Stars like Beyonce and Hugh Jackman have spoken out about following intermittent fasting plans to get in shape. How does intermittent fasting work? Here's what actually happens to your body and brain when you fast. Following is a transcript of the video.
How long has it been since you last ate? People who fast intermittently often eat within an 8-hour block, leaving 16 hours of fasting in between. During that 16-hour stretch, their bodies undergo an important change that sets them apart from non-fasters.
Here's how it works.
When you eat, you store some of that energy in the liver as glycogen. But after 10-12 hours of not eating, your glycogen reserves will be extremely low. As a result, you may feel more irritable than normal, a term scientists call "hangry."
The upside is — with little glycogen left — fat cells in your body release fats into your bloodstream. The fat cells head straight to your liver, where they're converted to energy for your body and brain. So, you are literally burning fat to survive.
Blood samples show that people who had fasted for 12-24 hours experienced a 60% increase in energy from fat, with the biggest change occurring after 18 hours. This is the benefit to intermittent fasting because it puts you in a state called ketosis. And it's why researchers think intermittent fasting could be the key to a longer, healthier life.
The process of burning fat releases chemicals called ketones. In the brain, ketones trigger the release of an important molecule called BDNF. BDNF helps build and strengthen neurons and neural connections in areas of the brain responsible for learning and memory. Which could explain why a boost in ketone production has been shown to improve memory in people with early signs of dementia in as soon as 6 weeks. Increasing ketones in the body is also a common treatment for patients with severe epilepsy.
You don't necessarily have to fast to boost your ketone levels. Introducing more fatty foods into your diet and cutting back on carbs can have a similar effect. A group of people who tried this method for 3 months not only lost weight and body fat, but also saw a decrease in blood pressure and a hormone (IGF-1) that is related to aging and disease.
But scientists have discovered that fasting increases ketone levels more. Ketogenic diets can increase ketones 4-fold whereas fasting has been shown to increase ketones by up to 20-fold. As a result, fasting — compared to a ketogenic diet — may have a stronger, more beneficial effect on overall health.
Yet many Americans who eat three meals a day with snacks in between never reach ketosis, and therefore aren't producing enough ketones to promote good health.
Fasting and ketosis have been a key to our survival from the beginning. They helped our ancient ancestors survive through bouts of starvation.
And today, they're becoming recognized as a way to help keep future generations mentally and physically disease-free.
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Is this just the latest fad or does it actually work?
ReplyDeleteEnjoy life, it's later than you think ;) Have wholesome, healthy food, avoid fast food and industrial crap... and you'll be just fine.
ReplyDeleteJenny Craig says eat 6 times a day 😃😃
ReplyDeletereally?? its been biblical. nothing new under the sun
ReplyDeleteI didnt know this before but now i know why in islam we fast for a whole mounth (Ramadhan) every year
ReplyDeleteso much for the 5 meals a day propaganda pushed for the last years by not only some scientists but also governments
ReplyDeleteWhen does your body burn muscle?
ReplyDeleteIts crazy bec i lost 12 lbs in two weeks doing this.
ReplyDeletelaughs in muslim
ReplyDeleteOMAD
ReplyDeleteI’m actually surprised people have a name for this. I’ve been eating 1 meal a day since I came into college. Occasionally I’ll indulge in two but one meal for an hour max saves so much time for other things. It’s obviously not for everyone and I’m used to it, but it’s worth a try if you can get over the initial humps
ReplyDeleteI fasted for 64 days. No food, no water. Used to make sure I didn’t accidentally swallow saliva either.
ReplyDeleteGreat info keep up the good work
ReplyDeleteThank you
Allllright everybody leave a like if you watch Kinobody
ReplyDeleteLaughs in muslim
ReplyDeleteTry to fast Ramadan
ReplyDeleteDoes someone here do OMAD on afternoon? Say, 2 pm?
ReplyDeleteWow.. Thanks
ReplyDeleteRamadan is coming bro i am ready
ReplyDeleteI do this because I'm 2 lazy to eat in the morning and just want coffee then I go to work and don't make a lunch get home like at 5 and finally eat
ReplyDeletehow long You can do Intermitten fasting ?
ReplyDeleteWhat about if you have muscle mass and go on intermediate fasting does your body still takes fat for energy or does it use muscle??? That's my only concern i dont want to lose my hard earned muscles
ReplyDeleteBest part about intermittent fasting is that if you do it right you can pretty much eat whatever you want and still lose weight. I do 20 hour fast and 4 hour eating window, In the 4 hours I eat about 2600 calories and still drop fat like crazy.
ReplyDeleteI do this without even know im doing it i eat once at 11 am then at 7 pm but mostly skip it
ReplyDeleteI fast 23 hours a day then wait an hour before eating.
ReplyDeleteRamadan anyone?
ReplyDeleteWow.. we muslim were fasting during ramadan from 1400+ years ago.. and now its admited by science that fasting is benefit to the body.. its from creator to creations..
ReplyDeletethx for the video, now im proud to be skinny and always hungry
ReplyDeletewaiting for ramadhan to fast. ....
ReplyDeleteSo how do you it. I want to start but how. How many hours should I not eat and Also can I drink water as much water?
ReplyDeleteI do intermittent fasting without knowing I'm doing it
ReplyDeleteMore than 1400 years ago, Islam made it compulsory for all Muslims to observe intermittent fasting for 1 month during Ramadhan.
ReplyDeleteThis compulsion has always been criticised by all people, even until a few years ago. But turns out, it is actually good for the body.
Not trying to start a conversation or "comment war" with anyone. Just wanted to let people know who weren't already aware.
So i have to eat at 8 in the morning and at 4 in the evening.... And that's it for the day...
ReplyDeleteIs that it?
Good bye breakfast and snacks.
ReplyDeleteMuslims were told to fast, eat dates, honey on a regular basis over 1400 years ago!
ReplyDeletePlease translete this vedio for arabe language and other vedio for arabe.
ReplyDeleteCan I fast if I have an extremely low body fat percentage (4-9%)?
ReplyDeleteFasting turns you into a mutant with healing factor and claws on hands? Sign me up!
ReplyDeleteKetones Gokakyu no Jutsu...whoops wrong way of burning fat.
ReplyDeleteWow I've been doing this without realising. Feels pretty natural to me.
ReplyDelete