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The Deal with Fat

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Dietary science is complicated-- one day something is good for you and the next it's not. Learn what we DO know about fat chemistry in this episode of SciShow.

Snatoms Kickstarter IS still going on: https://www.kickstarter.com/projects/veritasium/snatoms-the-magnetic-molecular-modeling-kit

Check out SciJoy's complementary video, The Deal with Calories, here: https://www.youtube.com/watch?v=RQcF313iCQE&feature=youtu.be

Where Does Some of that Carbon Go?: https://www.youtube.com/watch?v=C8ialLlcdcw



Hosted by: Hank Green
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Sources:
Trans fats are bad http://www.ncbi.nlm.nih.gov/pubmed/20338284
Fat Nutrition Overview: http://www.health.harvard.edu/staying-healthy/the-truth-about-fats-bad-and-good
Monounsaturated vs Polyunsaturated http://www.ncbi.nlm.nih.gov/pubmed/12544660
Essential Fatty Acids: http://lpi.oregonstate.edu/mic/other-nutrients/essential-fatty-acids
Low fat diets don’t help: http://www.thelancet.com/journals/landia/article/PIIS2213-8587%2815%2900367-8/abstract
Reduction in saturated fat has a small but measurable affect on cardiovascular health: http://www.ncbi.nlm.nih.gov/pubmed/26068959

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Tags :

SciShow science Hank Green Fat Unsaturated Saturated Trans Fat Hydrogenated Fat Molecules Snatoms Essential Compounds Chemistry Health Calories Carbohydrates Protein The Deal with Fat Carbon Bonds Double Polyunsaturated omega-3 omega-6 Coconuts Oil cis trans isomer plaques arteries Healthy What's Healthy Stack

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50 Comments

    Popular Comments:

