The Dangerous Truth About Olive Oil!


Proč mají lékaři v oblibě Dr. Michalela Gregera a Dr. Cldwella Esselstyna. Dr. Michael clapper a dr. Neal Barnard doporučují přestat konzumovat olivový olej Z čeho usuzují, že olivový olej není zdravá potravina? Odkazují se většinou na záklaní studie, zvláště na tu, kterou provedl dr. Robert Vogel z University ve státě Maryland Ve studii chtěl otestovat vliv olivového oleje, řepkového oleje a rybího tuku na kardio- vakskulární systém. K tomu použil něco, čemu se říká turiketový test brachiální arterie. Testoval deset zdravých dobrovolníků s normální hladinou chlesterovlu v krvi, kteří zkonzumovali 50 gramů tuku s chlebem Testoval se olivový olej, řepkový olej a rybí olej (z lososa). Dobrovoníkům měřili arteriální proudění krve v předloktí před a po každé konzumací jednodlivého typu tuku, aby zjistili, jak různé jídlo ovlivní proudění krve či zda má vliv na Endothelialní výstélku vnitřní stěny tepny předloktí a jak po každém jídle krev tepnou proudí. dr. Vogel zjistil, že po konzumaci olivového oleje dochází k masívnímu snížení průtoku krve a to až o 31%, po konzumaci řepkového oleje se sniží proudění o 10 procent a konzumace oleje z lozosa redukuje proudění kreve pouze o 2 procenta Proč bychom se o to měli zajímat? No, když arterie tlačí či nepřiznivě ovlivňují vnitřní stěnu-endothelium výstélka našich kardiovaskulárních orgánů je poškozována a to spouští vytváření plaků a přispívá ke skleróze arterií. Ty přestávají být pružné. Stane se to samé po konzumaci jakýchkoli tuků? Nestane! Je zajímavé, že po konzumaci vlašských ořechů (obsahují tuk) bylo naměřeno turniketovým testem navýšení proudění krve v arterii předloktí o 24%! Jakým způsobem tedy olivový olej zužuje / ovlivňuje naše cévy? Zdá se, že je to tím, že jídlo s vysokým obsahem tuku blokuje shopnost endothelia produkovat oxid dusíku, který působí jako vasodilatační látka (rozšiřuje cévy) a jeho přítomnost je velice důležitá pro zachování pružnosti a zdravého kardio-vaskulárního systému. Bylo zjištěno, že opice metabolizují tuk stejně jakou lidé. Tak se dr. Lawrence Redell z Wake Forest University Baptist Medical Center rozhodl provést 5-ti letou studii, ve které krmil Africké zelené opice stravou, která obsahovala hodně olivového oleje po dobu 5 let a poté porovnal jejich cévy se skupinou opic stejného druhu, které dostávali místo olivového oleje nasycené tuky. Předpokládal, že opice krmené stravou obsahující olivový olej budou zdravější a nebudou vykazovat změny v cévách. Avšak, přesto, že opice krmené stravou s olivovým olejem měly vysoké hladiny HDL a nízké hladiny LDL choleterolů, měly stejně problémů a vykazovali stejný počet koronárních srdečních onemocnění jako skupina opic, která konzumovala jídlo s nasyceným tukem. Zopakoval studii s hlodavci a dostal stejné výsledky. Nakonec mi dovolte dodat jasný důkaz za života. Dr. Caldwell Esselstyn je věhlasný chirurg a specialista na nemoci srdce a je znám svojí knihou o prevenci srdečních chorob a dokonce jejich přirozenému vyléčení Dr. Esselstyn vypráví příběh o svém pacientovi, který prodělal operaci pětinásobného by-passu v roce 1990 Po operaci jedl pouze rostlinnou stravu (plant-based diet) a zredukoval svoji mnostnost z 95,5 kg na 70,9 kg Po dobu 14 let jedl rostinnou stravu a udržoval si svoji hmostnost, ale v roce 2004 začal pociťovat příznaky návratu srdečních problémů. Dozvěděl se o úspěších dr. Esselstyna s reverzí srdečních chorob a kontaktoval ho a sděloval dr. Esselstynovi že jedl pouze celozrnné výrobky, luštěniny, zeleninu a ovoce. Dr. Esselstyn byl velmi zaskočen a nechal pacienta zopakovat co přesně jedl ještě jednou. Ten to zopakoval přesně a tvrdil, že nic nevynechal. Ovšem pak se ukázalo, že pacient opomněl sdělit, že při každém obědě a večeři konzumoval ollivový olej a ještě si ho dával do salátů. Dr. Esselstyn mu doporučil přestat okamžitě konzumovat olivový olej a během sedmi týdnů kardio-vazkulární problémy kompletně zmizely. Děkujeme, že sledujete naše videa. Pokud se vám líbí, sdělte nám to zdviženým palcem. Mužete nám rovněž ponechat vzkaz dole pod videem a přihlásit se k odběru našich dalších videí.

