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Sugar: The Bitter Truth

65119 ratings | 7895688 views
Watch "The Skinny on Obesity" with Dr. Lustig: http://www.uctv.tv/skinny-on-obesity Robert H. Lustig, MD, UCSF Professor of Pediatrics in the Division of Endocrinology, explores the damage caused by sugary foods. He argues that fructose (too much) and fiber (not enough) appear to be cornerstones of the obesity epidemic through their effects on insulin. Series: UCSF Mini Medical School for the Public [7/2009] [Health and Medicine] [Show ID: 16717] More UCTV videos about sugar: http://www.uctv.tv/sugar Dr. Lustig's book (comes out Dec 27, 2012), "Fat Chance: Beating the Odds Against Sugar, Processed Food, Obesity, and Disease": http://www.amazon.com/Fat-Chance-Beating-Against-Processed/dp/159463100X Thank you to Centar dr Gifing for providing the Serbian subtitles for Sugar the Bitter Truth. https://www.youtube.com/channel/UC8cXfUiAey9wzYg3K_eR_zg
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Text Comments (10386)
Mal (5 hours ago)
Great speaker. He should go and open the next big rheumatology conference, and tell the gout specialists to get their act together. They are still pushing a diet where the most recommended foods are cereals without fibre, jam, sugary soft drinks, and sweets!
Robert L (3 days ago)
I think he said "OKAY" 3 million times... Annoying
Christine Bean (5 days ago)
I normally read most all comments before I comment but 10k. What was the 1 bread without sugar? I used to now but I rarely get to read labels let alone shop myself and I am huge in 3 years of it 😲😭
Michael Hinck (6 days ago)
Pure genius ☝🏻
Banke Andersen (7 days ago)
Eleanor Biddle (8 days ago)
...at least this has millions of views---will we all get out of this Matrix stream of thought! Let's do IT!!!
Shannon Leifer (8 days ago)
The speech is brilliant. One small thing, WIC now only approves 100% juice.
saphexteni (12 days ago)
I may just be missing a really simple concept, but having a tough time understanding his comment on how "No C, no A" at around 30:55. Can someone explain, in as simple terms as possible, how this is?
Isuckatnames60 (13 days ago)
I don't have that much time. anyone hane a tl;dr?
FrankEdavidson (18 days ago)
Overweight but minimal sugar and no glucose-fructose syrup consumption here. It's potato crisps and umami that does it for me.
vgernyc (22 days ago)
Could fructose be the true cause of Autism?
Hans Schnäbele (22 days ago)
Really true - no change after all this years
Manny Radzky (23 days ago)
EXCELLENT VIDEO. Thank you Dr. Lustig
Benjamin Liang (23 days ago)
I wish this would go live on every single tv or device to tell about sugar.
Everytime he says “ok” i am eating one piece of chocolate.
George Popescu (25 days ago)
And remember, he didn't even talked about the effects of sugar exposed to high temperatures. The only thing more toxin than sugar is burned sugar.
lhance medina (26 days ago)
Very impressive!
Anna Warner (27 days ago)
American companies (Coca cola, Kellogg, Pepsi etc) are destroying health of American public. They should be penalized for growth of diabetes, heart attacks etc.
David Ashenbrener (28 days ago)
Keep the rude comments where they belong...Facebook...
drewpamon (1 month ago)
I'm not convinced that carbohydrates in any form is much better than sugar
Sebastian Negele (1 month ago)
Wow powerful stuff, makes you look at food in a completely different light. Despite the complexity of the metabolic process that is discribed in the lecture, they did a great job in breaking it down and making it understandable for everyone. I will definetly take a closer look at what i buy in the stores from now on and i think one of the key messages is to make a effort to introduce more fiber to your diet. Fiber meight be the thing that makes limited fructose consumption acceptable, because i regard it as pretty much impossible to completely avoid consuming fructose, since it's in pretty much everything.
