Amazing Keto & Fasting Facts with Mark Sisson

The Real Skinny on Fat is a 9-part documentary series that uncovers the truth about FAT and how it affects your health, your weight, and your aging.
It is available to watch online for FREE beginning May 14, 2019 at 8PM EST. Be sure to sign up here
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I was very honored to have interviewed former professional athlete Mark Sisson as part of my docuseries: The Real Skinny on Fat.
A former long distance runner, triathlete and Ironman competitor, Mark was kind enough to share his ketogenic diet conversion testimony and offers profound insight into how keto, low carb, and fasting affected him on many levels, as well sharing fascinating information as it relates to athletic performance as well as how keto and fasting can benefit us physically and mentally in our every day lives.
This video comprises highlights from a much longer interview as part of our series. Be sure to visit my website at www.naomiwhittel.com to learn more.
I want to thank Mark for his time and sharing his expertise on these subjects.
Thanks for watching! :)
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Our health and wellness is our most precious possession. My goal is to help you not just survive but thrive by optimizing our vitality through functional foods, through nutrients, through movement (exercise), through beauty and through self-care. I’ve always considered myself a guide, an explorer, a discoverer who isn’t content with simply being told that things are the way they are. It’s this insatiable curiosity that leads me to travel, to touch and experience for myself, and see with my own eyes, to draw information and learnings from cultures all over our globe in order to share them with you so that we can all live a better life.
Join me on this journey and allow me to guide you to your better life today.
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[@jgambler1188]

This is the guy that, 5 years ago I heard and proceeded to change my life. Owe a lot to this man. Cheers

[@samtheeagle799]

He's come along way since Saving Private Ryan

[@anandarajah5118]

Just love they way Naomi interview him, not distracting when he is talking

[@jennjenn7045]

I know this has nothing to do with the video but the interviewer is really gorgeous. 😂

[@gbolt111]

I like when interviewer just lets guest talk and dont interrupt. Thats how interview must be done.

[@tommartin5667]

I went from 200 lbs to 150 lbs in 6 months. Size 38 inch pants to size 32. Feel so much better and more energy.

[@enukau]

What did you do to achieve this please?

[@tommartin5667]

@@enukau low carb

[@Plethorality]

32 is nice. Well done.

[@theroadtoamillion]

That’s awesome! I’m currently size 38 and just started keto. Would love to get down to a waist size of 32/34

[@elsizzle2000]

@@theroadtoamillion 6 months later how is it going?

[@icancanoe]

Mark is very articulate and has a great way of giving this message. Comes from lots of experience writing this stuff on his blog and several excellent books. My understanding is that he writes daily. Excellent interview. Now set up a debate between him and Jillian Michaels so that he can set her straight. I'd even pay to watch that.

[@jrstrange123]

Rich info. I'm sold to the idea it's more about how your energy levels make you feel than it is trying to measure calories and calculate macros.

[@Noor-jw2tn]

Not only energy levels, consuming crap when you are not used it can make you feel really ill. So ill it can knock you out for a couple of days. I have learned it is not worth having that treat.

[@roblacerra3257]

Quality over quantity is the way.

[@bikhoda6508]

currently I'm reading Mark's excellent book: Primal Blueprint (second edition) which incredibly well-researched and inspiring.. He is definitely a gifted educator. You should read it if you enjoined the talk.

[@tonyarose9181]

Where is the love Button! Amazing interview. Thank you for sharingring this knowledgeable information. ❤

[@sylviaking8866]

Mark Sisson is so eloquent. He explains things very well. Excellent interview.

[@christineslocum-wahl1063]

Yep my second year on Keto/ Paleo - never bin healthier...

[@liliadelgado9100]

Why would you bin healthy stuff?

[@amafuji]

*never ben healthier

[@banishedfromthedwarfplanet530]

Life Essence Is Stored In The Balls> *Been.

[@change962]

I really like Naomi. She does not interrupt. She does not show off her knowledge. She nudges interviewees in the right direction. Love it Naomi.

[@chugchug5657]

You my lady are a good interviewer! You are smart, observant and ask the right questions. A lot of people don't know that this interview could have been an hour if you would have interrupted and kept asking questions away like others have done. Thumbs up!!

[@naomiwhittel]

Thank you!

[@buck1946]

double ditto cj , you are correct sir !

[@oliverwills5949]

Wow! What a centered, calm and gorgeous lady who knows when to talk and when to listen. Great interview!

[@naomiwhittel]

Thank you and thank you for watching Oliver! ~ Naomi's Care Team

[@Plethorality]

@@naomiwhittel its such a rare trait in interviewers. You are appreciated.

