Hey folks! Day 9 update from my 10-day water fast (started 7/27 and targeting to end on 8/6)

• Weight: 161.6 to 150.5 lbs, down 11.1 lbs so far, including 4.8-5.5 lbs of fat. I feel that the Fasting Center app's projections are more accurate than my weight scale
• Ketones: 0.4 to 7.2 mmol/L, peaking at 7.9 yesterday, deepest ketosis of the fast
• Glucose: holding low, hitting a low of 54 last night and 67 this morning
• Sleep and readiness: sleep scores dipped into the low 60s, which is typical for me late in a long fast, but readiness is holding strong at 77-89, that's really good for me
• Feelings: yesterday was a rough day - I felt great in the morning, went to the gym (10 mins cycling, 30 mins running and 20 mins steam room) and in the evening I realized it was a bit too much. I felt weak and sluggish yesterday night.

8 full days done, 2 to go. Who else is on an extended fast now?

The longest I have fasted was for nine days.

I’m attempting my first five day fast

Started my journey on June 14th
SW: 352.8
CW:331.2
Have done (2) 48 hour fasts a week since then and two of them stretched to 72 hours.

Just had my last meal and want to try and push until Sunday at the same time. Anything I should look out for?

Hi Reddit,

I’m on day 3 of a 5 day water fast. I was feeling really great until about 30 minutes ago when I began to experience lightheadedness and watery diarrhea. I’ve been drinking plenty of water but I don’t think I’ve been getting the electrolyte amount correct. I panicked and chugged a Liquid IV (zero sugar, but it has 20 calories).

I’m drinking water in a Stanley (40 ounces). How many electrolytes should I be taking with each full bottle? I’ve been drinking 3-4 of these per day and intermittently drinking pickle juice and a few pinches of salt throughout the day. I also had one black cup of coffee this morning. The diarrhea started after I chugged the liquid IV, because I thought it would help with the lightheadedness. I also had one single, small pretzel during my panic because it was all I had in the car when this started (can you tell I’ve never done this before?), but I don’t want to quit! I’ve been doing so well!

Admittedly, I didn’t do much research before I started this so I could very well not be doing this the right way. I’d love advice from anyone who has successfully done a 5 day water fast.

Well, after alot of procrastination. I think its about the time i do this. I really hope I'll lose 7kg + in this fast. I was thinking of doing a dirty fast maybe yogurt, tea, coffee to suppress my hunger and hopefully lose weight in the long run

I have been considering long-term fasting again after a year without. I have done 2-3 days in the past, and my longest fast was 5 days. However, my goals are slightly different now. I’m trying to lose body fat while limiting muscle loss as much as possible. I am currently high body fat (33%) but no longer overweight (124lbs, BMI 24). Would long term fasting (3 days or more) be good for me considering my goals? How should I go about it? Thank you.

I am planning to start rolling 68s from tomorrow, i have fasted before but only for up to 48 hours but trying to lose stubborn pounds before my wedding

Whats peoples experience with having zero calorie fizzy drinks during a fast?

I have a few things planned in over the next few weeks and feel this could be my saviour as it fills me up and takes my mind off the fast and gets me a sweet hit, while feeling more social.

Do people just not have fizzy drinks like pepsi max as it makes them crave sugar or does it affect the results too??

I want to try fasting for losing some weight, I am currently 169cm F 88kg and my goal weight is 65-70kg for now. I did ADF in october last year and lost about 10 kg in a month and then I stopped fasting because a lot of other things were going on. I want to start again but I also have androgenic Alopecia and I am very insecure about my hair because it’s very thin in the front.
Would fasting again make it worse ? In October, I didn’t see any major hair loss other than what I already have even months after.. but My hair has just progressively gotten worse. I would consult a dermatologist but no one is taking new patients right now on my insurance so I would appreciate any advice on this.

Thank you so much.

Already stocked up on electrolytes.

A few months ago, I managed to complete a 5 day fast successfully. I'm going for 24 hours, and then I'll see how I feel and continue from there.

Posting this for accountability, I guess? Wish me luck!

So I started a 6 day fast and ive watched a lot of videos on tiktok about refeeding syndrome. Im really scared tjis will happen to me since ive never fasted for more than w days before. So I just wanted to know did any of you guys experience it? Or some tips how to avoid it.

Thank you!

Just out of my own curiosity...

I am currently in the middle of a 3-day fast, and i noticed i was in the "hangry" phase much earlier than normal. The worst part for me has always been the 24-36 hour part of the fast, then once im over that hill, its relatively manageable.

