Hey, I have some questions about prolonged fasting. But first I want to give you some information about my fasting experience. I'm currently 25 years old and I started practicing fasting one year ago, because of bad mental health and a...
F/36, HW 88kgs, CW 75Kgs, GW 68Kgs, 1,68cm After some mad couple of months in my professional and personal life where I gained around 8 kgs, ate very poorly and did IF very inconsistently I finally managed to get back to...
I have yet to incorporate a prolonged fast and have been predominantly OMAD with some 20:4 and 18:6 days mixed in. I work out 5 and sometimes 6 days a week and am feeling great. I seem to hit...
I’m planning to do a prolonged fast +10 Days. My question is, because HRT injections contain a small amount of carrier oil, will this break a fast or have an affect on autophagy? Estradiol Valerate injection has a half-life around 3.5...
I understand the theories behind fasting and omad and keto and state of ketosis. I am curious if there's any study or any information on how much of a weight loss (not autophagy stuff) difference it is for lets say: 1....
This is my second prolonged fast, my first one has been 3,5d and I'm used to 16:8 IF. I'm currently at 50h/168h (total 7 days) and feeling good with a slight headache at the moment. I don't want to exercise right...
Besides weight loss, what are the benefits of prolonged fasting? I'm asking because I'm using the fasting tracker app and it explains what is happening in your body at different "levels" i.e. hours of fasting, but it only gets up...
\[27 years old, female, overweight\] Most likely I will get surgery (with total anesthesia) in a few weeks. I'm currently fasting 20:4 for weight loss since the beginning of December last year. Before that, I did intermittent fasting for...
How much muscle is lost when prolonged fasting? If one were to lose 1 kg by doing a prolonged fast, how much of this would be muscle? Just an estimate. Ignore water weight.
Hello, I am new to prolonged fasting and have only experimented with intermittent fasting over the last few months (mostly OMAD). I am extremely interested in the benefits of prolonged fasting and it all seems too good to be true....
I plan to do a regular 36 hour fast for weight loss and mental health - maybe once a month or every two months not sure yet - until I reach my GW. I have 11kgs to lose. Any recommendations...
Let say, if I wanna do 48h extended fast and after breaking that fast, I wanna start another extended 48-72h fast straight away. Is that dangerous? I read from somewhere that we have to take a day off after a...
Is one more beneficial than the other?
Hi there I have a question. So I have been fasting for a prolonged period. It was my second fast (the first was a while back, for 21days) and now again for 10days. The break has been 5days ago and...
So, aside from making one more keenly aware of calories coming in, there is another reason it works for me... When I am fucking hungry as hell, whole, healthy foods are amazing and what I crave... When eating mindlessly I gravitate to...
So I wanna go on a prolonged fast around 2 weeks and ofc ill be taking an adequate amount of electrolytes and some vitamins but I wanna know if I could actually do HIIT and strength training during the fasting...
It's demonstrated that doing exercise fasted is beneficial, however is not clear to me how to combine muscle building with prolonged fasting. Suppose I fast 72h and then do gym, the problem is that from one side is suggested not...
I’ve recently decided to get back into fasting, as I’ve always practiced intermittent fasting and some prolong fasting. But right now I’m day 2 into a 5 day water fast because I have a weigh in for the military. My...
Hey everyone. I’ve came across a video that said the basal metabolic rate decreases when fasting. The guy didn’t said how much or for how long. So, that made me think, is it a prolonged fasting period worst for weight...
Recently, I did 36hr prolonged fasting. I was so energetic and active during the fasting and I did not feel any weakness during the fasting. I ate a Homemade Veg burger to break my fast and I...
If you were chaining prolonged fasts, say 3 to 6 days, between a couple of days OMAD, where OMAD calories would at least meet total usage for the day or even a slight surplus, would this lead to a metabolic...
Probably a stupid question, but would there be any problem with just walking all day when on a prolonged fast for fat loss?
Today I started my 8th day dry fasting. I never really planned this journey. I thought I would have stopped by day 2! But here I am still going strong. I do not know how long I will keep going. According to...
We generally hear one should not drop body weight suddenly saying it is not healthy. But, on prolong fasting we loose too much weight too fast. Like is this a healthy weight loss? I will be starting with 72s rolling at...