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Reader Comments

  1. Raider Fann

    They’re comparing olive oil to whole whole salmon and whole walnuts? Not good. They should be comparing WHOLE OLIVES to salmon or walnuts and then this turns to rubbish.

  2. ProperJelly Don't be proper;3

    So this means I don't need fish to live? I can stop eating tuna etc? Cuz I already take b12 vitamins. Do I need anything from fish?

  3. Lisa k

    Dr Vogel study was done 18 yrs ago and was a small study and was never reproduced as far as I know.
    also Vogel's own research, in fact, has shown that when olive oil is combined with foods rich in antioxidants, such as vegetables, the vessel-constricting effect disappears. All you have to do is combine olive oil with red wine vinegar, or vegetables. not to mention olive oil has been shown to lower blood pressure.

  4. Sandy Toomer

    With bread? Notice the test was done WITH BREAD, a notoriously insulin boosting food product. In fact most T2 diabetics can't eat bread without potential insulin spikes and other side effects. Then I wonder, "How much bread?" "What type of bread?" White French baguette? Seems to be a flawed experiment that includes a known variable that would push results towards the WFPB diet proponents camp. Remember: Saturated fat is not linked to heart disease in the absence of refined (starchy) carbs and sugar.

  5. Eelke Aptroot

    Plenty of vegans out there who still believe it's a health food, usually there'll be like the Mediterranean diet though or cold-pressed though…

  6. m nayak

    I wish they compare olive oil, canola oil, coconut oil and sunflower oil ,so I will know in cooking ,which oil sluggish blood flow more, which oil to use to season , I use one tea spoon to season

  7. Alison Jane

    So it was nothing to do with the bread then?????? Lets just ingnore the fact that a truck load of carbs were consumed with the fats shall we.

  8. Bizzare77777

    GOOD GRIEF! Now Olive oil is no longer said to be healthy?? Why didn't study even mention the type of olive used. Have these negative effects been proven on all types of Olive oils?

  9. Flying Angel

    Why are people demonizing the plant based lifestyle so much lately? Like, people are telling how they went vegan for over 10 or 20 years and that it literally f-ed up their lives, they got sick and that veganism is a cult and dangerous….??????

    Some are calling it big bs, illuminati and pure evil, that it’s the work of that devil with all of that veganism going on, that its a big cult which goals are to destroy humanity and get people sick and weak.

    I just watched a video from a YouTube woman that is bashing the lifestyle so much, and I wonder how many people commented there and agreeing with what she has to say. She was vegan for years but she tells that it made her so sick and now she is „warning“ people to stop doing it. She spent thousands of dollars since she started, that it cost her so much money and she calls it fake agenda with paid studies, extremely dangerous and so on…

    Why is that?

  10. M B

    For 2 million plus years we have been consuming monounsaturated and saturated fats in large quantities without any ill effects. The animals we hunted and killed, the plants we foraged. Why is it a problem all of a sudden? Heart disease wasn’t an issue until today. Olive oil is an innocent bystander. The bread used to dip in it now that’s a problem

  11. Laurie Paris

    I'd really like to see this study repeated with the oils on a salad or on fruit, to see if they helped offset the effect of the oils. Did check to find out how much 50gs of oil (the amount used in the study) was in teaspoons… it turns out to be 11 teaspoons! 😨 ulugh! That's a lot of oil! Also curious to see how Walnut OIL would fare tested both with the bread and a salad… being as its mentioned in the video that WHOLE walnuts reduce blood pressure. Prolly never see that study, but I can dream! 🌱

  12. Cammi Eklund

    Dr Michael Mosley did a trial on different oils, one group got olive oil and the other groups had rapseed oil and some other, don't remember now, but another plant oil. The olive oil eaters had significantly more heart protection markers by the end of the trial! And he recently did a study on coconut oil, he believed it was bad and going to raise the bad LDL. To his surprise it didn't raise their ldl and their GOOD hdl raised with 15 percent. These guys ate 50 GRAMS a day. Their weight didn't change to their surprise. The plantbased doctors have outdated information. There is absolutely NOTHING wrong, and it also have HEALTH BENEFITS to eat a little olive oil and coconut oil here and there combined with a healthy diet. The oils is going to make you absorb a helluva lot more nutrients from your food! This has been demonstrated in several studies. Omg, when are the plantbased doctors going to let go of their old and outdated dogma!!???