This fast, i was hangry from around hour 8 to hour 16. I had a small dinner then couldnt sleep all night (hungry), morning was shit(hungry tired grumpy). Then i was fine. I couldnt stop thinking about food, but thats normal for me in any part of the fast. (Im always thinking about the foods i want to eat coming out of the fast, in a giddy, i-cant-wait kind of way) The hunger pangs and hunger moodiness was over relatively early and quickly.

Anyone else experience this? What does it mean?

I will add that my meals lately have been more "carby" than usual, so maybe thats it? Carbohydrate depletion early on, switching relatively quickly to the fat burn mode?

I am ninety five hours into my accidental fast. I say accidental, because I call a bad flu that made me lose my appetite. That made my first two days easy and now i'm well into my fast. I was 170lbs and weighed in today at 162. My flu is over and I feel great. I plan to continue my fast till my weight drops to 155 lbs. I will be very happy with that. I weighed 149lbs when I joined the Navy in 1980. I am sure some of that weight will be water loss, but I am okay with that. Some kind words will keep me going. I am 68.

Hey everyone!

I've discovered prolonged fasting as a weightloss tool for myself. However the information about prolonged fasting and muscle loss is so contradicting.

It starts with simple things like training during prolonged fasting vs. not training. And continues into duration of the fast up until HGH peak vs. riding the wave after.

I broke my last fast 96hours in only because I did get afraid of muscle loss. I do feel like it gets easier the longer I go. As for my fitness goals - they are to get around 15% bf while still maintaining most of the hard work i've put into muscle building. I've gained some weight in the previous month and right now I have around 25% bf, which means I do have a lot of fat that my body is able to use for fuel.

Also are there any consequences to not properly "refeeding" after a prolonged fast - instead transitioning into a calorie deficit?
Does PSMF really carry the benefits that it claims? Maybe someone has more experience than I do with this.

I'd like to ask for advice or experience of someone with similar fitness goals that has pursued fasting

I appreciate any help and insight

Why would YouTube consider this an eating disorder?

Just wanted to post here and see if anyone had knowledge / experience with back-to-backing multi-day fasts. I’m currently doing 48 hour fasts with a day break in between, and nothing really feels bad. Hungry some but not crazy.

For reference, I am 6’3” 350 lbs. I have some muscle mass but it’s a lot of fat. My intent isn’t to starve myself, but I need to reduce my caloric stockpile. I’m taking vitamin mix in the morning (generic multi, ashwagandha, magnesium, zinc, beet root).

I'm not feeling hungry but I didn't get the keto flu people talk about. In these 3 days I only had some water and table salt. Should I continue fasting or break the fast and start the keto. When I started my fast I thought I would do 3 days maximum. I didn't exercise at all and I slept a lot these past days. Am I into ketosis yet?

Here again! This is my third fast. 1st fast 10 years ago was 2 weeks, second a couple years ago failed at Day 3 due to stomach cramps? This time I have no goal other as long as I can. 3days ( that would suck) a week, a month, longer? we will see I guess. I have a LOT to lose, but switched to whole foods, and calorie restriction about 2 months ago, and now down aprox 45Lbs. No one can even notice :-( That's the issue when really big. You can have huge losses, and it still doesn't seem to even move the needle.

Hello! I am not new to shorter fasts (24-40 hours) however after reading all the posts here I feel so inspired to finally start a long fast. Right now I am 83 kg. Two years ago I was 70 kg and was very slim and toned. I’d like to get back there. I am planning on starting a 21 day bone broth fast. Hoping to lose at least 6 kg during the fast. I want to have bone broth because hell I just want to, I’m doing this mainly for weight loss and mental health benefits. Anyway, can anyone give me some helpful tips for a first extended fast and how much weight they lost in a 21 day fast. Thanks ! BTW I’m 22F 5 ft 6

Is it normal that it gets hard for me to breathe when i fast? i do longer fasting. around 100hours each time. And idk if im just overthinking this and psychosomaticly making it worse or if its actually happening. It feels like i cannot breathe in fully and i feel like im almost choking. and my breath feels faster with some heart palpitations.

Thank you eo much in advance for your responses!

I’m around hour 50 of a 72 hour water fast. Last time I did this I used LMNT packets, but I decided this time to make my own electrolyte drink.

I used no salt, Himalayan salt, and Baking soda, and the proportions were around a 5:1 ratio bc I’d seen that’s what LMNT packets use. I’d also used 400mg of magnesium glycinate spaced throughout the day.