Ingala Sacha (1 month ago)
What both the atkins diet and the japanese diet have in common ? They both don't require their members to take dicks in their butts
simon perkins (1 month ago)
It's ridiculous to demonise sugar. We never had such high rates of obesity in the past. But, as kids, we used to go out to play. We didn't just sit on our arses, on facebook, &twitter, & instagram & snapchat & whatever the hell else banal, so called social media. Or just playing computer & console games. I am 6 feet tall & weigh just over 70 kilos. I was 60 kilos until a year or so ago. (I'm aged 55). I NEVER drink water. It just makes your mouth like blotting paper. I drink 5-8 cups of coffee a day. Each has at least 4 heaped teaspoons of sugar in. Apart from that, I only drink sodas, all full fat. Mostly regular coke. I put sugar on all sweet things. Frosties. In premade, already sweetened custard. I also eat bags of sweets, candy in American language. I'm not overweight. The above has been my diet, all through my adult life. I don't have diabetes, or heart disease. Why should my diet have to change, because a bunch of lazy, fat kids won't get off their arses and actually do some real living. Not the virtual bullshit they are all addicted to?
styace (1 month ago)
Peppermint (1 month ago)
Suhasini M (1 month ago)
So which drink do you recommend to rehydrate on a hot day? ORS? plain water?
Solaris 32 (1 month ago)
Water with unrefined salt and some potassium. 1 teaspoon of each in a 2 liter bottle. If you aren't fasting that day you can lower the amounts a little.
jberda_95 (1 month ago)
nice double chin
Solaris 32 (1 month ago)
He may be overweight, but that doesn't change the science.
junipa (1 month ago)
More than two THOUSAND people 'disliked' this video?!? What is the matter with you people?
junipa (1 month ago)
Solaris 32 Sure is.
Solaris 32 (1 month ago)
Sugar is a hell of a drug.
Tammi Cottingham (1 month ago)
why would something as natural and health giving as fruit contain poison? I'm confused by that part...
Fontari (16 days ago)
You did not listen (or you missed it). Fruit itself as a whole contains fiber which counteracts any negatives effect of fructose.
Solaris 32 (1 month ago)
What part? He never said fruit was bad. Fruit is ok because it has fiber which protects against the harmful effects of fructose. Fruit juice is bad because they remove the fiber.
Alan Joseph (1 month ago)
Brilliant lecture....very motivational and how to live a long quality life free of disease
suckit ee (1 month ago)
teacher told the whole class to watch this boring ass shit and make a reflection paper out of it.
Solaris 32 (1 month ago)
The voice of the modern youth.
David Jackson Jr (1 month ago)
I'd like to see something this in depth for all sugar substitutes.
Solaris 32 (1 month ago)
He's mentioned wanting to do it in later videos, but he said he can't because there currently isn't much data on it, and he will only talk about it if he has the data to back up his words.
overlandflyer (1 month ago)
don't bother to go to sweetsurprise.com... i guess the industry saw this coming and deleted the site. i tried to stop eating sugar about 2 months ago... had to settle on <8-10 gm/ day or i think i would starve. 95% of everything in the store i go to has added sugar. by the way, since i started... without changing how much i exercise, i've not only dropped 7 lbs (starting BMI at about the center of overweight), but i find i am not hungry most of the day. i now have a light breakfast and eat one more time around 4pm. btw, the mentioned book Pure, White and Deadly is online (pdf), just Google it.
Solaris 32 (1 month ago)
Look up the Snake Diet here on youtube.
Dr. Sam's Health (1 month ago)
15:12 presenting results of meta-analyses (yes, plural) and mentioning "statistically significant associations" - these are extremely low correlation coefficients, realistically contributing to 3-4% of the overall effect. Plus, including cross-sectional studies is not a good idea at all - you cannot conclude whether obese people tend to drink more pop or those who drink more pop tend to be obese. PS. I'm totally pro keto, just pointing out that this kind of "science" is doing more harm than good.
ick don (1 month ago)
I’m not giving up on my pop-tarts.
Solaris 32 (1 month ago)
Enjoy fatty organs I guess. I see that shit as poison. I mean if you're eating a poptart every once in awhile, like once a week at most that's probably fine.
Ankit Agrawal (1 month ago)
As a personal trainer, this is the video I show to all my clients in the 1st meeting.
Solaris 32 (1 month ago)
You're already a step ahead of most of them. Check out the Snake Diet here on Youtube to really step up your game.
Prashant Kumar (1 month ago)
Dr is their any book which contains all the contents of your speech ,I want to translate the same in Indian language Hindi, And publish the same for the benefit of indian population
Solaris 32 (1 month ago)
He wrote a book called "Fat Chance" which covers pretty much everything in this video plus more.