Hackers_Are_Devs HACKER_DEV . 2018-10-30
can you deliver your speech slowly..you are going too fast to be understood
121 2 . Reply
ganeshrvgk . 2018-10-27
Saturated fat don't even touch each OTHER there transported by a lipoprotein dude this is wrong
121 2 . Reply
Prerna Gupta . 2018-10-21
In crash course, you mentioned that trans fat don't exist though? I'm confused
121 2 . Reply
Princess YuBeace . 2018-10-19
Also, if you don't digest enough fat, you can get constipated really bad. Fat can act like a lubricant for your guts.
121 2 . Reply
soviet guy1 . 2018-10-02
People just don't understand the concept of a balanced diet
121 2 . Reply
soviet guy1 . 2018-10-02
Chewin the fat
121 2 . Reply
bestintheworldmusic . 2018-10-01
Eat from the land we've been given and you can't go far wrong!
121 2 . Reply
Emila Vallée . 2018-09-24
"Well...they'll kill you" Transfat-hazard
121 2 . Reply
Vasil Khachiashvili . 2018-09-21
SLOW DOWN... Too fast, annoyingly fast..
121 2 . Reply
Steampunk Ass Monster . 2018-09-14
I have to physically resist making a joke about cis unsaturated and trans unsaturated fats
121 2 . Reply
kyucifer . 2018-08-24
Very clear. There's so much noise out there and I was getting hopelessly confused. Thank you Hank!
121 2 . Reply
AA Productions . 2018-08-21
But even coconut oil, a saturated fat, is almost liquid at room temperature,
and is certainly liquid when it's in your body, which is about 30 °F hotter.
And so, why would there be any concern of it "stacking" into a solid, to clog any arteries?
121 2 . Reply
James Rogers . 2018-08-13
i for some reason felt very fat while watching this
121 2 . Reply
Karen Shy . 2018-08-11
I guess vegans and/or vegetarians wouldn't be able to receive Omega-3 and/or Omega-6 without supplements, is that right?
121 2 . Reply
Robert Schmitz . 2018-07-29
Ketosis??
121 2 . Reply
mklik4 . 2018-07-26
How about speak a bit slower? Lots of info to take in
121 2 . Reply
Frech Studios . 2018-07-15
My heart skipped a beat when trans fats were mentioned.
121 2 . Reply
Michael Pearson . 2018-06-15
So saturated fats are harmful in your body even when your body isn't room temperature?
121 2 . Reply
Alex Olvera . 2018-06-03
Still some wrong things imformation in this video on fat
121 2 . Reply
Jonas Petersson . 2018-06-01
This is so so so wrong in so many ways
121 2 . Reply
Karl Hosking . 2018-05-30
"...but so will eating lots of anything". Not true. Eating lots of starchy vegetables, fruits and greens is absolutely healthy, and you need to eat more of them!
121 2 . Reply
Kimberly Cooper . 2018-05-25
Hank, can you review the studies done by Ancel Keys and John Yudkin, please? It appears that Ancel Keys cherry picked his data to say that fats cause heart attacks. However, John Yudkin's research looks like sugar causes heart attacks and eating fats that we evolved on are good for us.
121 2 . Reply
Juan José Pérez Caridad . 2018-05-24
I'd like to know how humans and other animals know the direction a sound come from. I always thoght in difference of phase, but, how can the brain detect that difference? Is it true that the owls have an ear higher than the other to hear sounds from above or below? Thanks.
121 2 . Reply
Dercio Silveira . 2018-05-22
Everything can kill us in this world. It sucks... I like to eat.
121 2 . Reply
Adwiteey Shishodia . 2018-05-17
You need to read more about saturated fat and why the arteries are clogged. They are clogged because insulin causes damage to arteries which cholesterol tries to heal by acting as a bandage. If you reduce the sugars, then saturated fats are actually healthy as they reduce oxidative stress as compared to unsaturated fats, which oxidize.
121 2 . Reply
Scott Wells . 2018-05-07
Snatoms!!!!
121 2 . Reply
Roger van der Puije . 2018-05-06
2:22 what are you talking about. coconuts are also mammals. they have milk, flesh and hair.
121 2 . Reply
Ailurophile . 2018-05-01
Cis>trans HA! CHECKMATE TUMBLR
121 2 . Reply
Imthiaz Basha . 2018-04-28
Do insulin resist burning the fat ?
Do insulin make you fat ?
121 2 . Reply
Sabrina-Liz Muthyala . 2018-04-27
We watched this in class and I was so confused because my teacher just said this guy is really at good explaining fat and I was like but it isn't just a guy, that's Hank
121 2 . Reply
Josiah Dent . 2018-04-17
A video on the Ketogenic diet would be very useful for a lot of people. Also everyone should read frankydman's comments below on Saturated Fat, this video is putting forward outdated information that just doesn't fit the current scientific concensus (albeit not yet the medical community, which is an insane situation to be in!)
121 2 . Reply
DcNative81 . 2018-04-11
Excellent Video 👍
121 2 . Reply
Gorb Locke . 2018-04-05
3:45 you look like you have skinny fat body type. 🤔
121 2 . Reply
blk bbw . 2018-03-18
Can you do an updated video of this? Because now it's been discovered/revealed! that Saturated fats are actually Healthy fats. And that omega fats are actually the ones that cause inflammation!!! Causing the body to use cholesterol to Repair the damage caused, especially from omega 6!
In facts it is now known that Insulin Resistance AND inflammation IS what causes the furring of the arteries!! i.e: Sugar & Omega 6! (plus some starch & omega 3) Because Sugar!!! causes VLDL Cholesterol!! We should ALL be getting our Artery Calcium Plaque checked with a scan!
121 2 . Reply
dasten123 . 2018-03-15
I understand this is not a food channel but I wished there were more examples in the video, like different oils you can buy and so on
121 2 . Reply
PANKAJ GAUR . 2018-03-08
So much into science that he forgot to comb his hair🤣
121 2 . Reply
Emanuel Correia . 2018-03-07
Isn't it a coincidence that each molecule in a type of fat has that exact amount of carbon atoms? Not some with an extra carbon or one with a missing carbon
121 2 . Reply
Jay Silvey Vera . 2018-03-06
You did not talk about ketosis induced by ketogenic diet or fasting.
121 2 . Reply
S.J.'s DIY Adventures . 2018-03-02
Awesome! Finally someone with a real explanation of good vs bad fat!
121 2 . Reply
haruno21 . 2018-03-02
BUT SATURATED FATS ARE SO DELICIOUS
121 2 . Reply
y0rema . 2018-02-27
When a particular type of fat is banned in America of all places, you know it's bad.
121 2 . Reply
Stephen Hazel . 2018-02-24
saturated fat is only solid at room temperate. it's LIQUID at body temperature. and it's how people store fat. so ain't nothin wrong with it.
121 2 . Reply
I want to commit sudoku . 2018-02-12
Oh no I'm gonna start checking things for trans fats everyday now
121 2 . Reply
king james488 . 2018-02-09
nothing wrong with fat... that's where the fat soluble vitamins are.
the ones that have had all the vitamins stripped out are bad.
121 2 . Reply
Mark S . 2018-02-08
god i hate chemistry
121 2 . Reply
Dennis Smith . 2018-02-06
Adam ruins fat/diets/sugar shows with citations the antifat craze was started by lobbyist working for the sugar industry. His explanation makes good sense but he is (at least partly) contradicted here, who is right?
121 2 . Reply
Freedomcat . 2018-02-06
You justify using mayonnaise on sandwiches. The kind I get has omega 3 in it
121 2 . Reply
Anthony Grigoryan . 2018-02-04
Trans fat banned? Tbh that would probably be great
121 2 . Reply
buddrfingrs . 2018-02-03
Trans = Bad.
121 2 . Reply
Ed Ayala . 2018-02-02
More nutritinal science please
121 2 . Reply
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