[@shelion77]

I wish my sister in law would want to watch this, though she might not know English well enough. We are at our wits' end (my husband and I) on how to help her, because she's running a lot, and rationalizing a lot of carb intake because of that just like Mark Sisson here, and she's now gained fat even... and has some health issues. But she also studied food technology and later something like dietary studies and there's just no talking to her :( She knows better" because "she studied all that".. But she doesn't and all that remains is our own journey to health and weight loss. Perhaps at some point it'll open her eyes... I really hope so.

[@wagnerlopes5360]

I read his book The Primal Blueprint. One of the best among many. It is all there, Your health is simply there in a very simple and easy reading! Thank You Mark!

[@kiwdwks]

I'm a firm believer in low carbs no sugar. Thanks for the video!

[@christinawoodard3754]

I skip breakfast and lunch. Eat my lunch at 2:45 and dinner at 6:00 and I’m done. Probably 30 grams veggies at dinner. Do it all over again the next day. Lost almost 30lbs in 14 wks. I’m so happy food doesn’t rule my life anymore. Went down from 12-14 size pant to 6-8 pant size. Not done losing weight yet. It’s been a wild ride thank you MArk Sisson.

[@dianegordon4612]

I love this guy - and Naomi does a great interview.

[@michaelcylkowski5889]

@Diane, you are so right. Naomi could teach a Master Class on how to interview. So many interviewers get in the way of the interviewee by adding their anecdotes, which some times are irrelevant. Tim Ferris and Joe Rogan are two that come to mind regarding annoying interviewers. Just let the subject matter expert expound.

[@dianegordon4612]

@@michaelcylkowski5889 I just saw Mark interviewed by Mark Hyman and felt his comments derailed. Let the guy finish answering the previous question!!!

[@flowerchild777]

I first saw Mark Sisson on Know The Cause with Doug Kaufmann 😊 Loved him then, love him now. Great information.

[@jeanettecepin1173]

This guy is underrated. We need more of his knowledge.

[@StayExtraVirgin]

Mark looks so healthy for his age, clear and radiant skin, good weight and is 65 years old, he will be 66 on the 20th of July. If I didn't know his age, I would say he was 52 or 53

[@emh8861]

He looks his age.

[@Harmania890]

Honestly he looks and breaths like he's old af

[@taoist32]

Stay Extra Virgin - Health, Nutrition & Lifestyle Doesn’t look 65, but he doesn’t look like he’s early 50’s. I would say he looks 57. That’s still a good 8 year difference.

[@ickdon7999]

Here come the cultist vegan comments.

[@anthonym3351]

His frame looks younger but his hair colour makes him look his age

[@chriscunicelli7070]

Watch this guy, he makes a lot of sense

[@yvonnefinnegan4039]

Mr. Sisson at some point recommends plant foods, but many « cavemen » probably had zero vegetables for 10 to 12 months out of the year. My forebears were Neanderthals, shown to be 95% carnivorous. Got Northern ancestry? Just eat good and fatty meat baby! As I got older (in my 50s), I found that eating grains and vegetables and fruit made me sick. Having one-third of a potato as a test after going full carnivore for 30 days gave me horrible symptoms of anxiety (woke me up in the middle of the night) and a skin-crawling feeling that was extremely unpleasant ! Bye-bye potatoes! It is eye-opening to research the anti-nutrients in plants. So I think we have to do our own personal experiments, and I believe our activity level and age may greatly influence the way we should eat.

[@lilianmcleod7099]

Maybe your should read Dr. Steven Gundry’s Plant Paradox. Not all vegetables are rated equal. There are lectins in some vegetables which are highly inflammatory.

[@nnoo6227]

Yeah, I am doing the Gundry diet approach, quiet imperfectly I admit BUT, wow...i healed my 20 plus years IBS and athletic wise, never been so fit and fast. I am 49.

[@King1994517]

What's a cave man. Is that Kane when God banish him. Did he live in Cave. Because Adam-and-Eve kept the garden.

[@Noor-jw2tn]

@@King1994517 um...wrong paradigm.

[@Noor-jw2tn]

I stopped eating potato as well coz it made me feel ill. So I started to eat sweet potato however I had one last night for dinner at 6pm and was awake until 2am. I think you have showed me the reason I didn't sleep. Thank you

[@bivibikebaggins]

That one of the best explanations I've come across

[@nnoo6227]

The most approachable, complete and succinct video I have seen so far on athletics and nutrition HFLC. Excellent. Will share with my fellow triathletes. The word is already out there!

[@naomiwhittel]

Thank you! :)

[@vinoman4329]

His book helped me immeasurably. What I’ve learned however on my IF journey: if you can’t get it out of the barn, the garden, or the lake/ocean don’t allow it in your body.

[@acham3258]

great video. mark really helped explain why sugar burners have a different out appearnce versus fat adapted folks. i learned something new thanks

[@phoenixkepo2743]

Wow! Thank you for sharing. Mark was one of my triathlete heroes. Amazing how carbo-loading is still the norm in many quarters. Ketosis adapted is the way forward.

