What Would You Do If You Had Stage 4 Cancer? My Honest Answer

What would you do if you were diagnosed with stage 4 cancer? Cancer tumors are often hypoxic, necrotic, and metabolically stressed. They rely heavily on constant fuel to survive. So this raises a difficult question: What happens when you stop feeding it?

This video discusses the idea of prolonged fasting as a theoretical way to starve cancer cells — not as medical advice, but as a thought experiment about how cancer behaves biologically and how aggressive treatments affect the body.

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Dr. Eric Berg DC Bio:
Dr. Berg, age 60, 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 Nutritionals. He no longer practices but focuses on health education through social media.

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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, 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.

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78 Comments

  1. @happpyboy on January 27, 2026 at 11:02 am

    Wow, what a statement.

    • @josmc1 on January 27, 2026 at 1:31 pm

      Because its stupid. Agreed

    • @johanw8157 on January 27, 2026 at 7:09 pm

      @josmc1 anyone can say anythingis stupid. This says nothing about the original statement. Back it up with facts kid or just keep scrolling by

  2. @khanfauji7 on January 27, 2026 at 11:18 am

    Doctors will never ever tell you that. And they will feed you sugar while you’re getting chemo

    • @janiecebertrand6198 on January 27, 2026 at 11:25 am

      I’ve noticed in real time. Baffling to me🙏

    • @marn9739 on January 27, 2026 at 12:21 pm

      During chemotherapy, I’m offered fruit juices, cookies, lemon candy and chips

    • @xristinaxristina766 on January 27, 2026 at 12:42 pm

      ​@marn9739murderers

    • @dora-cristinahadjikyriacou2376 on January 27, 2026 at 12:49 pm

      ​@marn9739😢

    • @pamjeffdavis8974 on January 27, 2026 at 12:55 pm

      That’s crazy. Look how they treated the mentally ill turn of century with lobotomy. Insane. They either don’t care or just plan stupid. If cancer treatment was free wonder what would happen??

  3. @sickjohnson on January 27, 2026 at 11:26 am

    Dr. Berg dropping truth bombs like it is the infinity wars! Fasting that long will make your own cells consume the cancer…

    • @josmc1 on January 27, 2026 at 1:31 pm

      There is literally zero evidence this is true

    • @enewkirk1 on January 27, 2026 at 1:32 pm

      No, it wont.

    • @sickjohnson on January 27, 2026 at 1:47 pm

      We are literally the living evidence.

    • @tom8437 on January 27, 2026 at 2:12 pm

      ​I wouldn’t characterize it as “your own cells consuming the cancer”. But look up autophagy, it’s very real.

    • @sickjohnson on January 27, 2026 at 2:25 pm

      @tom8437 Sorry Tom, I dumbed it down too far for the smart ones….my bad.

  4. @doloreswinsbarrow1110 on January 27, 2026 at 11:28 am

    Thanks Dr Berg for sharing. This is a very helpful video.

    • @josmc1 on January 27, 2026 at 1:31 pm

      Helpful how? Giving bad medical advice?

    • @Isaiah45-21 on January 27, 2026 at 3:02 pm

      @josmc1 Big pharma just called, they said your YT propaganda session timed out and it’s time to go back home. 🤣

    • @Drberg on January 27, 2026 at 3:05 pm

      No problem. Glad to share this.

    • @kdcruz75 on January 27, 2026 at 4:22 pm

      Would an olive oil fast also work ..
      To cut of glutamine fermentation ivermectin as well…

    • @Straight2Comments on January 27, 2026 at 6:34 pm

      ​@josmc1Then tell us what to do Doctor?

  5. @rbhebron on January 27, 2026 at 11:36 am

    According to Dr. thomas seyfried, cancers are chronic metabolic disorders, not what every oncologist insists that it’s a genetic anomaly..
    To treat or weaken the aggressive cancer cells, you must remove /starve their fuel.. Fortunately, there are only 2 fuels that cancer cells uses.. Glucose, a sugar, & glutamine, a non-essential protein.. You can always remove carbs & sugars from your diet.. Thus removing glucose From your diet. But removing a non-essential protein, glutamine, a protein naturally produced by the body, hence a little tricky… This mostly means your diet is eat fatty meats & leafy greens, no fruits.. Your body will switch to eating ketones that cancer cells cannot use as fuel.. This will starve weaken cancer cells.. Which will eventually respond to less toxic chemo or radiation.. When they are weakened, you can now boost your immune system like NIVOLUMAB that enhances your T-cells to attack the now weakened cancer cells

    • @linamarie84 on January 27, 2026 at 11:57 am

      I wouldn’t listen to excess commentary from another doctor

    • @rhythmisadancer8394 on January 27, 2026 at 12:22 pm

      I dont believe it

    • @jamiestuart7249 on January 27, 2026 at 1:12 pm

      ​@rhythmisadancer8394you forgot the most important part= I’M AS SERIOUS AS CANCER 🫵 = 🤡🤯🤪🤡👍💯 P.S you better hope pray want etc etc that you DON’T end up with the BIG C because with the way you think , with the way you perceive what’s happening around yourself, let me put it this way 🫵🪦⚰️🪦⚰️🪦⚰️🪦👍💯 , all the very best to you 🌅🌄🌅🙏

