Dr. Zoë Harcombe - 'Should dietary fat guidelines have been introduced?'
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- เผยแพร่เมื่อ 10 มี.ค. 2017
- Zoë Harcombe was the first pupil from her school to graduate from Cambridge University. While studying maths and economics at this historic institution, Zoë set out to answer the million dollar question - "Why do you overeat? When all you want is to be slim?" This became the title of Zoë's first book - published in 2004.
"Stop Counting Calories & Start Losing Weight" followed in 2008, with an accompanying recipe book and "The Obesity Epidemic: What caused it? How can we stop it?" which was published in October 2010. "The Harcombe Diet for Men" (2011) gave men the super quick read they were after and then two more books were published in 2013 - a collaboration with Hodder & Stoughton: "The 3-Step Plan" and a completely revised "Why do you overeat?"
Zoë has a PhD in public health nutrition. She struggles to find anything that is being taught in 'conventional' nutritional worlds that is true or evidence based. Hence why she spent 2008-10 writing The Obesity Epidemic - 135,000 words blowing apart: the misapplication of thermodynamics to dieting; the notion that 1lb = 3,500 calories, let alone that a deficit of 3,500 calories will lead to a weight loss of 1lb; the Seven Countries Study and the subsequent change in our diet advice, which has caused the obesity epidemic; the role of exercise in obesity and much more.
Zoë lives in the Welsh countryside with her husband, Andy, a rescue dog and a rescue cat. You can download a PDF version of the slides used in this presentation here; www.zoeharcombe.com/lcbreck17/ - วิทยาศาสตร์และเทคโนโลยี
"Speak the truth, even if your voice shakes." Thanks Zoe. I was a teenager when the guidelines came out in the late 70s, and as a result, I had a lot of health problems for over 20 years. Hypoglycaemia, migraines, and the like. After 3 years of LCHF, my migraines have all but disappeared, low blood sugar episodes all gone. We all are getting heathy one voice at a time.
This is exactly why they are tying to keep the barn door closed imagine all the people they would have to admit to harming.
I was present during that talk in Breckenridge. she's astounding! Excellent speaker and scientist.
Lucky you ... wish I was there ...
70 Going On 100
She may be a good speaker...scientist she ain't
@@kevinharris8242Clearly you know nothing about nutrition. Well done for showing your total ignorance. If you're backing vegan doctors let's hear what you have to say about their wonderful testaments of scientist. All they ever say is how good the diet is for you.
Glucose competes with Vitamin C for absorption, so if you have chronically high blood sugar from a grain-based, carb-heavy diet, your absorption rates will be low. Eating healthy without overloading on the carbs allows blood sugar levels to stabilize, and maximizes Vitamin C absorption.
Excellent video and highly informative. It fuels my already burgeoning inspiration for me and my family to continue with our Ketogenic lifestyle towards nutritional ketosis as a way of life.
4 months in and I've lost 25 pounds effortlessly AND blood pressure is down. Triglycerides are way down and HDL is up. Yes, my LDL increased, but this is an indicator of nothing except maybe that my body is utilizing the dietary cholesterol to repair damaged cells.
Nice Jason ... same here (8 mo in, but 30 years of chronic inflammation insult) as trying to eliminate Met-S, chronic inflammation ... but have to ignore what LDL does and focus on getting HDL up to 60+ ... as that is the removal mechanism ... also Lots of Sun ... need Vit D 50-60 range ... I follow Dr. Rhonda Patrick's for Vit D.
LOL 70 Going On 100 ... the Centenarian Diet
Superb talk and insightful analysis, thanks for sharing.
Nice work Dr Harcombe, clarity, and references, ... I am becoming a fan and you are forcing me to buy your books ... Who Knew ... as I need to study your references ...
Thanks for the 278 references listed and the link to your website ... will use those in research ....
70 Going On 100 ... the Centenarian Diet, ... or maybe 70 Going On 128 ... the Hayflick Limit, or if a fan of Ray Kurzweil ... then all this is a Moot Point ...
