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DOES THE KETO DIET KILL? Doctor Reviews Low Carb Diets and Mortality

Hey guys, I’m Siobhan a second-year medical resident Today we’re tackling a super controversial issue and that’s The Keto Diet The question is – is the keto diet actually making you live longer? or could it be actually killing you faster? The keto diet is a very low carbohydrate diet. About 75% of calories come from fat 20% from protein and only 5% from carbs It’s become one of the most popular diets online and it’s been praised for weight loss, heart health, diabetes management and some even believe it fights cancer. But others think it’s probably just a fad diet and it’s just gonna come and go. Just this week, there was a groundbreaking article from The Lancet which totally changed the conversation It’s an article that looked at how much carbohydrates people are eating and if that affected life expectancy. By the end of this video you should be able to make an educated decision about what you want to do with your diet And then I’m gonna *urge* you to share this with people you care about because this could actually affect how long they live. *violin intro plays* So those of you who’ve been following my journey in the hospital at the new doctor know that about six weeks ago I started the keto diet. and the reason I did that is because Overnight I find they’re just so many chips and snacks and candy and … I- This whole year I just feel like I have strayed from my normal habits and so I kind of just needed like a reset and I figured that keto would do that. And it did. like I lost a couple of pounds I put on last year and I haven’t been having sugar cravings It was great. So this week when I was flipping through my computer I saw this article And I figured it was gonna tell me that the lower the carbs you eat the longer you live But that’s not exactly what it says. So the study started about thirty years ago, when they recruited a whole bunch of adults from four different communities in the US They recruited about 15,000 adults and then had them do surveys and they kept track of their health and they tracked them over about 30 years. *okay, that’s deep* So let’s pretend these skittles represent the people in the study First let’s divide them into the amount of carbs they eat in a day. The yellow ones the low-carb group. And so these people about less than 40% of their calories from carbs. The green ones of the moderate carb group. So these guys bought about half of the calories from carbs. And the red ones are the high carb group where they got over 70% of their calories from carbs. Of course this is a simplified model and in the study they worked with really fancy statistical models to get lots of accurate information. So looking at mortality within these groups. It turned out the low-carb (yellow) group and the high-carb (red) group actually died faster than that middle green group. So it looked like Goldilocks and the three bears. The middle 50% carb group actually lived the longest. And you can see that it has this U-shape, and we actually call that a U-shaped relationship. They’re estimating that in this in the low-carb group and the medium-carb group, That was almost a four-year difference in their life expectancy. That’s like high school. That’s university. That’s so many life experiences That’s huge. I mean, we can’t ignore that. Definitely not what I expected. Definitely a huge shock to hear. Question 2* So then the next logical question is if you have lower carbs you’re eating more fats and proteins Does it matter what types of fats and proteins you’re actually eating? So they went back to the database and they looked at all the people and they wanted to see the group that eats mostly animal products. So they’re eating meats and cheese, lamb pork, beef, chicken all of that compared to the people who are eating plant-based proteins and fats. So they’re eating nuts and peanut butters and seeds and they’re having lots of vegetables. And unfortunately all those meat lovers out there, it was very clear that people eating plant-based proteins and fats were living longer than those who ate the animal proteins and fats. And that’s tough for me. I actually really love a good steak. *pleasure* Ooo boiii

95 thoughts on “DOES THE KETO DIET KILL? Doctor Reviews Low Carb Diets and Mortality

  1. I have one question for you my dear.
    Natural Selection..Our ancestors ate just meat for 200 thousand years or more and they thrived!
    You need to do a lot more studies before arriving at the conclusion you have arrived at.
    What about sugar? Smoking? Over drinking? Lack of exercise? There are too many variables you left out.I saw a study that proved that vegetarians did not live as long as meat eaters.
    I am a copy of a copy of my ancestors.
    I am here because of natural selection.
    We only change our diets in the last 50 or 60 years…Lots more sugar 170 Lbs a year compared to 2 Lbs a year.
    Lots of butter prior to the 50's. No corn oil(Deadly)
    Lots of saturated fats.
    Eskimos eat mainly blubber…Fat! Their heart disease and heart attack rates? 0%!
    The question?……Have you read and studied enough on the subject to really be able to make an educated decision on the Keto diet?
    On the Keto diet your protein….Meat….is only 20% of total calories…that is about 400 calories the rest of the fat comes from avocados and olive oil and coconut oil and nuts and so on
    In the studies you read …how much meat where they eating? 30? 40% of their calories?
    look at it again.
    eating lots of vegetables negates any negative effect from eating saturated meats.
    Look for the studies..they are there.

