Why Sugar Is Problematic for Metabolic Health | Dr. Robert Lustig Ultimate Guide

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Levels Advisor Robert Lustig, MD, explains why added sugar, especially fructose, is harmful.
There are 262 names for sugar, and the food industry uses all of them, which makes eliminating added sugar from your diet tricky.
What you need to know about fructose:
Fructose stimulates the reward center in the brain, making it highly addictive.
Fructose and alcohol are metabolized in the same way.
Fructose and alcohol both may lead to Alzheimer’s disease.
Fructose inhibits mitochondria, the powerhouse of cells, from doing their work well.
Fructose does not show up via continuous glucose monitoring (CGM).
There is no biological reaction in any vertebrate organism that requires dietary fructose.
✅ What you can do:
Avoid added sugars as much as possible.
The occasional dessert is not harmful, nor is fruit.
However, many people are consuming too much added fructose meal after meal.
#metabolichealth #fructose #addedsugar #alzheimers
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[@katnez]

This should be illegal. People need to be held accountable and go to jail for literally killing people if they’re hiding it in other names and it’s not visible that is pretty messed up for health conscious people that read labels, but they don’t know what the heck they’re reading that’s why we shouldn’t eat things in boxes and packages. Thank you for this information.❤

[@Jubahe]

Nah, if they follow your train of thought, all u.s. markets would crash Instantaneously! Because nothing there is meant for the betterment of humanity as a whole. Amerkkk is one continuous lie and the longest running horror movie in the history of movies. And it is starring the u.s. populate, written, executively produced, written, and directed by the UN~united states government.

[@islandbreeze2102]

I love you Dr Robert Lustig!! Thank you for helping us understand the trap that we are in and for showing us the way out. Thank you for standing up against the “processed foods giants “ for a better future for mankind!!

[@adelepartridge9484]

You are a true Dr. You care so much about your fellow humans. You devote your life to educating people and Dr's. What do you say to someone like you. Thank you you are the purest of souls.

[@junglemandude]

The gentleman is good at explaining difficult things, thanks a bunch

[@ZackVegas]

Too bad he's not good at explaining them correctly.

[@johnharolds1929]

I just stumbled on to your channel and my, every minute was very well worth it. Just subscribed and shared. Many thanks for putting this out for all.

[@panamafred1]

Twenty-seven months ago, I jettisoned ALL forms of sugar, including fruit, from my life. I eat zero carbs, zero plant matter, zero seed oils (canola, soy, corn, & etc.), zero fiber. I eat the Carnivore way, 100 percent animal products. I'm 76 and am now experiencing excellent health for the first time in my life. I've reversed T2 diabetes, high blood pressure, brain fog, lost 45-pounds, and on and on. Even my 45-year multiple chemical sensitivity issue has completely gone away. I attribute all of this to healing my leaky gut caused by inflammatory foods. I'll never go back to eating ANY form of highly addictive sugars.

[@kdub6593]

Great! When I eat a very high protein diet to thin down, after 2 months all I can think about is oatmeal.

[@panamafred1]

@@kdub6593 The definition of the Carnivore diet, according to Bart Kay, is 70 percent meat based. Just watch out for the oxalates and other plant toxins.

[@originalmusician1098]

That's amazing! Where did you get the information to try your new diet?

[@panamafred1]

@@originalmusician1098 KZbin. Ken D Berry MD, Anthony Chaffee MD, Shawn Baker MD, Nutrition With Judy, Steak And Butter Gal for starters.

[@LowCarbLowDrama]

Very well done. Meat is healthy for humans. Hence, they demonized it to sell Big Food products that are basically made of three main ingredients: plant sugars, plant carbohydrates, and plant seed oils. Basically, it's plant-based junk food, now called UPF.

[@danpost4755]

While I agree with much of what is said here, there is a lot of deeper information on sugars freely and easily available. There are essential fatty acids and amino acids. There are NO essential carbohydrates. Side note: Please don't fall into the "net carb" trap. Thank you for the info you shared, Dr Lustig.