30:30 'There is no product that is 100% saturated fat.' The public has been led to believe that fats like butter, lard, and other animal fats are nearly or perhaps completely saturated fats.
Great lecture
This illustrates the problem with publications' emphasis on positive results. "No significant difference" can be *significant*.
YES - 'No Significant Difference' between Death by all Causes between diets higher and lower in fat, including saturated f IS *highly significant*!
...and death by CHD...
excellent!
The fact is our ancestors all ate saturated fat and rarely died from heart attack. This all began when we started eating with oils, sugar, factory manufactured foods and cigarettes wouldn't have helped.
Excellent talk!
Your my hero Dr. Gerber ... but my doctor has No Clue (Low Carb) what happens when Inflammation goes away and I get "BP-Collapse Syndrome" (coined term) ... only ref to this is Dr. Noakes and Cummings discussion (Iceland)... no one can explain 70/50 with 5 day recovery ... multiple times ... but weaning myself off meds ... to the complete disdain of my doctor ... but I assume this is normal push back ...
70 Going On 100 ... the Centenarian Diet ... or maybe 70 Going on 128 ... the Hayflick limit ... but I prefer Ray Kurzweil's cloud theory and all this becomes a Moot Point ...
The Jeffry Gerber, M.D.
AWESOME
Don't you just love her?
Please request Dr Zoe to discuss best food 🍲for memory and learning based on research
I note you referenced the 7 country study. Did you consider the other 24 countries for which data was available but ignored by Keys?
That's a common confusion - explained here www.zoeharcombe.com/2017/02/keys-six-countries-graph/
Very comprehensive video and you are a great researcher and presenter! The video shows Breckenridge Feb 2016 at the beginning?...
Wouldnt the title be more grammatically correct if it was written "should have dietary fat guidelines been introduced"? The title sounds a little off to me, any thoughts?
Hi Zoe you are my favourite foodoligist followed closely by Robert Lustig. Robert values fiber but you are very down on it. I’m a little conflicted?
As of this writing, 6 people watching this are on a blood sugar crash and are hangry.
Or their brains are lacking in quality fats. We know the human brains is about 80% fat. Or/therefore they may be having trouble accepting that what they have been told all their lives was a Big Fat Lie.
Or they are hired trolls for Big Food.
Jefferdaughter lots of theories, but the human brain (like a cars engine) prefers glucose for optimal performance, not copious amounts of fat.
What car runs on glucose? Mine runs on gasoline. Or is gasoline now a liquid form of sugar now instead of a liquid mixture of hydrocarbons?
@@lucam2942 good analogy. Put sugar (glucose) in your car's fuel tank. It won't take long to tell you if it is the preferred fuel...
@@TJMRBUCK Ouch!
To autobot below, you have offered to one jot of evidence to back you up. you ask why Keys is so quoted, thats because he alone CHANGED the dietary guidelines. I go on evidence from what I read across a range of sources ad my own experience. You say carbs are essential YES they are but we make them ourselves, no need for the average person to take ay extra res at all. I have bee Keto for 9 months now. No sign of my body breaking down. In fact just did a HIIT session fasted on my bike .... How does that fit in with what you say ?
Right ... have to ignore some as they just TROLL ... and add nothing to discussion ...
FYI ... the is No Known Carbohydrate Deficiency Disease, hence Carbs are Non-Essential ... and as you know most elite athletes are becoming Fat-Adapted and "Carb-Loading" is now De-Bunked ...
Same results here ... using Mercola's tool ... www.cronometer.com and enter everything ... just to provide record for doctors ... and they still think the Cholesterol Theory is alive and well ...
LOL .... 70 Going On 100 ... the Centenarian Diet.
yep Carroll ... whether it is my N=1 experiments or the FASTER study or just look at top endurance athletes it is clear. I the strongest against us ow seem to be Vegans, I wonder why hmmmm
Ian Rob exactly
Nonsense ... prove it as the entire weight training people are going Keto (Ref BodyBuilding.com) ... Eating only plants shows a lack of the understanding of biology, nutrition, and “Nature in General” … As follows …
1.3 Billion years ago the Plant and Animal kingdoms diverged … these 2 kingdoms have “2 completely and opposite Metabolisms” - obvious examples: are “Cholesterol” and fat metabolism (Non-existent in plants) - Using oxygen vs. making oxygen.