  2. Moreover correlation is not causation. Basic statistics. The variables are huge including the actual food that this people are and not just the macros. I could easily think of the most unhealthy keto diet ever and sure I feel very bad and probably not live long

  3. My problem is I can't eat veg never have been able to it really makes me sick so I vertually live of meat so I do the keto diet but leave out all the veg

  4. A mostly plant based diet is the best but you can eat most things in moderation. Fix your gut, eliminate stress as much as possible, get a good night's sleep and pray or meditate. You'll live a long, healthy life. I'm 60, in shape with no medical issues . So far it's working😉

  5. I think the thing is there is a balance in nature. Nature tries to bring animal populations into the balance by killing the species faster which eat other species. Nature has to do that.

  6. I don't believe this is detailed enough. You have to look at what meats people are eating. Are they eating conventional beef, chicken, or pork that are packed tightly together, given hormones, steroids, and fed only grains with way too many Omega 6s. Or are they pasture raised and 100% grass fed. Eggs are the same way. Pasture-raised local organic eggs are very healthy. I think there are things to learn from the study, but I don't think it breaks into enough detail to see the big picture. Not only the quality of foods eaten, but doesn't talk about intermittent fasting. What I can tell you is what the keto diet has done for me. My blood pressure is normal now and no longer take any medication. My blood sugar is back to normal and off diabetic medicine. Lost 40 pounds in three months. I would have to examine the parameters of the study much closer and who funds it before I make a definite conclusion. By personal experience I find getting carbs out of my diet has helped my health tremendously.

  7. Hmmm, so since starting the Keto diet 10 months ago I have lost 75 pounds, improved my blood pressure to what it was in my early 20’s, gotten down to 26.8 percent bodyfat, regrown hair on my head, become calmer, retained muscle mass, improved my HDL and LDL numbers, look about 10-15 years younger, reduced inflammation, am eating much less and could go on an on. These results should be coming from a plant-based diet. But it’s not the case. I eat a lot of meat and very little veg. Most of my fat comes from an animal of some kind. 70-plus pounds ago I ate good carbs, vegetables, nary a meat-based protein. And then, as several studies suggested that carbohydrate rich diets increased risk and severity of dementia in rodents I decided to do keto. I am often taken to task for doing keto by people who insist I’ve turned myself into a medical timebomb. Yet the results are quite clear. It may be telling, to some degree, that many of those who warn me insist on the health benefits of grain, veg and generally carbohydrate based diets while often looking like they’re suffering from poor health. Just my own experience and not projecting it onto others here.

  8. Observational studys are no good. The 50/50 group were more than likely eating a healthy balanced diet compared to the ones rather eating high carb or high fat unhealthy diets imo

  9. 40% Carbs is Very HIGH Carbs (Not even close to LOW carbs 5%), A survey is not a study, but just a questioner. How accurately can you answer questions like what did you eat last Tuesday?..and how did you feel?
    The Keto diet should be done CLEAN with loads of Vegetables and healthy fats. The meat is also essential but in moderation.

  10. So my question is; if we do keto for a short amount of time.. say maybe two years to get stubborn weight off, and then switch to a healthier diet introducing healthy carbs back in and eating the right amount of calories, will this have the same effect? I lost 70lbs on the keto diet before I got pregnant. Obviously didn’t diet while I was pregnant, in fact, I kind of went back to my old unhealthy ways with the cravings and treats and what not. I’m now doing keto again to loose the baby weight, and have lost 32 lbs already. I live a ridiculously busy life now with a toddler, full time in school, and a job as a hairstylist. The keto diet helps me with weight loss as I’m working, and once I have the weight off and can work regularly without being busy night and day, I plan on eating a healthy, balanced diet and get a little more exercise in.

  11. This was a great video… 😊 And I just wanna say Hi to the Keto Police 😊

    I think people are overlooking the fact that the people who live longer are not low carb.