I read many things about prolonged fasting (7-10 days) but was not able to be sure if it really increases chance of gallstones. Many reputable sources say yes because gallbladder's contractions are less, but I also saw a study in...
Hi fellow fasters! I noticed after prolonged fasting highly increased hunger that makes me overeat! Have you noticed this too? And how do you deal with it? I can't seem to control the hunger 😭 these are really strong hunger...
Has anyone been on TRT or started TRT while prolonged fasting? I do a 7 day fast every few days and just started TRT. My levels weren’t “below the threshold” but I was at 360 and I’m only 29. Has...
I’ve been having a rough past few months where I have noticed I’ve been binging snacks, living less actively, and having less energy. I have gained about 8 lbs in the past few months, and need to make a change....
I've been doing IF for about 6 months now (keto off and on before that for a few years) and had some success but nothing like this past month with prolong fasting. Prolong fasting has been incredible to say the...
Hi All, Needing some help in fine tuning electrolyte intake during prolonged fasting (yes Automoderator I know electrolytes are in the wiki, ugh I wish I could turn that thing off). I'm on day 5 of an undefined fast and...
im thinking about doing pf, i already did like 5 days and now i wanna do 10. i probably have endometriosis/pcos and i wanna heal my body from any inflammation in the body that causes it. has prolonged fasting help...
Guys, how do you do these prolonged fasts 5,10,15,20,30 days ? I mean how ? How you overcome weakness, dizziness and extreme headache ? What's the secret ?
I've been fasting for weight loss, and I was wondering, if I were to extend the fast for longer than 7 days, how do I go about refeeding when I do stop? I want to keep the weight I lost...
I’m very experienced with fasting, mostly 36 - 72 hour fasts. I used to be completely inactive when fasting (and in general too) but on a break from university so working at a grocery store for the time being. My...
33M 6'2" Some back story: Years ago I went through cancer treatment (CLL) and was a bit overweight at the time (200lbs) and went vegan and fasted a lot and got down to around 167. I always had small lipomas around my...
I’ve done a 40 day and night water fast and my hunger never returned so I’m curious how far my body will go burning fat reserves till It hits complications?
I'm thinking about doing a prolonged 6 day fast and assuming I'm taking all the required electrolytes, would I still be able to continue my intense workout routine or should I take it easy for the duration of the fast?
[Here](https://www.lipedema.org/patients) is a brief overview of lipedema. (Note: lipedema, not to be confused with lymphodema.) Because this type of fat is resistant to exercise and caloric deficit, as seen in the extreme [here](https://miro.medium.com/max/580/1*ASNgelAKGB1_pZUJF0rasA.jpeg), I'm curious if there are any fasting mechanisms...
I've just started on my 3 day fast and I'm already reaching past day 1 feeling pretty great, but what should I break my fast with when I'm done?
Hello everyone, I've been reading this Subreddit and posts with similar problems, but never quite the same as mine. To the point. Around day 3-4, my right thigh starts to "ache". It's always the same area, the same leg...
I’ve been doing IF for a month. I did it previously for a few months a couple years ago as well. I’ve done one 36 hour fast before. Yesterday I tried a 40 hour. I had coffee in the morning...
Extended fasters***, not tasters lol The longest fast I’ve done is 68 hours, just under 3 days. I am currently attempting my first 7 day fast and was wondering if anyone had any tips or tricks? The most difficult part of...
googling this gives you answers resembling "stop if you experience nausea, dizziness, diarrhea" etc. on this sub too i mostly find answers along the lines of "stop if you're not feeling well." but if i did that, i would never...
I'm wanting to attempt a 72+ hour fast but don't want to start it during recovery from resistance training. How long do you generally wait for recovery to complete before starting a long fast, or is there no limit to...
I mean, I am, kinda, but not like a full bowel movement. More... Liquid. I mean, there's nothing to really digest, so it makes sense, but wouldn't my body keep producing waste anyway? Maybe not like full on bowel movements...
Or is it not necessary? Planning on doing a 10 day dry fast. I’ve heard that you should prepare before a fast by eliminating any waste so that the body doesn’t use any of it. Any foods to eat leading...
I learned that refeeding syndrome is due to lack of electrolytes. But since I will be getting sodium, magnesium and potassium.. Will refeeding syndrome be an issue after a fast of like 21 data minimum? What about 15 days...
Just wondering if its possible to build muscle on a prolonged fast. I know about weight loss and calories in calories out really well. But building muscle is not as clear to me. Do you have to have the intake...
