Go to DrinkLMNT.com/WhatIveLearned to get a free sampler pack with any purchase! How many of you guys have been fasting? I didn't include too much of my personal experience this time around, but during my 5 day fast I either had lower libido or I was too exhausted from walking constantly to think about sex, but after refeeding my libido was definitely higher than normal

Great video 🙏 Can you do a video on micro plastics effect on testosterone and the endocrine system?

Okay… so starve myself for like 5 days, train and then load up on eggs. Hell yeah, finna get yolked now!

Definitely feel amazing after fasting and then breaking it with a protein focused meal, as well as strength training 💪🔥 At age 36 I'm at my fittest ever 😊

Ramadan is here, glad this is getting recommended.

Another great video as usual! Just wanted to add that whoever created the animations and visual depictions of various components (iconography: circles, squares, triangles) totally nailed it! Great job, and goes a long way in adding "stickiness" to information.

Your intermittent and prolonged fasting videos from 6 years ago changed my life. Rad to see you’re still at it here. Well done.

I started doing intermittent fasting (IF) two years ago, weighted 212 lbs. In six months acheived my goal of 160 lbs. My testosterone (T) levels before IF were always bothering me, usually between 230-280 ng/dl. That is borderline low T for men my age (38). After two years of doing IF daily, plus 3 day fasts every 3 months, I'm now at 637 ng/dl, well into the normal range of T levels, also boasting many of the health benefits it also provides to my hormones and body in general. This works!❤

Awesome video, great editing! This kind of information and knowledge is whats making a difference in people's lives.

I remember a Canadian doctor assisting an aboriginal community in BC suffering from obesity having them prescribed a low-carb diet over a period of time to control their insulin levels. Turns out he was able to restore proper hormone and blood levels with a significant weight loss, and patients with mild diabetes were cured improving their lifestyle.

Man, you are a genius editor! The personal video snippets, the explanatory animations, the series/film clip... you have especially nailed it with the West World intro clip. 😉

Incredible editing! Thank you very much for sharing this with us.

This feels like such a cheat code, thanks for providing us with this informative video man.

Very well presented and put together... I'm loving your videos and glad they're backed by evidence and not anecdote or opinions.

Dude, you're seriously leveled up your animations, and I love it!

"Let food be thy medicine" Not only WHAT you eat but How Much, and WHEN. Very important factors. There is something euphoric about fasting.

Started IF since 2020 pandemix thanks to Dr. Ekberg, DeLauer and your videos. Also break my fasts with rib-eye. 😃

Great timing on this video as i've been intermitently fasting for 6 days and don't pretend to stop EVER.

Great video. Production value is superb. Engaging the entire way through. Well done

Thank you for the content sir, from a viewer in the Philippines 🇵🇭

I totally enjoyed this info into fasting. And has confirmed some of my thoughts about fasting

Man. You take so many of the questions I have, and actually test and research them well. Thanks for doing that.

Your work is much appreciated - followed you for a while and your videos are always enlightening

Your videos are wonderful and very insightful. Thank you for all of your efforts!

I love your videos because they help people put their health back into their own hands. there's so much to learn, but it's very possible to become more and more aware of how different things impact your body, and to make small changes over time to get you closer to your specific goals. I'm a firm believer that you don't need to be a doctor, nor should you rely solely on doctors, to understand and improve your health.

Awesome content, you deserve your subscriber count! Congrats!

always on point! 👏🏻

I just started fasting about 3 months ago and lost 40 pounds already. I went from 210 to 175 and felt 10x better. I was obese even though I didn't look obese. I felt tired and terrible all the time but now I'm moving constantly with way more energy

I always noted that fasting was the biggest factor in allowing me to bulk up, not force-feeding myself, but depriving myself and then watching my appetite become insatiable in the refeeding stage. Best way to put on weight if skinny is to counterintuitively start by fasting.

Fasting 16/8 seven days a week is what works for me, a life-changer in fact. Will move to 20/4 when I feel ready. My focus is on the sustainable long run, no extreme changes overnight.

Man, you really answered my all life question, thanks...

Always looking forward to your videos, highly informative… Thank you so much❤️

Thank you for making a video about refeeding syndrome and how to properly break a fast. Animations are slick as always!

Yeah fasting works really well, I do intermittent fasting 1 or 2 times a week. Even when I break my fast, the portion of my meal is the same as if I wasn't fasting. Has helped me put on a lot of lean mass and am shredded. I have also been doing the intermittent fasting now for over a year.

This is, bar none, the BEST channel in KZfaq. Pure gold.

