The Truth About Fasting: What Really Happens to Your Body?

Check out these incredible health benefits of fasting, and learn why these effects of fasting occur.

For more details on this topic, check out the full article on the website:

More Videos on Dawn Phenomenon:

Growth Hormone and Fasting:

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Timestamps 
0:05 Fasting explained 
0:38 Effects of fasting after 12 hours 
1:21 Effects of fasting after 18 hours
2:37 Effects of fasting after 24 hours
6:23 Effects of fasting after 48 hours
6:54 Effects of fasting after 72 hours
7:24 How to get these incredible effects of fasting

In this video, we’re going to talk about what happens on the inside of your body when you’re fasting. 

There are a lot of beneficial effects of fasting on the body. Over a long period of time, the human body has developed and adapted to starvation. However, our bodies have not adapted to frequent eating. 

What happens when we fast?

Effects of fasting after 12 hours—There is a spike in growth hormone.

Growth hormone is involved with:
• Anti-aging 
• Fat burning 
• Healing joints
• Protein synthesis 

Effects of fasting after 18 hours—You develop autophagy.

Autophagy is involved with:
• Recycling old and damaged proteins as well as microbes
• Decreased amyloid plaquing 

Effects of fasting after 24 hours—You really start to deplete your glycogen reserve and run on ketones. 

Benefits of fasting after 24 hours:
• Decreased hunger
• Decreased cravings 
• Increased antioxidant reserve
• Increased oxygen 
• Better fuel efficiency 
• Decreased inflammation 
• Gut healing 
• Improved cardiovascular function 
• Improved cognitive function 

Effects of fasting after 48 hours:
• Stimulate stem cells
• Decreased risk of cancer/tumors 
• Make more mitochondria 

Effects of fasting after 72 hours—Do periodically 
• More stimulation of stem cells 
• Better immune function

How to get these incredible effects of fasting:

• Do intermittent fasting on a regular basis
• A good average pattern of intermittent fasting is doing 18 hours of fasting with a 6 hour eating window
• Do periodic prolonged fasting to achieve additional fasting benefits 
• Take minerals during fasting (water along with nutrients ) 
• Exercise in the mornings 
• You may have increased LDL (This may not be something to worry about)

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Dr. Eric Berg DC Bio:
Dr. Berg, age 56, is a chiropractor who specializes in Healthy Ketosis & Intermittent Fasting. He is the author of the best-selling book The Healthy Keto Plan, and is the Director of Dr. Berg’s Nutritionals. He no longer practices, but focuses on health education through social media. 
 
 
 
Disclaimer:
Dr. Eric Berg received his Doctor of Chiropractic degree from Palmer College of Chiropractic in 1988.  His use of “doctor” or “Dr.” in relation to himself solely refers to that degree.  Dr. Berg is a licensed chiropractor in Virginia, California, and Louisiana, but he no longer practices chiropractic in any state and does not see patients so he can focus on educating people as a full time activity, yet he maintains an active license. This video is for general informational purposes only.  It should not be used to self-diagnose and it is not a substitute for a medical exam, cure, treatment, diagnosis, and prescription or recommendation.  It does not create a doctor-patient relationship between Dr. Berg and you.  You should not make any change in your health regimen or diet before first consulting a physician and obtaining a medical exam, diagnosis, and recommendation.  Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition.

Thanks for watching! I hope this video helps you better understand what really happens during fasting.

[tommanserable]

You forgot to mention that at about 20 to 24 hours your eyes start to obsessively watch YouTube videos about fasting with another spike of this phenomenon at about 36 to 48 hours.

[Dutchk]

You forgot one of the main important benefits. It’s Free!

[laishighlyfavored]

Just a little over 6hrs left in my first 72hr fast! I can’t believe that I actually did this, all thanks to you Dr. Berg. ❤

[Theactualcurrentsea]

Been saying this for a long time. There was no way people ate the 3 meals a day. Those at the top know this but also know eating that much causes lethargy and health issues that they can profit from. I started eating once a day about 7 years ago and an amazing thing happened. My energy went up and so did my muscle. I might be weird, but it worked amazingly.

[jhardy]

When you realize how little food you actually need to survive you realize it's been pretty easy to fall for the marketing that corporate food industry has been producing.

[jahpards]

My deep respect to doctors giving information to people for free. It means they really do care. 🙌

[acdcmike]

Here’s my story. I was 310 lbs. at one point in June 2023, and not at all comfortable at this stage. My BMI was 49, class 3 obesity. I decided to go on Ozempic and I lost 40 lbs. in 2 months. I continued taking Ozempic but plateaued at 270 lbs and could never get lower, even with 2 mg. shots per week. As a matter of fact, I was gaining again and climbed to 290 lbs. I felt nauseated every day and felt that Ozempic was no longer helping me so I stopped taking it in early May of this year.

