better success because calories were low but I dont think I solved my hormone problems. The book goes into why calories in calories out doesnt work (even with Keto) (basically your body adjusts.)

However do fasting and your body has no other choice than to do what it was designed to do. When you are fasting it is supported to eat your fat stores because that is all that is left.

I guess I really already knew this but the book put it all together into one place where I was finally like.

"Ah HA! This makes sense"

Now I think I have final permanent control over my weight and a new relationship with food. I schedule when I am going to eat and ignore what I previously thought was hunger pangs.

I also dont worry about skipping breakfast AND lunch. (lunch is such an expensive pain in the ass anyhow.)

I dont worry about eating 7 small meals a day (That was so stupid it wasnt funny in retrospect.)

I also know why dieting leads to plateaus and weight gains. (Looking at my Myfitness weight graphs for the past 6 years looks like a map of the himalayas.

All good stuff. This fasting thing is powerful. I think I can live with 1 day normal eating then 65 hours of fasting until I get to a healthy weight.

u/DisplacedUser · 2 pointsr/fasting

This book covers physical exertion a bit but great read.

The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting

u/GeorgeKuneKune · 2 pointsr/fasting

When you are truly fasting, ideally in a state of ketosis, you are not starving or going into “starvation mode”. Your metabolism actually stays the same and can even speed up. When you are in a fasted state you are burning stored fat that you body is then using for most of its metabolic processes, for most people there is no shortage of body fat available for this process. This is different than when you are constantly in an underfed or calorie restricted state (as the biggest loser contestants generally are). Dr. Jason Fung gets into this in his book about fasting ( and here:

u/oldcrow · 2 pointsr/keto

For books I'd recommend The Complete Guide to Fasting by Dr. Jason Fung.

I do three 42-hour fasts a week. Basically I don't eat on Monday, Wednesday and Friday. The other days I eat in a 6-hour window, generally 8am-2pm.

I love it! I get a real energy boost at about hour 36.

u/At_the_Roundhouse · 2 pointsr/xxfitness

This article is the best I’ve read on the subject.

It’s a fantastic piece, and I would recommend that all women read it, but tl;dr – Intermittent fasting works until it doesn’t. Women as a whole seem to have a harder time with it than men, though there are plenty of women who thrive on it. As with anything in fitness, take it if it works for you and makes you feel healthy, and leave it if it doesn’t. Don’t try to force it if it’s not making you feel good.

That said, the fact that you’re concerned about an eating disorder being triggered is a red flag for me. Is this just a general fear because of not eating, or do you have a history? Because if it’s the latter, I’d be cautious. Personally I enjoy it largely because it means spending less time prepping food, and as a busy person find it easier to go about my work day without thinking about food all the time. I’ve also never been a breakfast person so IF feels liberating, that I suddenly have validation/permission to skip it.

If you want more details on the how, when, and why, I recommend this book. Personally I try to eat in a 1:30pm to 9:30pm window and fast otherwise (most of the time), but that obviously wouldn’t work for a lot of people. You do you.

u/learntolivewithless · 2 pointsr/todayilearned

I read Dr. Jason Fung's book on the subject "The Complete Guide to Fasting". He does a good job of breaking down the do's and don'ts of fasting and approaches everything from a scientific perspective. He runs a clinic that treats patients with advanced stages of diabetes with his primary tool being fasting to get their body's insulin regulation working again.

Here's a quick video from Dr. Paul Jaminet on the benefits of intermittent fasting. If you're down for something longer and denser you could watch this interview Dr. Rhonda Patrick did with Dr. Valter Longo (the professor of gerontology at USC involved in the fasting study I mentioned elsewhere in this thread).

I wouldn't look at the fasting subreddit as a source for information on fasting so much as a social support network for those involved in fasting. They're a great group that encourages each other even if there's a good amount of misinformation floating around. I blame most of that on the fact fasting is such a taboo subject.

With just those few sources you'll know enough to decide if you want to give it a try or not and be better educated on the risks and benefits. (You absolutely can kill yourself with fasting if you don't know what you're doing, so don't just dive in blind).

u/RangerPretzel · 2 pointsr/intermittentfasting

It's called 42-hour fasting and is documented in the Moore/Fung book on Fasting:

u/3baid · 1 pointr/fasting

Care to elaborate?


>Insulin counter-regulates lipolysis (fat metabolism)


>The most important acutely acting anti-lipolytic hormone is insulin


>Your body's own insulin is the key to controlling your weight

Literally on the cover of The Obesity Code, by Jason Fung, the author of The Complete Guide to Fasting

Here's a video of him explaining the role of insulin in fat loss.

u/ketogrrrly · 1 pointr/xxketo

His new book is very good and an easier read, arranged better for newbie to fasting.

u/video_descriptionbot · 1 pointr/intermittentfasting

Title | Intermittent Fasting for Weight Loss w/ Jason Fung, MD
Description | Dr. Jason Fung discusses how fasting changed your hormones, enhances fat loss and why it doesn't lead to muscle loss. ➢ Complete Guide to Fasting w/ Jimmy Moore ➢ The Obesity Code: ➢Sponsored by XYMOGEN: *Get the best Berberine HCl product avail: ➢ Read the Interview Transcript: -----------------------------------------Lets Connect------------------------...
Length | 1:09:23


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u/yazheirx · 1 pointr/keto

The complete guide to fasting. I found the book on /r/fasting. Just finished it myself. Not only did it contain all the knowledge I had learned from /r/fasting but much more

u/yawadah · 1 pointr/fasting

This is an excellent resource that I would recommend to anyone who is considering fasting. Anything that can trigger an insulin response is a no-go during a fast. So even artificial sweeteners are not okay.