Man, I love your videos! I wanted to make a quick comment on LMNT. A few months ago I increased my workout program to include several longer workouts and occasional twice a day workouts. I started having horrible cramps within a week of increasing the workout time. I was working out in a warm garage and sweating profusely. My wife suggested some type of salts and I ended up getting LMNT. It put an immediate stop to the cramps! I quit using it and the cramps returned within 5-6 days so now my standard pre workout is an LMNT and 5g creatine. I’ve read things about creatine absorbing better with salt, so why not? I’m now on a 138 day cruise and typically hit the gym 10-12 times a week. I brought enough LMNT to take one a day for the trip. No cramps so far! Legit stuff.

Unrelated commentary: Hey man, thank you for all of the content you've produced over the years. I really look up to your example on navigating through these topics. Certainly you're not the only person I look up to as there are many hardworking, dedicated, highly skilled, and extremely talented individuals pushing the progression of scientific inquiry, validation, and dissemination forward. My gratitude towards you is owed in particular to how you have approached controversial topics in such a way that helped me "put out the fires" of controversy to an extent, which was critically helpful in my efforts to retain hope in finding answers to my questions on these topics. I have actually decided for myself to try to become a "fellow laborer" in this field of scientific research and sharing it with others. I'm considering making content to help add to the discussions in such a manner to emulate what you have done successfully, and maybe try to avoid mistakes you've made and shared comment on. All together, thank you for what you do and thank you for reading this awkwardly phrased commentary. -James B.

Great work man 👏👏👏

I’m on 2nd day. Feel great. + working out and my mind feels sharp

Really nice video probably the best and most informative lately thank you ♥️♥️. I just have a question. You're doing OMAD and you're fasting for multiple years now. I expected higher T level's from you. So my question is; how long does this raise last and how often should we fast to get the maximum health benefits with T levels the highest priority?

A must watch due to its informative contents.

Excellent work as always.

I really appreciate your videos. I do intermittent fasting daily and once or twice a month I will do a 2-3 day fast (generally around 66 hours by skipping eating 2 days and stick to my normal afternoon/evening eating time on the refeed day). I also eat a very low carbohydrate, mostly carnivore diet (beef, wild game, pork, eggs, tuna/sardines/herring, and cheese are my mainstays). 57 years old, 6'0" tall, 180#.

Absolutely, Amazing Insight.

Awesome info thanks... I broke my fasting with bone broth 1 cup every hour 3 times, then a small portion of green salad and chicken and at the ends fatty meat. I feels great every time...I do this one a month and works just right every time.

Superb content! Thanks for sharing your research.

I've practiced prolonged fasting for over 3 years now and I've kept making tremendous gains during this time. My testosterone was 894 ng/dl when I tested it almost 2 years ago and my muscle mass and habits have only gotten better since then so I suspect it's higher now. It's also made cutting very easy and reversed any sort of food addiction I ever had. I literally never crave junk food as whole foods taste amazing to me now and I can go very long without every feeling starved even when quite lean. What I've suspected and seems to be true anecdotally is that it boosts hormones and ability to put on muscle mass in the long term.

Hi Joseph, great video as always. I’m a bit confused by your description of refeeding syndrome. I agree that there is a massive electrolyte flux into the cells, “diluting” the blood, but this would not increase blood volume (10:18) but rather decrease it. Furthermore, my understanding is that the electrolyte imbalance (specifically hypophosphatemia), coupled with insulin’s downstream effects, rapidly depletes energy stores, causing myocardial ischemia, rhabdomyolysis, and respiratory failure, leading to death. I think the myocardial ischemia can cause “heart failure,” if the person survives the acute phase, and the ischemia can decrease cardiac function and lead to heart failure in the more chronic setting. However, I think usually in the acute setting, the electrolyte imbalance causes a fatal arrhythmia, which is the more common cause of death from refeeding syndrome. Very minor correction, but otherwise great video!

Loved this video, very informative

Agree with the positive findings. I experience them every time I fast. My white blood cell count increased after a 4 day water fast, from being so very low to being in the normal range.

Hmm that is why I do feel super great after Fasting in Ramadan.. interesting, thank you

Just finished a 4 day fast. Thanks for the tips!

Thanks for the information I love the channel Blessed Be.

I have recently statrted intermittent fasting. A 3 day series of 18:6. It has made a huge impact on "resetting" my gut/body. I am going to continue this every 4-6 weeks and see how things go!😀

Your body does not need or want testosterone when it's starving because it's a GROWTH hormone but when you start eating again it needs the testosterone to start growing again.

The REAL question is: how long does the testosterone stay elevated post fasting feeding????

looking forward to Ramadan in a few days. the spiritual and physical energy achieved in this period is unlike any other experience out there. I have eaten once a day maybe a + snack since last Ramadan. stuck at a solid 145. working out is next step. and yes better ways of fasting, but keep it mind this is an ordinance for millions.