[@Aimercesttous]

Can we eat fruits as apples, pears, cherries as desert?

[@MarieBra]

Use old sorts. Most fruits like apples from nowadays are way too sweet. Just compare an old apple sort with a new one and you’ll discover the new one is far too sweet.

[@abdelrhimhagag8835]

Doctor Robert thank you so much

[@annarenner1165]

Hilarious summary right at the end 😂 "Bottom line, if you want dessert, have dessert. Just don't have dessert for breakfast, lunch, dinner and snacks. 😂

[@janetmcg3086]

When the ‘nutrition information’ on the side of a package states the amount of sugar added, or states ‘no added sugar’, does the word ‘sugar’ refer to any of the 262 forms of sugars or does it only refer to what is commonly known as ‘table sugar’?

[@jumpercable20]

Yes, sugar is sugar, no matter how many names you give it. It's why over 60 % of Americans are Obese and diabetic.

[@ireneb3433]

BEWARE! .. even the term 'no added sugar' can be misleading ... if you take an only slightly sweet fruit juice and evaporate off most of the water (that is, if you concentrate it) it can become incredibly, overly, sickly sweet ... DESPITE NO SUGARS HAVING BEEN ADDED!

[@enyceofnyc]

I have exactly this question.

[@jumpercable20]

@janetmcg3086 yes, sugar is sugar all 262 ways, just different names.

[@Toni-po4hq]

I go by the number of carbs per serving when reading labels. If it’s too high I don’t buy it.

[@sangeetakopalkar09]

Do you mean we shouldn’t eat fruits?

[@georgevadnais3516]

I Cook everything, Nevermind the type of sugar.

[@DonCE0]

is the reason cgm does not measure fructose because the body uses glucose as the most preferred source of energy?

[@bradleycampbell519]

What about fructose in fruit , like apple's , is fruit ok to consume

[@ianstuart5660]

Only in very small amounts!

[@joel6427]

According to Dr. Lustig, the difference is that the fruit contains both insoluble and soluble fiber, which prevents the fructose from being absorbed quickly and delivered to the liver, causing fatty liver and a host of other metabolic diseases. In my opinion, fiber is the most important supplement.

[@gordonwells1626]

Thanks Dr Lustig…very important information for a high percentage obese and metabolically unhealthy population.

[@mreudeco]

@@joel6427yes as long as you don’t have too much of it

[@bungkusi2432]

What about the "fake sugar" The sugar for diabetics patient Is it good?

[@vondapatton553]

Fake man made sugars were. Not made for the body.

[@MarieBra]

No not really. Stevia eg. is as worse as sugar as far as I know. It’s ok to eat sugar from time to time but not in mass. Which is hard because sugar is in a lot of things. Best is to make your own food. Start baking your own bread, cookies and cakes again. Stop buying fast food and start cooking. Will solve some of the problems. Also stop using your car for everything and walk or bike if possible.

[@Alabastergirl]

Why does he not say fruit if fructose?

[@CyberWeaponTime]

Fruits comes with Fiber (Not blended juices) in it... That's why!!!

[@Amaraticando]

@@CyberWeaponTime so what? Fiber is shit, quite literally.

[@CyberWeaponTime]

@@Amaraticando Hmmm,

[@MK-qr3fg]

@@Amaraticandofiber is critical for your gut health

[@Amaraticando]

@@MK-qr3fg depends on the person. It's not critical, because many people thrive without it. And babies don't get to eat that crap upon breast-feeding, as well as some fiber avoiders that don't have any problem because of that. Fiber is known to cause constipation in some people too.

[@uuzoo]

THis why eating whole foods is so important. Keep it simple.

[@Amaraticando]

Since when are fruit and honey not "whole"?

[@ClassicJukeboxBand]

Lustig and Richard Johnson should both try carnivore...

[@ireneb3433]

why's that?