  13. Tyler Murphy

    I wish someone told me this 3 years ago BeFoRe I had started consuming 6 tablespoons of olive oil daily, I'd probably be bigger and stronger than I am now. In my opinion it is not the consumption of olive oil but the consumption of iodized table salt, regular table salt that causes people problems, regular iodized table salt is very often one third glass one third sand and 1/3 salt and even if you do not add salt to your food it is in most everything nowadays this causes damage as it moves through our veins and arteries micro abrasions, when you add High cholesterol to the mix high LDL or HDL again my opinion makes no difference the cholesterol moves to the damaged areas and repairs them, the higher your cholesterol levels the more cholesterol deposited into your veins and arteries. I would not recommend anyone Heat olive oil / cook with it, again just my opinion.
    : )Tyler

  14. fire7side

    The guy was just eating too much olive oil. Short term results like that are pretty useless. It's just a plant fat. You need a certain amount. Too much is unhealthy. Plant oils can be bad because they are condensed.
    I eat olive oil every day and have normal blood pressure. I'm 67. It amounts to less than a tablespoon. If you notice, these guys used to tell people not eat nuts and avacodo's also, but long term results show that those things are healthy in the diet if not overdone, and not getting enough fat can be unhealthy.
    "In the first study to separately examine types of MUFA sources in relation to heart disease, researchers found that while MUFAs from plant-based foods such as olive oil and nuts do indeed lower risk, MUFAs from animal products such as red meats and dairy do not provide benefits."
    https://www.hsph.harvard.edu/news/features/monosaturated-fat-heart-disease-risk/
    80-10-10 will eventually be abandoned when enough evidence comes to light. That's just not enough fat or protein either one and doesn't lower risk in a beneficial way. People abandon it because they know they are missing something.
    Sure, nuts are better, but can you use a half teaspoon of olive oil on your cast iron frying pan for a stir fry. Of course you can. You don't have to be a nutjob about it.

  15. Logoguy7

    Come on! If you sprinkle a tiny bit on food, it's not going to kill you. Maybe you add a tiny amount in a pan just stop food from sticking. Yeah, if you consume olive oil with every meal, that's not going to be good for you — obviously.

  16. Dr.Lakshminarayana shenoy

    These Five vegan doctors are doing a great disservice to humanity by their own preconcieved, outdated ideas of nutrition, disregarding all scientific evidence since 2007.

  17. ampoules1

    Don't vegan doctors claim that only saturated animal fat causes heart disease, and didn't Dr. Gregor in one of his vids say that a study showed that extra virgin olive oil had a neutral effect on arterial function?

  18. Vegan Walk

    I like the video but the science was kind of like, why not have a control group that just ate the bread? I want to see better research on this. Don't get me wrong I believe the results are accurate I just want to see better science. I'm all about no SOS but it's hard as hell to convince others

  19. Jaded K

    All the doctors cited in the video are from the States. Yes, the very country whose people are morbidly obese and suffer a lot more heart diseases than any other country in the world. Look at all the junk/processed foods they devour. And these vegan doctors slam olive oil? LOL. Talk about priority.

    If olive oil is so bad, why would most doctors in the world recommend having the olive oil? Are most doctors in the world are just dumbass motherfuckers and these several vegan doctors are somehow more knowledgeable than most doctors in the world??

    People in Italy and Spain consume at least 10 times more olive oil than Americans, but they live a lot longer than Americans, and they have a lot less heart problems than Americans, and their elders are a lot healthier than American counterparts. All because of the dread olive oil! Especially, those extra virgin ones will make your heart stop. LOL

  20. Shardha s.p

    Tnk god you did a video on the topic on oils, many people just don’t believe you when you tell them no oils are not healthy whatsoever. Until it is documented by professionals like your self that have all the facts. Love always.