The Folly: Thinking that “Only eating Plants” will solve or complete our understanding of “Animal Metabolism” shows a lack of understanding. You forget that “Humans are Animals” and this fact cannot be left out when considering “Nutritional Requirements”.
The Folly: Focusing on the Plant Kingdom and ignoring our own Kingdom …
We have very little in common with plants anymore … If it was not for the intestinal microbiome (Gut bacteria) animals could not use plants at all … modern plants are inherently a poor energy source and a poor source of nutrients without this symbiosis with our gut microbiome. In addition, “Plants” have the same reliance, since without the bacterial symbiosis with their roots, plant do not survive.
Ignorance is “Not Bliss” …
70 Going On 100 … the Centenarian Diet … maybe 70 Going On 128 … the Hayflick Limit, or if a fan of Ray Kurzweil … then this is all a Moot Point.
hence the best diet for humans is Animal and plant, natural foods .... that is my mantra and basically cut out all processed foods. It is a simple diet, it is the diet people eat before modern food and the explosion of cancer, hear attacks etc.
Great talk!! I hope some McDougall zealots watch this!
That lot wouldn't listen.
I'm guessing the 6 downvotes is an indication of people who REALLY know sciency stuff!
You sound like an artist.
Research yourself if you have any doubts about the AHA guidelines. I see more and more doctors coming forward and expressing this same truth. Eventually consensus will be overturned. In the interim, big pharma and big food have made a killing. Good luck to all in regards to your health, no matter what your opinion is.
Hi Jason .. the problem is the size of Big-Pharma .. $1.2 Trillion -2016 world wide ... that is bigger than most GNP's in the world ... that is power ... so this has to come from a well researched public consumer ... TFGU ... Thanks for Google University ... as we can achieve in 2 hours what took 2 days in the "University Stacks" ... remember "Books" ... ?
70 Going On 100 ... the Centenarian Diet ... maybe 70 Going On 128 ... the Hayflick Limit ... or if a Ray Kurzweil fan ... then this is all a Moot Point ...
+Carroll Hoagland the winds of change have begun to blow. Diet is an interesting by product of my own awakening. I got into this to beat psoriatic arthritis by reducing inflammation. Sadly, it hasn't worked, but I've found the proper way to fuel my organism. Now, I'm not necessarily an optimist, and I struggle to remain sanguine when I observe the world around me, but people are waking up. I did abruptly in August of 2015. It wasn't something I wanted, anticipated or processed well. Get my drift? Anyway, love your spunk! 45...I wanna live well, but I've had it with these hu-mans
Our only option is to Learn more that our doctors ... and that is relative easy since most practice "Medicine by Chemistry", and pharmaceuticals are a failed experiment ...
You/We must figure out the Root Causes ...
The Siri-Torino & Chowdhury papers she cites are flawed. She says why would anyone want to replace saturated fats for carbs...well it depends on the carb, something she doesn't distinguish between. The biggest reduction in risk comes from replacing saturated fats with PUFA's. Oh and these have never been shown to be inflammatory to any reasonable extent in humans
Have you changed your oppinion yet? The rest of the world know factory manufactured oils are utterly disgusting. You can't even crape that crap off the stove. There is a difference. Find out for yourself if you have never noticed before.
extraordinary , så interesting , people know nothing and if they know something , they know wrong as the been told of doctors
Wow, so good!!! Vegan trolls beware. :)
Zoe, the international audience are still really hard to convince. They actually think that carbs are wonderful. Look at this list of fearmongers.
hmm that bit about animal fat being "no more saturated than plant fats and vice versa" is highly questionable. seems to be a very dumb statement lol
Palm oil and coconut oil are some of the most saturated fats that exist. Most animal fats are about 50% saturated and the rest mostly mono-unsaturated. The polyunsaturated oils are seed oils. Olive oil is mostly monounsaturated. Hardened plant fats are a major source of saturated fats (and transfats).