[@Twin_solo_az]

Driving me crazy how he pronounces the U in fructose differently than the U in sucrose or glucose.

[@missyasche881]

I thought fructose was the sugar found in fruit.

[@MarieBra]

It’s also in some vegetables. Like tomatoes. I have Fructose intolerance and can’t eat much of them. Also red and yellow bell peppers.

[@missyasche881]

@@MarieBra tomatoes are a fruit 😊

[@MarieBra]

@@missyasche881 yeah I know. But here in Germany they are in the vegetable section in supermarkets and avocados in the fruit section😂.

[@dp-ux8vi]

​@@MarieBratomatoes and peppers are fruits

[@MarieBra]

@@dp-ux8vi interesting. That’s why I can’t eat too many of them. Always thought peppers are veggies. I can eat green peppers and sometimes pointed peppers if it’s an old sort.

[@polibm6510]

We don't need glucose at all...

[@ricmrodrigues]

If you want dessert, eat another steak, you're not done with your email 😂

[@bengthyytiainen7030]

Cut the carbs !

[@ZackVegas]

Fructose and alcohol aren't metabolized the same way, nor do they "do the same things." Fructose is never broken down into acetaldehyde, for example. If Lustig can't even get basic biology correct, doesn't this make every other claim he utters highly suspicious?

[@cuisined]

Ahh, Good morning Honey, what's for desert?

[@jonahbert111]

I like all these targeted and short videos. Genius. But loading them all at once is a stroke of pure stupidity. Meter them out, one or 2 a day, not in one indigestible blob. I suppose you can still do this by reissuing them.

[@ireneb3433]

there are some of us (well, I'm actually only speaking for myself here) who actually appreciate the 'one [to me .. highly] digestible blob' of information!

[@notjustforme]

It's great when someone is living what they preach. At 67 yo, so lean and healthy-looking. Oh, wait. He looks obese and way too old for not even 70. Not even perfectly educated doctors are able to adhere to a good diet, it seems. How can we expect the brainwashed and uneducated masses to get it? Hell, half the doctors I know are overweight. Sad. Dr Lustig is one of my favorites, but he seems to be declining. I'm worried.

[@ClassicJukeboxBand]

Lustig believes we need fiber in our diet for health. I really respect him, but he seems to believe in a lot of other dietary dogma pushed by the establishment, like saturated fat causing heart disease. Lustig needs to go on a carnivore diet and quit eating all that fiber...he would drop that extra 50 lbs in no time...

[@ireneb3433]

I'm guessing he wasn't born knowing and practicing what he is now preaching ... so the decades preceding his preaching may have left an indelible effect on how much damage can be avoided, not necessarily 'reversed'

[@notjustforme]

@@ireneb3433 That wouldn't explain the overweight part. That can be reversed at any time. A+ for knowledge. D- for being a role-model. :) I suppose all he wanted was to be knowledgeable. Not a role-model. Which is fine, I guess. Just sad.

[@ireneb3433]

@@notjustforme for me - personally - I'm choosing to be my own role-model, along with choosing what he DOES offer that is positive and so wonderfully helpful to me, rather than what he doesn't 🙂

[@anir8023]

This doctor doesn’t look healthy at all . Don’t blame sugar for what seed oils did

[@kkohs4410]

it's both, and it's sad that only a small percentage of doctors find out about that what they've been taught is wrong all along. Most interviews I see of doctors who go out of the norm to debunk what is viewed as "common sense" are all old... sadder that the entire country is led astray and deceived in plain sight by the food industry!

[@youtubeis...]

What a bunch of nonsense. He Just skips the logic of eating the entire fruit is like a kit to break down the fructose properly. Its called evolution by you guys.

[@kkohs4410]

nah, you need to watch his other interviews that are like 1 hr long. I think this one is just snippets taken out from other videos. He did talk about how eating fruit with fructose is ok because it's got fibre to deter you from eating 20 oranges. This is why fruit juice is bad as there's nothing to stop you from overdosing