    • @WorthMoreThanRubiesW.O.G-h8c on January 27, 2026 at 3:45 pm

      Thanks for the detailed explanation. I love learning and never knew what cancer feeds off of… I heard lots of people say “eat clean” but didn’t know what or why. Tfs

  6. @rbhebron on January 27, 2026 at 11:41 am

    Fasting is important but how to fast is very essential to starving or weakening your cancer cells… That will be very easy to eventual starving cancer cells to their demise…

  7. @tamibrooke5155 on January 27, 2026 at 11:43 am

    Have you done a video on parasites and how they help cancer and how to get rid of them yet? Any direct light therapy to blood, ozone therapy, hyperbaric oxygen, anti-parasitic control, T-cell therapy and the plasma exchange to get mold out of body 🤔

  8. @cedric3973 on January 27, 2026 at 11:47 am

    I wish I would have heard this sooner, thank you dr.berg

    • @theobanai on January 27, 2026 at 12:51 pm

      Bro are you okay?

    • @meloneyparker on January 27, 2026 at 1:03 pm

      Are you okay?!

    • @cedric3973 on January 27, 2026 at 1:28 pm

      ​@theobanaiI’m fine, thanks for asking. My father recently passed from cancer.

    • @cedric3973 on January 27, 2026 at 1:29 pm

      ​@meloneyparkerI am doing fine thanks for asking. My father just passed from cancer. There are quite a few things I wish I would have known sooner.

    • @meloneyparker on January 27, 2026 at 2:29 pm

      ​@cedric3973I am so sorry. My dad died in 2010 of cancer (well, from the affects of chemo and radiation) and I think about the “what if’s” every day.

  9. @DawwgHouse on January 27, 2026 at 11:53 am

    The only Doctor I trust!! Salute to you

    • @tsdbhg on January 27, 2026 at 3:14 pm

      He only has a degree as a chiropractor. Limiting advice you accept to a single individual who has no formal expertise is reckless.

    • @jeffchampagne9601 on January 27, 2026 at 4:09 pm

      @tsdbhgthankfully we have the freedom to choose who we trust and that he hasn’t been brain washed by the pharmaceuticals.

    • @theshadowfax239 on January 27, 2026 at 4:33 pm

      ​@jeffchampagne9601 Got to love this generation who listens to YouTube doctors.
      😂😂😂😂

    • @davebboggs2000 on January 27, 2026 at 6:32 pm

      ​@tsdbhgum hes gained degrees in nutrition… and what are yours? , narrative spewing bot, isn’t a positive.

    • @davebboggs2000 on January 27, 2026 at 6:34 pm

      ​@theshadowfax239um as you blindly trusted what “experts say” on your msm program brought to you by pfizer… talk about a fking lemming

  10. @rikimarudonchelie1229 on January 27, 2026 at 12:00 pm

    It takes a degree of will power, but if you have nothing to lose, why not try😊

    • @robertrossiter346 on January 27, 2026 at 3:02 pm

      it doesnt really, people just think it does, i do OMAD now, basically have a mean at 6pm then go to bed before 2am, you dont feel hungry when you wake up, your body is already using ketos, the hardest bit, is at dinner time, you conditioned to think you should eat, so it seems strange, but you dont feel hungry, ance after a while, 1 mean a day just seems normal

    • @snezhinka2737 on January 27, 2026 at 3:09 pm

      nahh, its hard for people nowadays because they’re so full of lies and they believe they need to eat 3 times a day. which is false as Fk.

    • @lynclarke6184 on January 27, 2026 at 4:03 pm

      @robertrossiter346easier if you live alone. I had a male family to feed!

    • @davebboggs2000 on January 27, 2026 at 6:30 pm

      ​@robertrossiter346most people only know the narrative created by big food and its more evil twin, big pharma .

  11. @OSPREYVILLE on January 27, 2026 at 12:31 pm

    Matthew 17.21. Pray and fast

    • @OSPREYVILLE on January 27, 2026 at 6:43 pm

      Amen​@bobbrownintruth

  12. @lynclarke6184 on January 27, 2026 at 12:48 pm

    I had stage 4 breast cancer that had spread to my lymph nodes. Ate a raw, whole food diet for a year. Had chemo and Radiotherapy and still here 31 years later. It can be done. I still fast once a month for 16hrs x 2 days.

    • @IsmailMarmoush on January 27, 2026 at 1:30 pm

      Basically Islamic lifestyle, we fast 3 days a month (optional), and one month every year (required for capable aka Ramadan) . May Allah guide you to Islam and keep you healthy.

    • @julzjulz5466 on January 27, 2026 at 1:35 pm

      @IsmailMarmoushIslam is the cancer

    • @owaisahmad6478 on January 27, 2026 at 1:52 pm

      Hey can you tell us what is a raw whole food diet?

    • @adityaneer on January 27, 2026 at 1:52 pm

      ​@IsmailMarmoushIt’s not only Islamic lifestyle. Hindu lifestyle also has days of the week when people fast. It depends on which god would you want fast for. And u go fasting for that day eating only fruits and water or just not eating at all. You can have multiple days of the week u can fast.