I apologize for being short, I cringed reading that today.

u/ketogenicendurance · 1 pointr/keto

maybe read this book?

I just IF, eat between 1pm and 7pm ish.

I am guessing bone broth would be better for a fat fast? rather than butter coffee (which do have myself).

u/Jaded_Emperor · 1 pointr/keto

Yeah that's literally just it. You just forgo food entirely for a period of time, so yeah I'd just drink water normally. It's been a while since I read about it, or at I didn't particularly focus on the mechanism, but after 2-3 days your body stops producing a hormone that causes you to feel hungry, so it's always rough the first couple days and then I just play it by ear, I don't really focus on when to break the fast, I just know that at my weight I'm not particularly worried -needing- food for any time soon, my body has a lot of it in store.

From what I've read it's not necessary to take vitamins either unless fasting for many weeks at a time.


I'm not a doctor tho, I just decided to do it

u/dkaple34 · 1 pointr/keto

The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting

I would like to see her argue with this.

u/plasticookies · 1 pointr/intermittentfasting

You should have a look at this book:

It's written by a nephrologist from Toronto who has successfully guided many of his diabetic patients through IF and other types of fasting.

u/bwerdschinski · 1 pointr/perth

Yep, love it! Intermittent fasting has changed my life for the better in a number of ways and I've lost 30kgs using it. Not for everyone, but there's many forms of intermittent fasting you can use based on your goals, existing condition, and current lifestyle.

Our introduction to the topic was the 5:2 diet Michael Mosely wrote about in "The Fast Diet" ( But the thing that made it all click for me was "The Obestiy Code" by Jason Fung ( as that went into more detail about obesity, insulin resistance, and how fasting can be used as a tool.

Following on from that Jason Fung has a great podcast with Jimmy Moore called Fasting Talk (, and together they wrote a book called "The Complete Guide to Fasting" ( which I've not got around to reading yet. It came out after I started fasting but I hope to get my hands on it soon.

As a ketogenic diet and intermittent fasting go hand in hand another one of Jimmy Moore's podcasts I've found helpful is Keto Talk (

Can't stop raving about IF, hope some of those links help :)

u/robot_cheetahs · 1 pointr/keto

the bare minimum entry into intermittent fasting just requires that you not eat before 11am or after 7pm. If you do that, you're technically doing "intermittent fasting" to get more aggressive, just shorten that 8 hour window to an 6 hour window. The idea, is that the longer you fast the more benefit you can potentially gain from it.

I'd recommend you check out this book:

or the great resources at /r/intermittentfasting

u/ctfbbuck · 1 pointr/OzoneOfftopic
u/MNGopher23 · 1 pointr/intermittentfasting

I think this contains just about everything you need to know in regards to fasting.


u/beastmode10x · 1 pointr/intermittentfasting

Dr. Jason Fung on YouTube! He also has written a several books.

u/wolfy528 · 1 pointr/fasting

I started 5 months ago with intermittent fasting. I remember how hard the 1st day was just making it to lunch. Then I started doing 20/4 and then I added fasting all day on Monday. I could not get past the 24 hour mark without a snack at first. Jump now to May and I can do 48 hours easy. It is like so hard at first but the more you practice the easier it gets. So I will just keep practicing and upping my goals as needed. I think If I ever get to 5 days I would be satisfied and not push past this. No reason for me to ever past 5 days. After a two day fast I always have much more energy and I feel young and so much better than my 52 years.
I plan on ordering this book

u/ColeyColeyColey954 · 1 pointr/fasting

I found this book super helpful. It led me to his website which also has a ton of the science references on extended fasting.

u/alxbsk · 1 pointr/Fitness

healthy as it promotes autophagy. this seems to be accepted as the de facto guide to fasting these days: i try to do one 24-hr fast weekly.

u/nastynickdr · 1 pointr/askMRP

Lifting will give you some test boost, but will not make a miracle. Your test is pretty low for your age, maybe you should consider TRT. If you go the TRT route, get the BEST doctor you can get, if you screw with your hormones, depending on what you do, theres no going back. And research a lot before doing it. Read books, good articles. Clomid is a nice help for now.

Some things other than TRT to check:

u/thefatslayer_com · 0 pointsr/fasting

In this book the author claims that sugar-free beverages (sweeteners, trivia, ets) break the fast

The Complete Guide to Fasting: Heal Your Body Through Intermittent, Alternate-Day, and Extended Fasting

u/SillySillyGirl · -1 pointsr/asktransgender

There are many doctors who believe in the health benefits of long fasting. There is a subreddit /r/fasting that has a lot of peeps and if you google water fasting there is a ton of positive info. I've fasted 10 days before and it was a great experience and at some point I'd like to repeat it. It was at a time that looking back I did not have the spare fat to lose but the dysphoria at the time told me otherwise. But it did not hurt me or my progress and I felt better at the end. No problems with HRT or anything and it got rid of the last remaining "boy" fat on me.

Guide to Fasting is a good resource.

Jason Fung Blog

The Obesity code book by Jason Fung has a lot of good info.

Complete Guide to Fasting is also good.