Prashant Kumar (1 month ago)
Thank you Dr for the best ever presentation , every word is true,I am from India ,diabetes capital of the world, I don’t know how we are going to control this epidemic,Govt and people are totally ignorant about sugar poisoning of The entire Indian population,we are consuming most toxic recipes in our daily diets. Again thx
Hsingai Altaica (1 month ago)
I was a hard core denier. You convinced me
theonlyredspecial (1 month ago)
Fantastic video I recommend everyone reads the primal blueprint by mark sisson it changed my life
Solaris 32 (1 month ago)
Full carnivore isn't the way to go. You still need at least a small amount of plants for hormesis and gut microbiome diversity. Check out the Snake Diet here on youtube.
I'm sorry About that! (1 month ago)
sugar is part of the problem... Grains and caffeine are another issue you need to address but once all 3 are out of your diet you feel GOLDEN
Solaris 32 (1 month ago)
Fully agreed. Unfortunately Lustig here is addicted to caffeine and even admits it.
David Vota (1 month ago)
What year was this video made
Dominick Hodges (1 month ago)
Watching this high is very very interesting
jette wolter (1 month ago)
Jeg elsker fløde boller og spiser en hel kasse og jeg er total skadet
Jonboy I (2 months ago)
I don’t eat or drink anything. I just utilize the Sun’s energy and the Oxygen I breathe😏
Solaris 32 (1 month ago)
It's called dry fasting. My record is 5 days.
Mohammad Huzaifa (2 months ago)
Fast Food = Fiberless Foods
Solaris 32 (1 month ago)
Fast food is literally the worst food you can eat. I feel dirty just being in the car when the driver goes in the drive-thru.
Kalynn (2 months ago)
Still watching nine years later. This video has such amazing information.
Ava Grego (2 months ago)
Wow! Thank you.
Sasha Stone (2 months ago)
Great lecture, but please stop calling everything and everyone "guy". When females have to hear everything male-genderized, we are psychologically left at disadvantage because femaleness is left out of the life question altogether. Neutrality is preferred. People think this is unimportant, but it creates consciousness, which creates the world we live in, which is a male-created hellhole at the moment. It matters. Also I do not expect to hear "God/He" referred to in a science talk. No "god" made anything.
Crowns (1 month ago)
so much bitterness and anger
Solaris 32 (1 month ago)
Man you need to relax bro.
MAK-11 (2 months ago)
Great video. Very informative & actually held my attention. I even wrote down some notes. Thanks for the knowledge, definitely going to apply it
Melody Marshall (2 months ago)
This is not epically new, however it is science based, and I for one, have been on low carb, diet, and my blood sugars are finally in the normal range after ridding my diet of sugar, and un healthy carbs.
Very, very impressive and compelling talk. Thank you!
Sonia Burrows (2 months ago)
The more it is touched (processed) by man, the worse it is for you.
Solaris 32 (1 month ago)
ironstevie (2 months ago)
His constant "ok" gives me tingles! Serendipitous ASMR is the best ASMR!
I’ve been on keto for 5 weeks and have dropped 20 lbs. The proof is in the (sugar-free) pudding.
Marcia Irving (2 months ago)
thubs up i could listen u for a whole day,truth,nothing but the truth.
Mr Orm (2 months ago)
You may well have saved my life. Been responsible of lengthening the lives of my friends, family and children. In a few years, hopefully we’ll be looking back on this video with the same bemused expression we have when looking at past anti-smoking videos.
Tranel Hawkins (2 months ago)
Stop eating sugar 10 months ago, and lost 22 pounds. I do not count calories, and I am not compelled to eat snacks.
Solaris 32 (1 month ago)
22 pounds in 10 months ain't bad. What if I said you could do 22 pounds in 1 month? Check out the Snake Diet here on youtube!
Sebastián Najmanovich (2 months ago)
Amazing! Excellent book!!
Recco Con (2 months ago)
Very revealing detail -am taking notes. I'm going for the non- agave(it's questionable), natural, non-insulin provoking, non-glysemic inducing basic natural sweeteners like: steve-via, maple syrup, honey etc.
Solaris 32 (1 month ago)
Um maple syrup, agave, honey, and even stevia spike your insulin. The first 3 are practically pure sugar. Just get rid of all that stuff and learn to enjoy natural whole foods like fruit. If you want something sweetened crush some grapes or a chunk of watermelon, and mix the whole thing in, fiber and all.