  12. Love the video, I'm really happy to see a non bias approach here. My two issues with the data presented here is firstly that it's a survey study. It's enough to show there is need to learn more about low, high and medium carb.
    The other issue I have is twofold with the 'meat'. There have been some studies comparing meat quality and it's benefits. But almost all these studies are including processed Industrial farm meat. While living long may not be part of the benefit of meat consumption there are human groups who live long, high quality lives on meat only. So, that needs to be explained too somehow.

  13. I think the keto diet is a great diet for killing addiction to sugar and losing weight but I think occasionally people should eat carbs when they have reached their goal

  14. I don’t think you understand keto at all. So, you can stop talk about the topic until you spend some time on learning what is KETO.

  15. Great video ! Thanks. I’m mostly vegetarian without even thinking about it although I do enjoy a good steak here and there. But I sure cannot be high carb ever again!

  16. I don’t trust this at all! All 3 family members I know who lived to 100 or beyond ALL ate high amounts of animal fats and proteins and moderate to small amounts of grains and vegetables.

  17. Love, you’re a resident, relax. Half of the time when you guys come to the bedside, you guys don’t even know what you’re talking about. So I wouldn’t take advice from you, sorry. Let me know when you become a (fellow or attending). We can revisit this.

  18. I quit eating carbs such as pasta, bread,snacks, potatoes etc. I eat meat, Vegies, salads no sweets at all. I'm 62, I lost 45 # in 6 months. I'm 5foot 10 1/2 inches tall. I was 225 # now I'm at 178# I will continue to eat healthy as it seemed to take me to a healthy weight.

  19. I'm not on keto but on ow carb diet, the one recommended for diabetes by Dr Richard Bernstein and it changed my life, high protein moderate fat and low carb was the key for good management of diabetes, I believe in the numbers that the glucometer shows me, and the analysis results too, so sorry but no healthy life with high carb for me

  20. You are a wicked Dr. what is the healthy benefit of high carb . A lot of people are sick and dies from sugar diseases and you are here open your mouth to high carbohydrates

  21. Keto saved my life! Period! After 4 months my doctor looked at my numbers and took me off all my meds! No more blood pressure meds, no more Lipator, 42 pounds gone, sleeping better than I have in my entire life. Oh, and autophagy…varicose veins gone, allergies gone, colds last about a day. No flu. No more twice a year on a Prilosec regimen because…indigestion gone! Was being 50 pounds overweight going to have no effect on my life span? Being on keto is going to kill you four years faster than being morbidly obese??? Get real! A true keto follower will, of course, incorporate intermittent fasting and healthy fats but I have always enjoyed the occasional rib-eye and probably will continue to. Oh, and btw, 40% carbs won't get you into ketosis. If your body doesn't switch from using glycogens in favor of ketones for energy, It's not keto!

  22. Did keto under 20g of carbs a day. Very strict keto. I am severe Hashimoto hypothyroid. Keto made my hair fall out even more and not cyclical . Just kept losing hair. My thyroid worsened. I almost fainted at work 3 times. Black spots. Very sick . Not keto flu. As I did it for more than 6 months. Nope bad , will never, ever do keto again.

  23. Hi, I love the different approach you have taken to show us what is right and what is wrong. I am 68 yes old and my son helped me to go on the ketogenic diet and I have lost a lot of weight but I'm not a lover of meats and animal fats. You definitely pushed the rite buttons for me and I agree with you because it's very difficult to find grass fed/organic meat. All the other meat is bad for us but on the other hand the veges and fruit should be organic grown as well as everything is bombed with hormones and sprayed with pesticides let alone gmo, also fish from fish farms is even worse. Can you help us with what to eat to have a balanced diet with all the nutrients and vitamins that our body needs. One more important issue is can we have a day off or can we go out of the way and have a carb day once a week or so? Love from Helen, in Kefalonia, an island in Greece.

  24. Sorry – but there is no way a second year medical student has even lived long enough to properly study this issue. Additionally, medical doctors are notorious for receiving essential no education on nutrition within the typical medical training.