Hello all, So I've hit my 72 hour fasting mark. Only on water / fasting salts. Going for 6-9 days Anywho, last night I woke up with a massive urge to release my bowls. It was watery / diarrhea-like. I looked...
Does anyone have any studies around this topic? Muscle loss is the only thing that bothers me on a fast so please can anyone help? Thanks!
Never let yourself run out of food, thinking it will help you fast longer, then get a big shop before you refeed. I've just put away far too much food lol. Last minute chucked in some refined carbs. Now I'm...
Has anybody experience with extended fasting (6 to 10 days) and intense sessions of weight lifting during this or can provide some resources I could look up? Edit: By fasting I mean water fasting with electrolytes, tea and coffee but no...
I am on Day 9 of a Day 10 fast, and can't help but notice that I am faced with daily periods of hunger and naps, despite proper electrolyte and water intake. Wanted to know if this happens to others?
My goal is very simply to lose 100lbs. If my main goal is strictly weight loss do I need 48s/72s or more? Ive done the math and I’m pretty impressed with the results that a simple omad routine with a...
I've been wanting to use preworkouts cause I love the hypes up feeling and it helps me get my ass up and move tbh. Do all preworkouts break a fast? And why? All fasting functions or particular ones? The preworkout i...
I'm struggling to find any information regarding fasting and vaccinations. It's been roughly 8 days since I got my booster and I was hoping to do a fast as a method of discovering the cause of a chronic skin condition (Elimination...
Is there a point to weight training during my fast since I’ll be consuming absolutely zero protein? Or should I just stick with cardio?
I mean, let's assume you fast for 14 days, but also do: 10k steps a day Gym 4-6 times a week A lot of yoga What will happen from the fat store point?
Start weight: 231 End weight: 218 Loss: 13 lbs Probably the most difficult fast I've ever done. I don't plan to do something like this again to be honest but it did help me appreciate good foods over junk. I have to...
I'm currently at hour 38. Not feeling hunger, drinking plenty of fluids and also salt water to balance my electrolytes. I had done 3 day fast 3 months ago, and now I want to do it again but this time...
Hi everyone. This community has been super helpful for me to get back into fasting. I used to water fast two days a week to manage my weight and shifted to eating lower calories and a balanced diet over time. But...
Hello r/fastingscience \- what are your thoughts on fasting and the effectiveness of the vaccines against Covid? For couple years I fast 72 hours each month but since recieving the vaccine I stopped doing so because I was worried about...
I'm heavily overweight and I want to lose a lot of fat. My goal is to ONLY eat on the weekends for several weeks, or even months. Is it too much? What would you guys suggest? ***(I'm not new to...
F23, 400 lbs, I don't have a set day to stop my water fast but I'm thinking around 40 days, I'm 1 week in and have only been drinking water. When should I start drinking the juice? this Is also...
So currently I‘m on day 20 of a 24 day water fast. As expected I haven’t been to the toilet for a while now. Since I went slightly overboard with salt at around day 10 I got some awful diarrhea...
Hi, I am currently planning on embarking on what I hope to be a 20+ day water fast for weight loss and overall a betterment of my mind. I am a 19 year old male with a high libido and a...
When you exceed a certain number of hours of fasting, around 20 hours, your body starts producing something called Reverse T3, which is used to reduce metabolism. To understand what reverse T3 is, we need to know what metabolism is...
Hey everyone! Had some clarifying questions about dry fasting and overall weightloss when it comes to prolonged fasting. It's always reiterated and read that dry fasting is 2lbs-6lbs of weight loss per day ect. If I wanted to lose 30lbs...
Ive been fasting on and off for 3 years. I have a lot of experience doing omad and 2-7 day fasts. Now theoretically you don't lose muscle on a prolonged fast, but I've also heard that if you're under 10% bodyfat,...
Should I do daily 18/6 or twice a week 24hrs or some prolong fast? I have eczema.
[removed]
I think according to Valter Longo that prolonged fasting wipes out your immune cells that then repopulate with new, fresh ones upon refeeding. I have also heard that prolonged fasting can help with autoimmune diseases, where your immune cells attack...
I've noticed that anytime I fast and on a ketogenic diet, a hard stool accompanied with blood comes out with lesser bowel movements. When I went back to an unhealthy diet (sugar and high carbs), I had more frequent bowel...