Fish are quite low in saturated fat.
It really is a bit all over the place.
You could have mentioned the major difference between yours and cochrane review. Cochrane protocol was preregistered and the primary outcomes decided 15 years ago. Your protocol wasn't pre-registered nor the outcomes decided prior. Also, you have written diet books favoring high fat diets prior to your review. Honestly, these two reasons are enough to question your review and your conclusions.
The lip smacking/hard swallow/sooo hard to listen 😪
Let's play QnA
Q
1. Is a large LCHF or HCLF meal more associated with CVAs and MI's within 2 hours of eating?
2. Is LCHF or HCLF more associated with endothelial dysfunction?
3. When in human history has LCHF provided a longevity advantage?
4. What diet has sustained civilizations longest?
5. Which of the current Blue Zone communities has a LCHF diet?
6. What percentage of the world's population is lactase deficient after weaning from breast milk?
7. Which plants are associated with increased cancer risk?
8. Which animal produce are associated with increased cancer risk?
9. What exactly is the advantage of a LCHF diet?
A
1. LCHF
2. LCHF
3. Never has LCHF provided a longevity advantage.
4. HCLF diets have sustained civilizations longest across multiiple generations, by ensuring food security during droughts and floods.
5. No Blue Zone community eats a LCHF diet.
6. 75% of the world's population is lactase deficient after weaning. So that writes off dairy as a source of fat on a LCHF diet.
7. No plants are associated with increased cancer risk.
8. A higher level of any animal produce is associated with increased risk of one cancer or another.
9. Some people with insulin resistance after years of eating a poor diet and getting obese are more comfortable eating a lot of fat and cutting refined carbs.
@helicart. Massive statements with no references, references are important. Please edit and add them or I call false or vegan religion with no facts As I can see at face value from what I know 4-5 of those are patently false my guess is it is all false or based merely on correlation.
1. the moon is made out of blue cheese (can't prove me wrong, correct).
2. the earth is flat
3. I am a non-earth alien.
4. I vacation on the sun.
Those statements above are as proven as your entire list with out references.
How about you redivert your precious time and energy from schoolboy sarcasm to reading the literature, and prove me wrong.
Zoe Harcombe is not formally educated in the biological sciences, and neither are you, nor has she researched the field for 30+ years. Her presentation is pulp bogan fodder. She has ignored the mountain of science associating dietary fat with cardiovascular disease, and meat and dairy with multiple cancers.....and no I am not a vegan.
Again all i am asking for are your sources for your astounding claims. I do look at evidence (all of it not just on one side), can you provide me with the evidence behind your claims? I am genuinely interested in a couple of your claims as I have never heard anything about them like your Q 1.
Dude, I've read the literature, I've researcehd, and I am a clinician.
My 'claims' are astounding only to unread LCHF zealots.
I didn't pull those questions or answers out of a cloaca, or off some narcissist who thinks she knows better. They come from the literature, as you'd know if you read.....but you obviously don't, which is why you are astounded!!!
I don't care to spoon feed the literature to someone of your ilk. Where would it stop? Recognize your bias, and take a slice of humble pie.....recognize your propensity to be confidence tricked by the likes of someone of Harcombe's demeanor. Just because she is articulate, just because she is witty and pithy, doesn't mean she knows the science. The best scientists I know are extremely poor presenters and wouldn't impress someone as yourself. But they know how to weight each paper they read appropriately. The dilettantes of the world like Harcombe don't. There's over 10,000 studies in this field that she thinks she knows better, after reading what % of them? As far as sceptics go, I've heard better than her, Cordain, Lustig, Sisson, Wolf, Volek, Phinney, Atkins, etc, etc.
Go away and research the questions I asked above. I have sick people to tend. And if you are as smart and committed to the truth as you think you are, you'll stop reading best sellers, and read the literature......that's if you are educated in the biological sciences in the first instance. If not, then don't read the literature.
Ok so you are saying you have no idea, ok thanks. You know what is funny is I made no personal attacks just attacks on your claims and yet you think I am the zealot for poking holes in your unsubstantiated claims.