Ameelia K (2 months ago)
I quit sugar six months ago, and I've just had my fourth menstruation without cramps. And this after 25 years of cramps and pain. I wish someone would have told me 25 years ago.
Travis Fisher (2 months ago)
I watched this while eating McDonalds
Garfield Thomas (24 days ago)
....or while craving it.
CauseAndEffect (2 months ago)
Thank God we are free to write 'God' and don't have to write God as G-d.
Lenard Hill (2 months ago)
Think what you will , he's tell the truth. Took my getting sick and almost going blind. Went from 255 lbs to 183 and I;am 6.11/2.
Solaris 32 (1 month ago)
Check out the Snake Diet on youtube for the best free results of your life!
Julian Scheer (3 months ago)
This guy is the hero we dont deserve...
nehopsa (3 months ago)
Bloody murder and treason, genocide and infanticide perpetrated by America against its own population en masse for decades and exported as acts of terrorism all over the world. That is what the responsible need to answer for in a Nuremberg like trial. ALL IS POISONED.
Christine Cole (3 months ago)
I am so grateful for Dr. Lustig going into the detail and depth he has here in this talk. We only have one body and I intend to take care of it, regardless of the push to consume unhealthy, adulterated foods.
Stacy Seecharan (3 months ago)
Wow thanks for posting UCTV, this brings back memory of 'DIETING MAKES YOU FAT' from the 1980's written by a journalist. Politics of food marketing was all there just like this, which was about WHITE SUGAR.
ZMan1471 (3 months ago)
Its understood you're against processed foods and high sugar diets so how do you propose we change it? Foods outside of that circle are extremely expensive and not bountiful. My grocery stores only offer 5 all natural aisles (including produce) and the other 17+ are a combination of gmo, processed, and frozen slop that sells for a dime a dozen
Solaris 32 (1 month ago)
Yea if you're poor like me then don't worry about organic plants or pastured animals. The most important thing for health is a fasting focused lifestyle. Check out the Snake Diet on youtube.
Olivia esddms (2 months ago)
So buy the GMO vegetables, geez. I'd go bankrupt on organic.
Jess Stoner (3 months ago)
7 deadly sins vs. intuition best intentions
Baha Queen (3 months ago)
Louis Philip 9 (3 months ago)
The point is that the whole system is corrupted to the core with all powerful corporations giving us the cheapest most profitable crap they can legally get away with so they can get suitable returns for the shareholders with no regards to the adverse effects !
James Town (3 months ago)
Thank You Robert Lustig! I will ban sugar from my diet.
mulattotvc15 (3 months ago)
One thing he doesn't mention is if you cut sugar liquids from your diet you minimise your mouth plaque. This has huge implications for your teeth & general oesophagal health.
Solaris 32 (1 month ago)
If you want amazing teeth check out my comment that is highlighted (ignore the video): https://www.youtube.com/watch?v=S83_h96L2z0&lc=UgzhoyfoY4fX8SGiJkB4AaABAg
Olivia esddms (2 months ago)
Yes! Other than being overall healthy, my teeth are in amazingly good shape- so much so my dentist recommended I can get annual checkups instead of every six months they set for other patients.
ConBrioLady (3 months ago)
N The One (3 months ago)
"Now we have to get our kids to drink milk anyways somehow" That's frustrating. That someone would say that. It's just not true. People don't require milk at all. The only important thing about milk is the things we add to it like vitamins and stuff. But the milk on its own is harmful and useless. It's just sad that our society still believes to this day that milk is necessary or important. It's really not.
schmoborama (3 months ago)
truth. too many people still believe all that marketing crap from the 50's.
N The One (3 months ago)
I have a big issue with the diagrams of the liver. What's that cell at the bottom, where he shows the TCA cycle happening? Doesn't the TCA cycle happen in every other cell too? Why does Acyl-CoA only fuck up when it's made from alcohol and not when it's made from glucose? I have other questions too, but those ones are the most frustrating to me right now. He should have made that stuff way clearer. I get the his audience is knowledgeable doctors and stuff, but I'm not, and I'm really trying to understand while also doing my best to avoid getting tricked into well-covered lies just because I don't understand metabolization of carbohydrates.