Can I take mct oil during a prolonged fast? Would my weight still go down or would I need to not have any calories at all during prolonged fast? Would be only around 300 calories a day
Stats to put things into a perspective: SW:123 - about a year ago. CW: 94, 6 - I weighted in this morning. GW: 86 - for now, i want to get out of obesity range, then...
Do they yield the same results? Would the 7 day fasts be more tolerable and safer? This is what Dr. Jason Fung said on the topic: “Longer fasts have more power, but more risk. To me, there is no reason to fast...
Hi friends! I have a question for those who follow rolling 48s or 72s instead of doing prolonged fasts because of keto rash. I was so excited to complete my first three-day water fast a couple weeks ago. I then...
Hi fasters!! I am considering starting a prolonged fast on January 1 (and I assume a lot of other people are in the same boat). The longest I’ve been able to do was 5 1/2 days about a year and...
Hello, firstly let me begin with, “I am not seeking medical advice, my conditions are managed by medication and frequent blood panels to monitor function”. However, my chronic conditions do affect both my ability to lose weight and how I...
30 or 40 day water fast - Starting Today ( CW 285 / GW For fast 245 Ultimate Goal weight 185-195lbs) Height 6'2 Male ​ Will be starting my Journey of self healing. I was fairly fit and healthy in high...
I really am interested in the benefits of prolonged fasting but really struggle with migraines whenever I try to fast, even if I’m well hydrated and take electrolytes. Almost every single time I go even just a few hours without...
Feel good, about 3 days into a 5 day fast (or longer depending on how I feel) and it’s the longest I’ve ever tasted but I feel good. My weight is going down but I’m wondering how many days in...
My goal is not something I can achieve with diet or exercise I just want to eliminate food and do it I feel I have to do it if I want to face my depression So how do I say no to my...
I have a history of doing prolonged fasts (24-72+ hrs) from time to time over the last year and half, but I want to be consistent and stick to a goal and schedule to follow. this week i’d like to...
I've been diagnosed with Gilbert's Syndrome as a teenager and in recent years became interested in water fasting for it's proclaimed health benefits. Typically I do 3-7 days of drinking only water and the occasional herbal tea (mainly green tea)...
​ * Have a specific intermittent fasting goal before starting. * Weekly or monthly track your progress toward your goals. * Start small with an intermittent fasting protocol you can keep and increase your fasting window gradually. * The health benefits of intermittent...
So I fasted for 15 days and it was great till day 10. At day 10 my weight plateaued and for the next 5 days it stayed the same. Ik fasting isn't just for weight loss but I'm confused af....
I’ve been doing IF during the week and fasting over the weekends. I’m concerned about my protein intake when I am eating. On IF days, I’m getting 50-75g. I’m 6’2” 250lbs. I’d guess 25-30% body fat. I’m not very hungry. So...
I’ve been doing Keto + OMAD/20:4 fasting, eating after I get home from work or the gym. I typically work out 3 times a week doing a mix of CrossFit and powerlifting. I’ve been doing this for about a month...
I was originally planning on doing 3-4 days, opted for 72 but stopped half an hour ago. I noticed that my urine got darker and heard it was signaling the start of dehydration in the body, is that true? Anyways that...
I made a question yesterday about electrolytes and their potential effect on gallstones, but then realized that was not the issue I wanted to address. My question, briefly, is if water fasting with electrolytes for reasonable lengths (7-8 days) implies...
Hello! I'm a plant based eater, and suffering what are some good refeeding options for a prolonged fast.
I’m 200 lbs currently (5’9 male), 4 days into a fast. Feeling great. Anyways my main question is how much belly fat, just fat off my midsection in general can I expect to lose the longer I go into this...
Hi everyone. 25 m here. 5 ft 9 120KG/265lbs (aka very fat) I have done some prolonged fasting in the past (72 hours) and I did them back to back. I lost nearly all of my excess weight and...
I recently did two Comprehensive Metabolic Panels back-to-back within 4 days. The first test was day 1 of fast. 2nd Test was the day after breaking a 3 day fast the previous night. 1st test, kidney function was normal. The...
I'm trying to combine as many healthy routines to maximize my gains. Wondering if I can keep the benefits going I get from prolonged fasting if I only eat low carb foods once I eat? Are the benefits the same from...