My brother in law did a 40 day water fast he lost weight but was perfectly fine and healthier after. The polyps they found on his colon were gone!

Nowadays, we are bombarded with a lot of information on how to biohack our bodily systems and functions. But I think that what this VERY informative video shows me is that it can be a very delicate process as well, and adhering to certain rules is key. Knowing what the body can do as a result can be very beneficial or tragic. I'm very thankful for the information provided, hoping it keeps all of us safe in our future health journeys....👍👍🙏

I did a 33 day water fast (with electrolytes) a few years back. It was actually really easy state the third day. I was very careful refeeding. I had a few spoonfuls of bone broth hours before eating anything.

hello i am tanner wilkinson i found your video very informative and i thankyou so much for doing the rersearch so i dont have to i am planing on going to fighting sports so i need to become as strong as possible u have helped me more than you know i will save this video thankyou so much

5 minutes in and this video is going hard af!

This reminds me of the “hard times -> strong men -> easy times -> weak men repeat.” Fasting creates strong men, eating constantly makes weak men quite literally. It makes absolute sense, because animals aren’t mean to live easy lives, they are meant to take on hell and come back stronger. Same with damaging your muscles to build them back. We are absolutely astounding things, and we are meant to take on absolutely astounding biological stress, not stress in an office cubical.

When you said exercise increases inflammation and cortisol and lowers after rest and recovery, it made me think "no pain no gain"

As Muslims , we fast from sunrise to sunset everyday for a month, it's called Ramadan, there's lots of benefits doing that but this year I noticed some big changes : -my face became healthy and (shiny) , I used to have acne but now it's clear. -I developed facial hair, which made me look more masculine. -my mental health improved, I became less moody ... It's been one week since Ramadan started,I can't wait to see more results, I hope you learn more about this Holy month .

Your work is impressive. Can u make a video on endocrine disruptors and how it affects our metabolic health

I tried 21 days using water and multivitamins only; I'm used to 7 day fasts every 3 months, yet I was curious to see what would happen. I could have continued but I didn't see any purpose. Given the state of the world today, it might be to everyone's advantage to learn how to suppress hunger.

The one thing I want to know that didn't seem to be mentioned in the video, unless I'm mistaken, was, how long do the heightened test levels last? Does it drop back down after a few days rapidly? Or gradually return to the pre-fast levels? Could there hypothetically be a way to do a fast cycle go increase your over all testosterone levels, or would the benefits be negligible, specifically from a training standpoint.

I’ve been intermittent fasting (mostly due to a side effect of medication) and this really spoke to me.

Perfect video, ramadan coming up

Hi Joseph - love your content mate! Curious regarding this - I've noticed in your longer form fast videos (7 days & 5 days) you tend to break your fast with hard to digest things like steak etc. Generally speaking I try and break a long form fast (4 days and above) with things like broth and a small handful of cooked vegetables and slowly reintroduce harder digesting foods like red meat & dairy on my 3rd or 4th meal post fast, otherwise my stomach goes all wonky & becomes an unpleasant trip to the loo haha Do you find it is the same with you or can your body tolerate harder to digest foods post a 5 day fast with minimal issues? Great video again mate!

As a muslim, we have ramdan when we fast 30days, each day from sunrise to sunset, but our prophet (PBUH) adviced us to break the fast with "dates" wich is this fruit full of fiber sugar and vitamines and also a sip of water then you have to pray for 30 min or more, wich helps digesting those nutrients.

Thanks for this info 🎥

Just finished a 30 day water fast. Interesting timing

When you mention fasting, always explain whether you're talking about dry or water fasting. Very important distinction. Thank you for the video, very informative!

Currently on a long fast, started 11/26 weighing at 354 lbs to now 12/18 (22 days) weighing at 314 lbs. Total loss so far is 40 lbs, and I feel great. Just water, black coffee, tea, and Himalayan pink salt. Not sure how long to keep going, hoping to drop below 300 by New Years. As far as breaking the fast I have a stock of bone broth ready. And I intend to follow that a day or two later with protein rich yet light foods such as a hard or soft boiled egg, etc. Had labs done last Friday on day 19 and my T levels were just under 800. Mind you I had low T prior to that which motivated me into this fasting journey. Thanks for the ear.

Better fast Ramadan and then the habit of fasting Monday and Thursdays to see results

Hi!! Long time viewer of your channel and love your videos. I'm curious about height growth in adults but couldn't find anything substantial online. Could you do a video on that maybe? Would be awesome...😁😁

I think it's high time you do a video on Iodine. 🙂 There are some interesting differences between the east and west, in terms of iodine intake, and diseases following this, or rather the lack of.