At this point, I felt I really had to do something or literally bust at the seams again. I did research on diets and came across this video. I decided to give prolonged fasting a try and managed to reach 117 hrs. without a single bit of food. I took Centrum 50+ vitamins every day with an added 1000 UI of Vitamin D3 along with 1 electrolyte drink with an added pinch of salt and in my water glasses for the day (2 liters). I go for a walk around the block every day and this seems to help with digestion, not to mention all the other benefits exercise gives.

I then moved to an 18-6 intermittent fasting period with little food for the first two days. From this point on I ate normal portions of healthy Keto diet food and have since upped my fasting period to 20-4 and now 22-2 without any serious urges to eat in between. I keep my carbs and sugar levels lower than 30 g each a day and I am in constant state of ketosis ranging between 8 and 16 mmol/L. I have ketosis test strips that I use on a daily basis to see where I stand. I haven’t felt any issues whatsoever being at this constant level of ketosis. Intermittent fasting has reduced my arthritic pain in my knees and hips and my pants are starting to fall off. :)

Since I started on May 10, 2024, at 6:00 PM, I’ve lost 20 lbs. (9.07 kg.), I’m down to 270 lbs. (122.5 kg.). I will continue doing this until I reach 200lbs (90.7 kg.). which seems to be my ideal weight. I’m 61 years of age and I'm 5’ “7” (170 CM) with a large bone structure and getting below 200 lbs. just wouldn’t sit well with me. Losing 90 lbs. (40.8 kg.) is my goal, no more.

Thank you Doc for this helpful video. I will report back in the future. 😊

Well, we are now June 10, one month in on my new endeavor. I am now on OMAD and I eat between 5:00 PM and 6:00 PM with 23 hours of fasting. My intake is about 1500-1800 calories a day on a Keto diet. Weighed myself this morning with 9 hrs. left to go before I eat and I'm in at 263.2 lbs. (119.36 kg.). That's 26.8 lbs. (12.16 kg.) in 31 days, not bad at all! I will update in another month. :)

[bobsponge]

After a 5 day fast, I noticed all of my arthritis pain went away for a few days afterward. It was great. Like a reset button for my joints.

[Kevin]

I learn more on Youtube than I ever did in High School

[richardjackson]

Only problem with fasting is I suddenly notice how much everyone eats around me.

[MackTrainingAcademy]

Love when Science catches up with the bible.

[TheAjc]

Just finished a 40 hr fast. Water only, carried on working, felt great. My internal body and mind feel refreshed and cleansed

[barejokestv]

Fasting, the greatest enemy of the Pharma companies...

A patient cured, is a customer lost.

[exposingliars]

I was gaining weight, doing too much cardio and fatigued. I stopped all exercise and went zero sugar and fasted and lost so much inflammation and weight, even without exercise. He is telling the truth.

[mccoyAB]

I was in and out the the hospital for 3 weeks being with my girlfriend who suffered a nasty motorbike wreck. During that time I had a terrible diet, poor sleep, anxiety. Once she finally made it back on her feet I started back into my routine of working out and also went straight into a 72 hour fast. At first I didn't believe people online saying they did a week or more but heading into my 72nd hour I truly felt like I could have done beyond. My health both mentally and physically improved dramatically and I will continue to do intermittent fasting from now on. Respect to all who do this.

[filippians]

I do a 36 hour fast twice a month. It really helps me reset my body, rest my mind and focus on God.

[enosanderson]

I am 69 years old and I have been on the 18 hour IF diet for over a year. I started the 72 hour fast about 5 years ago and continue to do that every 6 months. Many of my friends ask what is my secret. I have never felt better. My fasting was not to lose weight, I just wanted to be healthy.

[openmind]

Everyday fasting is easy, just do your breakfast at 12 & dinner at 6 .Now you have your 18 hour fasting everyday .without feeling the pain

[shaunmichaels]

I did my 3 day water fast and man I feel so much better after it. Can’t wait to keep doing more.

[remickn]

I am 49yo. Fasting every Wednesday for 20-24 hours (drinking only water) for more than 3 years now. Added Friday in the last 4 weeks, so 2 days a week now. I had never felt better in my entire life. I lost 7 kg (I am 170cm/63kg), feel very energetic, sharp minded, more disciplined and organized. Combined with daily meditations I am doing for a year now and tracking my sleep thru the app on my apple watch for 2 years, my life changed forever. People get shocked when I tell them my age, nobody gives me more that 35. I love my life and enjoy every minute of it! Good luck to everybody who decided to challenge themselves and start intermittent fasting! And Dr Berg, thank you for the great video!