  25. Looks like I am super blessed. I am 68 (with teenaged kids I want to see full grown ) and have painful hip arthritis and diabetes and also am 70 pounds overweight. Plants are best for arthritis and longevity, keto is best for weight loss and diabetes management and pain is best to keep me on course so I have a better chance of seeing kids grown and on their own. No really. I am the master of my own disaster and am so thankful that the internet via YouTube has educated me on a way out of my predicament.

  26. YES KETO DIET KILLS…….. YOUR APPETITE! This young lady needs to stop looking at epidemiological reports and look at scientific research!

  27. Diets should be cycled the way our ancestors did,high plant based diets will give you too much Oxalate toxin , nuts and whole grains like oats will poison you with Ochratoxin A and phytic acid, nutrition is a minefield, our bodies have systems to cope with high meat diets best, the old cholesterol myth has been well debunked,elevated blood cholesterol does not indicate oncoming heart disease, look at the evidence

  28. So…….you want to add on more years to your life. Hmmmmmm, when I look at quality of life at the end of other peoples lifes it makes me question rather it is worth it.

  29. Been doing keto for a month and a half (45 days)…and I eat chicken, ground beef, eggs, fish, pork chops, steak, bell peppers, lettuce, extra virgin olive oil, avocado, cauliflower, broccoli, coffee black with monk fruit, cauliflower rice, a little sour cream and ghost pepper hot sauce, strawberries, peanuts, pork skins, celery w organic peanut butter, and string cheese. I WAS 230LBS and just after 45 days I weigh 209lbs. THATS 21LBS IN JUST A MONTH IN A HALF!!! I have never FELT BETTER IN MY LIFE. JOINT PAIN GONE, HIGH BLOOD PREASURE GONE, HEADACHES GONE!!! …and once in awhile I have a bang energy drink (they are 0 calories, 0 fat, 0 suger, and 0 carbs) with great flavors!

  30. @Violin MD I appreciate your passion and your dedication to study medicine. I do not see any response to the comments below.

  31. Japanese people live the longest if I'm not wrong they have the lowest obesity rate and they eat rice fruits meat n fish ….they avoid junk food n use less oil ….I've seen a let of keto experts like dr Eric berg and they all look thin yet sick I believe that balance is the key here

  32. My problem is that I know the science says that meat and refined carbs are bad for me, but my stomach just can't deal with fiber. All whole plant foods give me diarrhea. I cannot get used to it.

  33. I was 120k now I'm 78k in 4 months keto diat and intermittent fasting… my target is 70k then I will stop keto. I will go with intermittent fasting…I hope success for everyone

  34. You lost me when you tried to show some sort of statistical information using skittles lol. I'm healthier now than on the standard diet… when you do a study starting with bad info then the study is doomed just saying. Keto is 20 grams of carbs or less per day, 40 grams a day isn't keto

  35. The title of this video is a bit misleading. The study didn't investigate the ketogenic diet. There is no relevant data in the study pertaining to the ketogenic diet. No mention of ketosis in the study that i noticed in my quick review. Metabolic activity with respect to glucose vs ketone is a night and day difference. I believe the best advice no matter your diet is to eat whole unprocessed foods.

    This study poses a question. It doesn't make scientifically accurate conclusions. For those conclusions we should look to metabolic ward studies, studies that conduct blood and urine analysis, and randomized controlled trials.

  36. You lost water weight on keto you know why the steak tastes good for because of salt spices try eating a steak that's been boiled in water was no salt or spices and tell me how it taste oils not good for you it's empty calories the fat you eat is a fat you wear

  37. 4 years seems pretty negligible to me and what did they die from I doubt the validity of a lot of studies done by surveys I highly doubt out of 15,000 people even any one person broke down everything they ate for 30 years but just my opinion

  38. What people need to eat mostly is green vegetables and lean meat and protein like eggs, yogurt And cottage cheese ,carbs are dangerous to our bodies As most of us over eat them Carbs make sugar which is dangerous to a lot of people especially people like me that are type one diabetes . One must limit their carbs very closely.