Interesting and informative 👍

Thanks just ordered some LMNT 🤓

I've always found eggs to be a very safe way to break a fast. After long fasts I usually use a bone broth, but always include boiled eggs when I break a fast. I work out pretty hard while fasting and on a ten or eleven day fast I know I lose some muscle, but it comes back so fast on a high protein diet I really don't worry about it. Mostly I keep my fasts between three and five days to avoid the lose of muscle and add more muscle when I break the fast.

I would love to learn what the minimum effective dose for these effects is, just finished a 5 day fast in part because of these but if I wanted to do a less extreme fast more often how many days would be the fewest to see a significant effect. For example would having the weekend as exercise rest days as well as fasting days lead to testosterone spikes in the week that would amplify the effectiveness of hypertrophy workouts? Would the hgh boost boost recovery on those days so recovery is greater? And so on. Would appreciate any knowledge shared

This needs to be shown in schools!

Great video. I enjoyed your points on how a fast can be beneficial. Usually when I fast I will take some supplements. That seems to help me when I go back to eating that steak. Thank you.

Joseph, as allways great video. Cool findings about fasting impat on T. But what about free T ? Because during a fast or carb restrinction diet SHBG allways increases significantly and so goes down free T, although total T stays at the normal or even higher range.

Testosterone levels were indistinguishable the week after refeeding, based on the study cited at 3:44. This wasnt mentioned in the video, but looks like some people were curious. (Source: Endocrine markers of semistarvation in healthy lean men in a multistressor environment)

From personal experience, I can say fasting is amazing for heightened protein synthesis. Years back I did multiple prolonged fasting, starting out doing IF, then worked up to a 2 week(started out 2 days, 3, 5, 7, 9, then 14). Afterwards went to the gym for about 4 months, and got absolutely yolked. My life was also hectic then, working 40+ hours, taking 15 credit hours worth of college courses, and worked out 4 days a week for about an hour each day, and getting on average 6 hours of sleep a night.

I started intermintent fasting 6 months ago. First 12/12, that as too easy, then 16/8, which was better, but hard to get enough protein in 8 hours. My first meal after the short fast is a smoothie that includes a large serving of FF Greek yogurt. Then a half hour later, it's eggs and meat, sometimes avocado. I've lost quite a bit if weight doing this and some work outs. I'm 60.

I remember learning as a kid that if you were starving in the desert for a week and made it out, the worst thing you can do is eat and drink like you did before because it can kill you. I was told that but I never knew why until now lol. I do intermittent fasting but I dig trenches in the desert for a living so going whole days without eating would have me passing out. Probably try longer fasting when I'm older.

Fasting has been single handedly the most helpful diet behaviour that i've adopted to hit my daily/weekly calorie goal. You really get accustomed to the feeling of hunger, almost immune to it or learn to feel little of it. On the other hand, the more frequently I eat the more hungry I am all the time. It's like spoiling your body makes it impatient, disciplining it through fasting and controlled eating intervals makes it patient.

Very well presented video. New sub ✨👌

Very explanatory, and I would like to know the core structure of a fast, or the way you do it please. Thanks

Subjective experience 100% agrees. I’ve always felt like the benefits of fasting hit around 48-72 hours after ending the fast. Say you fast for a day on a sunday. Make a note of how you’re feeling the following wednesday. Want to feel at your best for a party in the weekend? Fast for a day or 48h if you can handle it, on monday-tuesday. Peace!

I wish there was something that could be done about the spike in uric acid. For whatever reason, I am prone to gout and sometimes when I fast, I get gout. I usually fast about 4 days but I’ve done 3 and 5 day fasts as well but the fear of getting gout again makes me hesitant to do another fast. Anyways, great video as usual!

Bless your heart

Last summer, I did *16 hour, *18 hour, and then a *24 hour fast about every two weeks. I gave myself 2 days off on the weekends. The week after I did 5 days of 16 hour fasts. Then back to 16, 18, 24. I tried 24 hour a day off and a another 24 hours in the same week. I did the best on the 16, 18, 24 formula. It made me feel amazing. Loose joints, very little body pain, and mental clarity. I weight train in the mornings and play disc golf while fasting as well. I believe exercising while fasting helps boost the benefits.

Great video! Do you have data on how much or if at all intermittent fasting (lets say for 18h) increases your testosteron as well? Or do the effects only happen if one fasts for some 48h+ ?

Question: When you gonna go enhanced and share your experience and data with us?

I'd be interested to see more of the info regarding shorter term fasts. I often do a 20 hr. fast several times in a week, sort of OMAD with a few days of regular feeding. It's worked quite well for me, I think primarily because it has been easily sustainable as a lifestyle.