John Doe (3 months ago)
even here, the associated add is from a criminal
John Doe (3 months ago)
the add tells us all. criminals
LB030377 (3 months ago)
I'm straight up afraid of watching this. I don't want to find myself obligated to give up 50% of my favorite foods. Dammit why did this show up on my reccomended.
Solaris 32 (1 month ago)
I used to adore grape juice. But after learning about the literal poison of fructose I gave it up, and I've been happier and healthier ever since. Also gave up the other processed foods too. You can still have rare cheat days though.
schmoborama (3 months ago)
Hate to tell ya but heroin is an addict's "favorite" food too - you're addicted to sugar -
Craig T (3 months ago)
Leptin could be part of it. some ppl eat out of boredom or worry. some are just greedy.
Dexter Johnson (3 months ago)
I cut sugar and processed carbs, no cravings, plenty of energy and dropped 5 pounds a week. Its been three weeks. The first two weeks was a little rough. Sugar detoxification. I feel great. Cut my insulin in half.
John Daugherty (3 months ago)
I stopped watching this when he said "ain't". Killed all credence he thought he had.
Solaris 32 (1 month ago)
You really are highly ignorant. "Whatever that means?" Lol it's called sarcasm you mongoloid. Since you're so easy to manipulate as you just proved once again, I'm going to have sympathy and let you carry on in your ignorant way.
John Daugherty (1 month ago)
"Impeccable grammar." Your second phrase lacks a subject and is not a complete sentence. Sell your supplements, whatever that means, to someone else and buy a grammar book with the profits.
Solaris 32 (1 month ago)
You sound easily manipulated. Interested in buying some expensive supplements I have for sale? I promise I have impeccable grammar.
Alex Nguyen (3 months ago)
Is this also included sugar in fruits ?
schmoborama (3 months ago)
not in whole fruit, there's enough vitamins and fibre to-fructose ratio that they are healthy. But fruit juice strips away a lot of that, and you end up consuming a lot more fructose and no fibre, then that's bad.
deborah bailey (3 months ago)
WOW! This is lengthy, yet life changing!!! God bless you, Dr. Lustig!!!
qwerty qwerty (3 months ago)
so, fructose is always bad and glucose is ok with fiber?
schmoborama (3 months ago)
not "always", but in the amount we eat in the west? hell yea it's bad
Erick Johnson (3 months ago)
Insanity (3 months ago)
Justin Hohn (3 months ago)
Mkay? Mkay? Mkay? Mkay? Love the presentation, even with this annoying quirk.
Anão GP (3 months ago)
keto niggas on fleek
Erick Johnson (3 months ago)
Anão GP translation- African Americans incorporating keto diet are living well.
Brian Kelly (3 months ago)
Look up WHAT I'VE LEARNED it's a great channel
In5aNeGuY (3 months ago)
Less Sugar = more sweet, it might sound strange but your taste gets used to the amount of Sugar, if you eat less less sweet things will taste more sweet, so you profit twice, health wise and sweet taste wise.
Ass Whole (3 months ago)
Yep, you take out sweet processed foods and your taste buds become more sensitive to fruit, fruit tastes absolute amazing when you become more sensitive to it again.
Ann S (3 months ago)
I very much agree with everything he said. I especially liked the biochemistry breakdown of glucose vs fructose. You can really see the effects of eating foods with fructose and how it causes so many chronic diseases. OH, BTW, fructose is in most packaged and fast foods!
kuhataparunks (3 months ago)
Robert lustig!!!!! The king of scientific speaking I love this guy
Ankush Sharma (3 months ago)
Sir may i get your email address please.
Shabanath Ameer (3 months ago)
Ted Lorenzen (3 months ago)
Around 48 min, Notice that the Krebs cycle is now referred to as the TCA cycle. Why de-emphasize Krebs/achievement? Ah, Social Justice at work even in science.
Jeff J (3 months ago)
Holy shit, the FDA is lying to us... again.
CliffHuxtableSweater (3 months ago)
In the description they call this "mini medical school". I just watched all of it...Am I a doctor now?
Erick Johnson (3 months ago)
CliffHuxtableSweater nice tits
Olivia esddms (3 months ago)
"So as far as I'm concerned, in life, you've got two choices; it's either fat or fart." 1:44:14

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