      Not to forget, Christians have Lent where they also give up something for a month. This is when the person can also give up food for a month or carbs as part of this.

    • @adityaneer on January 27, 2026 at 1:55 pm

      ​​@owaisahmad6478probably meant fresh fruits and vegetables, along with fresh milk (unpastuerized), eggs(poached)

  13. @thobik on January 27, 2026 at 1:01 pm

    Guys don’t forget Dr.Berg is not suicidal 😬

    • @DrPulvernice01099 on January 27, 2026 at 3:17 pm

      Yeah dw this isnt some Epstein situation. Even if you are like addicted 🤡

    • @Jollyman432 on January 27, 2026 at 3:56 pm

      @DrPulvernice01099 Might end up like Dr Sebi

    • @Rob_Owe on January 27, 2026 at 4:14 pm

      I came to say this as well.

    • @ric615palm4 on January 27, 2026 at 5:35 pm

      Can you explain what you mean by this

    • @deboraballes9044 on January 27, 2026 at 5:46 pm

      ​@ric615palm4Dr. Mercola came out a few years ago about all the “natural” Drs that were dying in strange circumstances. Drs that were curing cancer naturally and much more….a bit scary.

  14. @redreets on January 27, 2026 at 1:02 pm

    My dad couldn’t of done that because he was diabetic and on insulin.
    Lost him to that horrible disease last year 😞.

  15. @inductor1.77 on January 27, 2026 at 1:06 pm

    Too many comments talking about dry fasting. Your organs shut down after 3 days and you die in under 7. You have to drink water. Its very unhealthy not to drink water.

    • @GingerMomster82 on January 27, 2026 at 4:44 pm

      What about electrolytes?

    • @Romans1.24-27 on January 27, 2026 at 5:58 pm

      Exactly……lemon water ..a ton of it

  16. @ts4686 on January 27, 2026 at 1:07 pm

    Yet the hospitals, doctors and nurses will force feed cancer patients A LOT of food AND force em to eat an eff to of sugar 😤😠😡

  17. @Drberg on January 27, 2026 at 1:29 pm

    👉 Get Dr. Berg’s Daily Routine as a free download:
    https://drbrg.co/4jYE31M

    • @wildroseofaz.6702 on January 27, 2026 at 1:43 pm

      What would you be putting in your body if not food, plain water, broth, what?

    • @gloriagold9742 on January 27, 2026 at 2:40 pm

      Please give examples on how to conduct the 20 – 30 day fast. How would we go about each day?

    • @karenhayes2776 on January 27, 2026 at 2:47 pm

      Thank you, Dr. Berg

    • @madhavjha2971 on January 27, 2026 at 3:00 pm

      I find this video very miss leading
      Please make a proper video explaining your claim
      Even though I am not a doctor I know that if we starve for 20 days first our body will burn fat then it will start burning muscles and organs and our immune system will become extremely weak

    • @S.A.M-v9q on January 27, 2026 at 6:39 pm

      ​@madhavjha2971I read somewhere that a Japanese doctor did this study about fasting = not eating or as Dr berg said starving then your body start eating itself or normal cells or healthy cells start eating the sick one.just search for this study it’s not new.
      Excuse my poor English 😊

  18. @LIFE8destiny on January 27, 2026 at 1:39 pm

    Dr. Berg – woukd you be taking supplements during this time frame and whhat woukd you be taking and how much and when …ex…electrolytes etc..

  19. @docathelake on January 27, 2026 at 3:02 pm

    Thank God someone finally has the balls to say this online!!! My wife’s cancer surgeon was so stupid he thought all food was converted to sugar before it was used as energy!!! smh the only reason chemo even works is because it makes you throw up or not hungry or diarrhea which is a form of chemical fasting and also why the cancer comes back if you go back to a carb or high protein based diet!!! High fat is the key and this is achieved after just three days of fasting!!! And since most microbes only live three to four days that’s all it takes to make a difference!!! And they replicate in 5 to 10 minutes when fed so this is why even a little cheating makes a huge difference in success…don’t wait for it to be life or death , I’ve seen way to many patients and friends chose death over life just so they wouldn’t have to change their diet… js

  20. @TheKnightOperator on January 27, 2026 at 3:41 pm

    Agree, I’ve told many people with cancer to attempt this. Unfortunately none of them did. They’re all gone. It’s unfortunate because I’ve done 42 days water salt vitamin only, to lose some weight, and they couldn’t do 20 to save their lives, even when I offered to coach them.

    • @blackdagger7332 on January 27, 2026 at 6:08 pm

      I did 64 days hehe…

    • @peace8096 on January 27, 2026 at 6:18 pm

      How did you take vitamins on empty stomach

    • @BigVlad357 on January 27, 2026 at 6:24 pm

      My mother tried this, didn’t work. Doesn’t work all the time

    • @peace8096 on January 27, 2026 at 6:27 pm

      ​@blackdagger7332how ?

    • @davebboggs2000 on January 27, 2026 at 6:41 pm

      ​@peace8096with a swig of coffee.😂

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