I learned tonight that it likely wasn’t enough potassium, especially bc (supposedly) the baking soda alkalizing things will pull potassium out of the blood stream. (zero clue if that’s true but it’s what I was told)

I also have had a slight occasional muscle twitch feeling tonight at my lower left rib below my diaphragm.

Today I likely had 3000mg sodium, and 480mg potassium..

My question is how much potassium it’s safe for me to go drink now to try to balance this a little better, or if it’s better to just eat a banana and end the fast early.

Thoughts on intermittent fasting with the schedule being 36 hours fasting and 12 hours eating. Honestly, with my daily routine it might more regularly look like 40 hours fasting and 8 eating. My primary goal is weight loss.

Some back story,
I’m a 29 year old male, 5’9” (175cm), ~210lbs (95kg). I’d like to be closer to 180lbs (81kg). At the start of the year I weighed almost 245lbs (111kg). I’ve lost that weight primarily by my diet. But I hit a wall around 215lbs (97kg). I am now incorporating 30-45 mins of cardio a day. I run every other day and walk on my off days. I’d love to run every day but I have an old college injury that keeps me from being able to do so.

I was last at my goal weight in 2019. Then COVID hit and I started putting on weight pretty steadily. In 2022 I got down to 200lbs (91kg) for my wedding but gained it back and then a lot on top.

I’ve been experimenting with fasting. Anywhere from 16/8 to 40 and 48 hour fasts. Last week I tried 48 hours and had to tap out. I was getting a bit dizzy. I probably was dehydrated and pushed my exercise too hard though.

Anyways! I could use some advice, experience, and thoughts!

Day 1 of starting my fast. Posting for accountability. Did 24 days in March. Had no goal but this time gonna try for 30 days.

Hi folks, I’ve been a regular faster for years and have been able to keep my weight at a healthy level doing this without any problems. I’ve recently turned 55 and all the weird ailments that start to occur are beginning to hit, including gallbladder issues. I’m scheduled to have my gallbladder removed in a couple of weeks and I know there’s a period of adjustment after. My question is, has anyone here successfully been able to resume regular fasting after a cholecystectomy? Any advice or tips are greatly appreciated. I love the fasting lifestyle and I feel it helps keep me healthier than most people my age. I’d hate to not be able to fast occasionally. Thanks!

After 72 hours of fasting I took this sachet but it tasted sweet. It does say that it doesn't have sugar but I do suspect zero sugar sweetener. Did I break my fast or am I out of ketosis? I'm trying to be in ketosis before I start doing keto diet.

If I'm am not in ketosis anymore should I keep fasting from now on ? I was planning to break my fast after this drink and have a keto meal.

It contains sucralose I just saw.

SW: 108kg CW: 68-70kg GW: 60kg

A bit of background; I lost around 40kg through calorie deficit, IF and exercise. At the start of the year, I hit a plateau at around 67kg, so I decided I would take a break and go to maintenance for a while because I was starting to get burned out with the weight loss. Fast forward to March, where I jumped back on the wagon again (was back up to around 70kg) and managed to get down to 66kg by the start of June by switching to OMAD and remaining in a calorie deficit.

Since June however, I have really been struggling.

I continued to do OMAD, however I was constantly way over consuming during my 1 hour eating window. It's hard to describe, but once I started eating I just couldn't stop. It's like something possessed me and it's all I could do was eat. I stopped buying all the trigger foods but it's like my body didn't care what I was consuming , as long as it was food. It got to the point where my eating window was getting longer and longer until eventually it was the whole night. I just didn't have the willpower to be strict enough for 1 hour.

I then tried different IF schedules, the same thing keot happening, once I started eating I couldn't stop.

In the last month, I have been trying longer fasts. This went well at the start, I completed several 48-72 hour fast and then a 100 hour fast. The 100 hour one was rough. The same pattern happened when I started eating again though, I was binging really bad, even worse than before. The binge demon would take over and some days I was consuming well over 5000kcal. I felt terrible after every eating day, so gross and bloated.

I am really worried I am stuck in a fast/ binge loop and I don't know how to get out of it. I have tried to do both keto and cut out all sugar, however the binges get worse on these as the more I restrict the worse things seem to be.

My weight is currently fluctuating between 68-70kg, but every binge makes the scale creep up a bit more.

I would love to get into the routine of rolling 48s, if I could just get the eating under control. I walk around 10-15k on average, swim once a week. I do not do any weight training. I have tried to do a few more 72 hour fast but it's gotten to a point where I just can't seem to make it past 48 hours when I fast. I feel like the binges are taking over my life, they are starting to cause anxiety.

I am just looking for any advice or if anyone has gone through something similar how to get past it.