  21. Ruby G Edwards

    Fat is oily and oil is fat. So oil and fat = overweight or obesity. It's a no brainer really. I don't even think one has to be a doctor to figure this one out. Because what we eat creates the shape of our bodies in and out. So NO to fats and oils. Only in very minimal quantities when really necessary.

  22. babyelian77

    I have no doubts about those studies, but 50 grams per meal is a HUGE amount, I personally still use some EVO oil (only 2 teaspoons not TBS per day), but not 50 g not even in a week !

  23. Rafe Bundy

    I feel this is a cherry-picked video and extremely unrepresentative of the wider-evidence base.

    First, the study by Vogel was a small acute study measuring solely vascular function through flow-mediated dilation in just 10 people. It appears the meals were 50g of fat in 900kcal which I'd also say is untypical. Also, the physiological basis for Olive Oil (and the Med Diet in general) to be protective against CVD is not solely based on NO production (which affect vasodilation), but also on it's lipid lowering, anti-oxidant and anti-inflammatory effects, along with reduced platelet aggregation (for an up-to-date review see https://academic.oup.com/biomedgerontology/article/73/3/318/473630).

    The study by Berenice Cortes et al was also a small acute study showing similar effects. Again, the test meals were extremely fatty (63% energy as fat) which again I'd say in unrepresentative. Again, not mentioned in the video, the authors concluded that although FMD was lower acutely in the Olive Oil group, "both walnuts and olive oil preserve the protective phenotype of endothelial cells."

    As for the animal studies – they are notoriously unrepresentative of what happens in humans in the real world.

    To me this is a simple case of observing an acute effect of an untypically high fat meal in 2 very small studies and extrapolating those data to say olive oil is 'bad' for you (see Lisa K's comment below). This is Bad Science. What strikes me is the authors of this video don't mention the overwhelming epidemiological evidence on the positive effects of Med Diet, including high olive oil, on lower rates of CVD (starting with the observations by Ancel Keys as far back as the 1950's that a Greek Cohort who consumed a diet of 35-40% energy from fat, almost exclusively from olive oil, had a near 10-FOLD lowered incidence of CV events compared with a Finnish cohort; see https://academic.oup.com/ajcn/article-abstract/61/6/1346S/4651215?redirectedFrom=fulltext for one account).

    But even more amazing is the omission of the PREDIMED study, probably the largest human intervention study of the effects of the Med Diet on CVD. Over 7000 Spanish men and women studied over nearly 5 years, where both active groups had their typical Med diet supplemented with either 50g extra virgin olive oil OR nuts (mainly tree nuts). BOTH groups showed on average a 30% reduction in CV event risk. If we look specifically in the Olive Oil group: "Participants in the highest energy-adjusted tertile of baseline total olive oil and extra-virgin olive oil consumption had 35% and 39% cardiovascular disease risk reduction, respectively, compared to the reference. Higher baseline total olive oil consumption was associated with 48% reduced risk of cardiovascular mortality. For each 10 g/d increase in extra-virgin olive oil consumption, cardiovascular disease and mortality risk decreased by 10% and 7%, respectively".

    In fact, the weight of evidence from PREDIMED as well as the Lyon Heart Disease Study before it, and all the epidemiological evidence, is so consistent that it has informed many other studies including our own at the University of East Anglia, where we are studying the effects of Med Diet on cognitive function and dementia (which share similar a pathophysiology to CVD) in older adults. This is beingfunded by Alzheimer's Research UK.

    Mentioning two experimental acute studies using meals with unrepresentative olive oil compositions to look at the ACUTE effect of ONE marker of vascular function in less than 35 people… and not mentioning the wealth of epidemiological evidence since the 1950's AND a very large Randomized Controlled Intervention Trial involving more than 7000 adults over 5 years using real-world diets? Very disappointing and misleading.

    Dr Rafe Bundy

  24. The DJ

    The vegans that don't consider their processed food intake are the ones that those studies will be made on in the future "VEGANS STILL DIE FROM HEART DISEASE?!?!!?". Also people forget heart disease is still the biggest vegan killer.

    Well, why do you think that is? oil is processed garbage, get that through your heads people. Also look into sludge blood.

  25. curious

    This not true. According to more recent studies, olive oil does not seem to be harmful again!
    https://www.ncbi.nlm.nih.gov/pubmed/29708409
    https://www.ncbi.nlm.nih.gov/pubmed/29420053

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