  39. I feel like this whole "who lives longer" thing is sort of a misconception. To be quite honest, the older you get the less valuable the life becomes. I mean, you live to be 115, are you really living? Maybe not right. Maybe you are just spending a lot of time at home watching TV/sleeping, etc etc etc. So I don't think "living longest" is a good goal. I think living healthy, for the years you are alive is what is most important. Because It also works in reverse. Could you imagine living with Cancer for 30 years? I wouldn't wish that on anyone. Let's just say you live to be 78 years old, which is the average American age. That is pretty good, do you really want to be 85? 90? So I think people should focus on being healthy from the time they are young, to like 70 years old. I think for most people, Keto does that. Keto does a good job at lowering the chances you will live a life of disease. If that's not . a good thing, I don't know what is.

  40. The low carb group did not actually mean high fat/protein. They could have been high fiber. The study showed life expectancy based on carb intake—not fat/protein and other significant parameters.

  41. I watched this post of yours and realized I'd already watched Dr. Ken Berry on the same topic, here it is at https://www.youtube.com/watch?v=Ce6eHcUOc4s It crushes the study pretty convincingly.

  42. I think it's all about a balanced diet. To much of anything is not good for you. Veggies, nuts ect contain oxcelates and lots of antinutrients, only reduced by cooking of fermenting and even then still contain these. So eating lots of kale of green leafy vegetables every day might not be so good for your digestion causing inflammation and gas in the gut as toxicity builds up. And fibre is indigestable. In the native tribes and in nature humans would eat more fats and meat and some greens, small amounts of fruits for energy before a hunt, and starches here an there where available. Studdies now show saturated fats are not the cause of heart disease, does not clog your arteries, and that having a high LDL is also not linked with heart disease or arterie problems. High LDL only becomes a problem when you add sugar, fructose is even worse, and high amounts of carbs into the equation




  43. This vid is presenting misinformation. People on the Keto diet are encouraged to eat a ton of nuts, healthy oils, avocado, cruciferous vegetables along with protein. There is a difference between healthy Keto and what is referred to as dirty Keto. This was never mentioned in this video. Currently have lost 44 lbs. since August on the diet and recently got my lab work back which is damn near perfect. No high cholesterol, blood pressure normal which was better than where it was prior to starting the diet, my blood glucose is perfect. This program works if you follow it properly.

  44. CARB Metabolism

    @Samuel Khasin

    “Connie Fillippelli I'm sorry that I was unclear, but assuming that I was calling DNA pseudoscience is a little silly. The idea that people can be "fast metabolizers, moderate metabolizers, or slow metabolizers of carbs" is, I believe, pseudoscience. “

    Samuel, it is not pseudo science.
    I spend my days researching information on medicine, science and technology.
    In my past life I was a Biomedical Communicator. I prepared audio video programs to doctors, nurses and other medical staff. I also freelanced for a major research hospital.
    Last year I read Dr. Sharon Moalem’s book, DNA Restart. In it he had a test to see if according to your DNA you metabolize carbs fast, slow, or moderate. I took the test and found I metabolize carbs slowly. A fast carb metabolizer may take an hour or 90 minutes to process carbs, I take 9-10 hours. There is a direct correlation to your weight and how you metabolize carbs. Then I did my health DNA a few months after that. It was confirmed. I did another DNA and found my ancestors did not have starchy foods to eat.

    Here is the research!

    Falchi M, et al. Low copy number of the salivary amylase gene predisposes to obesity. Nat Genet. 2014 May; 46(5):492-7

    Almal SH, Padh H. Implications of gene copy-number variation in health and diseases. J Hum Genet. 2012 Jan;57(1):6-13.

    Falchi M, El-Sayed Moustafa JS, Takousis P, Pesce F, Bonnefond A, Andersson-Assarsson JC, Sudmant PH, Dorajoo R, Al-Shafai MN, Bottolo L, Ozdemir E, So HC, Davies RW, Patrice A, Dent R, Mangino M, Hysi PG, Dechaume A, Huyvaert  M, Skinner J, Pigeyre M, Caiazzo R, Raverdy V, Vaillant E, Field S, Balkau B,

    Marre M, Visvikis-Siest S, Weill J, Poulain-Godefroy O, Jacobson P, Sjostrom L, Hammond CJ, Deloukas P, Sham PC, McPherson R, Lee J, Tai ES, Sladek R, Carlsson LM, Walley A, Eichler EE, Pattou F, Spector TD, Froguel P. Low copy number of the salivary amylase gene predisposes to obesity. Nat Genet. 2014 May;46(5):492-7.

    Girirajan S, Campbell CD, Eichler EE. Human copy number variation and complex genetic disease. Annu Rev Genet. 2011;45:203-26.

    Mandel AL, Breslin PA. High endogenous salivary amylase activity is associated with improved glycemic homeostasis following starch ingestion in adults. J Nutr.  2012 May;142(5):853-8

    Mandel AL, Peyrot des Gachons C, Plank KL, Alarcon S, Breslin PA. Individual differences in AMY1 gene copy number, salivary α-amylase levels, and the perception of oral starch. PLoS One. 2010 Oct 13;5(10):e13352

    Novembre J, Pritchard JK, Coop G. Adaptive drool in the gene pool. Nat Genet. 2007 Oct;39(10):1188-90

    Parks BW, Nam E, Org E, Kostem E, Norheim F, Hui ST, Pan C, Civelek M, Rau CD, Bennett BJ, Mehrabian M, Ursell LK, He A, Castellani LW, Zinker B, Kirby M, Drake TA, Drevon CA, Knight R, Gargalovic P, Kirchgessner T, Eskin E, Lusis AJ. Genetic control of obesity and gut microbiota composition in response to high-fat, high-sucrose diet in mice. Cell Metab. 2013 Jan 8;17(1):141-52.

    Perry GH, Dominy NJ, Claw KG, Lee AS, Fiegler H, Redon R, Werner J, Villanea FA, Mountain JL, Misra R, Carter NP, Lee C, Stone AC. Diet and the evolution of human amylase gene copy number variation. Nat Genet. 2007 Oct;39(10):1256-60.

    Santos JL, Saus E, Smalley SV, Cataldo LR, Alberti G, Parada J, Gratacòs M, Estivill X. Copy number polymorphism of the salivary amylase gene: implications in human nutrition research. J Nutrigenet Nutrigenomics. 2012;5(3):117-31.

    Sudmant PH, Kitzman JO, Antonacci F, Alkan C, Malig M, Tsalenko A, Sampas N,Bruhn L, Shendure J; 1000 Genomes Project, Eichler EE. Diversity of human copynumber variation and multicopy genes. Science. 2010 Oct 29;330(6004):641-6.

  45. Eh 40 procent carbs of entire dri is not low carb😃

    40 grams of carbs a day is.

    I think the funniest thing is that you from one study change completely how you view this.

  46. The epi-study was biased crap and not even keto or low carb. Violin MD is completely wrong here. Watch Dr. Ken Berry’s review of this “Harvard” study. Link is a few comments below.

  47. Also let’s note under 40% carbs does not mean low. A diet that’s 35% calories from carbs is far from a low carb diet. If you eat 2500 calories per day at 35% carbs that’s 218 grams of carbs per day which is a pretty high carb diet!

  48. And to go into ketosis and then to fasting can help you kill candida and 1 mouth bacteria that stimulates Alzheimer's. And ADHD, autism and dementia have intake reuptake problems and high inflammation because of toxins so it doesn't matter if it comes from meat or animals. And they crave sugar much more than others. In the end its Al about the toxins and the hormonal imbalance because of it.

  49. I feel like you might want to do some more research on keto and maybe understand what people are recommending. Even in the keto community they recommend healthy portions and healthy fats in a balanced way.

  50. Can you link their deaths to the diet and not some other cause or genetics? Not much of a study if you lack essential information. and just attribute it to a diet. because that was all they were concerned with. It baffles me how so many nutritionist and doctors dont even understand how the keto diet is done properly. and just assume its unhealthy. then claim a uncontrolled study is proof.

  51. This is just my opinion but I think that obviously eating healthy is a big factor into how long you live, however, genetics also have a huge part in it. I have an uncle who is about 64, he's extremely healthy and fit, but a year ago he still had a pretty big heart attack and had to get a triple bypass. Even if you are the healthiest person ever you can still die early.

  52. Trash channel, spreading misinformation on a diet that saves lives. I'm glad you're getting destroyed by your own subscribers.

  53. Keto certainly is good for resetting the system but maybe it should be done for only a few months in a year. Same way as how our ancestors had different diets according to season

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