[@wesleyjacqueson9180]

Never watched her before, but man is she beautiful... she just has this glow to her.

[@kellyfontes7757]

simp

[@daniellepiche]

Thank you for publishing it again! 🥰

[@naomiwhittel]

My pleasure, glad you enjoyed it :) Lots to come!

[@kumack67]

I did exactly the same thing as him in the 80's!!!! Before a marathon, we pigged out on PASTA!! Carbo loading way the name of the game..... My knee tissue was breaking down, etc.... I am doing keto now and have never felt better. In December 2018, I had my thumb xrayed because I thought I have broken it somehow at work, started keto in January and the thumb is like a flexible noodle now. I can't even look at a bagel now and want to eat it....

[@rumrnr78]

Danielle Boileau I did triathlons in 80’s and 90’s and night before we always carb loaded- how stupid!

[@justlookattheflowers4239]

everything they used to say was wrong

[@jasonjohnson8487]

So, do you need a protein shake after a training session ? if not, what is the alternative to a protein shake. can anyone enlighten me 😃

[@nutech1810]

I do not use protein shakes and never need to eat them post work-out. I think protein shakes are a waste of $$. Sounds like you are still high in GLucose.

[@333-o1q]

Start practice fasting. It takes time to perfect.

[@thehealthychefri]

He's 100% correct on the nutrition. But constantly pounding and running and cycling reeks havoc on your vascular system, and raises C-reactive protein driving massive inflammation!

[@julianhawkins9423]

Amazing interview and insight into a healthy lifestyle change - love being active and feeling good and always wanted to change the way I eat and think about food as fuel 👍👍

[@dianaroberts9350]

I absolutely love what you do...the nterviews with all of these amazing individuals... has inspired me grately, thank-you so much! 🦋🌱🌿🍍🥑🍄

[@margrose5]

Excellent interview. He is articulate and knowledgeable. Well done, and as someone else mentioned, she is also extremely lovely.

[@thiemtran2891]

He is so lucky to have a great interview with beautiful woman. Hopefully he is feeling good with her conservation. Cheers.

[@marielilith]

So much value in this video

[@tomp4488]

Great interview Naomi. Thanks x

[@naomiwhittel]

Thank you!

[@hoffmancapote]

Thanks Naomi for a nice calm educating video

[@johncollins8304]

Excellent, heart-warming. Just one thing: you obviously believe in evolution, so to be logically consistent you should not say, '...our bodies are designed to...'. Only those who believe in a Creator are allowed to say that.

[@peace-a]

I like that his eyes match his shirt 👀 👕 😉

[@christinawoodard3754]

It all goes away. But if I eat anything other than meat and veggies it comes flooding back. I give it up completely now and embrace Palio 100%

[@micahlantz905]

Amazing guy and great video. He didn't let you talk much but that's okay...

[@Plethorality]

That's a good interview.

[@janzybee6369]

Naomi you are are a brilliant interviewer, engaged and yet let your guest speak. Very well done! 👏

[@LanceWinslow]

This is absolutely brilliant stuff. It makes so much sense. Not just for my athletics, but life longevity too.

[@naomiwhittel]

So glad you enjoyed this video and learned from it. Thanks for watching! :)

[@dewabius]

Naomi...😍

[@rdf7777]

wow shes beatiful. never seen her before.

[@DanesinTexas]

Love this sit-down interview between the two of you👍 thanks for the info.

[@bassman4588]

Thanks Naomi! Awesome interview!

[@ShotDownInFlames2]

Awesome interview

[@fernandog.aguirre2791]

amazing info! Thank you!

[@ejdaddy3161]

Wow this can be a life changing interview..

[@YouNolf]

Excess proteins do not convert into sugar. Gluconeogenesis is demand driven, not supply driven. Lots of good info in this video but be careful not to accept everything everyone says just because they are Mark Sisson, Eric Berg or Shawn Baker. Retain critical judgement and realize everyone is human after all

[@blackstatis0355]

YouNolf i though he said that excess protein is shed, burned or stored as fat through gluconeogenesis processing into glucose first, because the body doesn’t store protein. Isn’t this the principle behind the carnivore diet?

[@YouNolf]

@@blackstatis0355 what do you mean "principle behind carnivore diet"? I sincerely did not comprehend what you are saying. Anyway, I'd like to remind that "excess protein doesn't turn into chocolate cake", see ketogains on reddit

[@blackstatis0355]

YouNolf if you only eat meat, your body will break down the protein into glucose. You can sustain and thrive based on that principle. The body doesn’t store protein though right, it lightly stores glucose but then excess glucose as fat and it stores fat, so excess protein has to be shed or converted?

[@YouNolf]

@@blackstatis0355 if you eat only lean meat you will die. Eating fatty meat you use ketones as body fuel, and some amino acids are converted to glucose as needed. You'd have to eat inhuman amounts of proteins for the body to convert them all to glucose. Again, Gluconeogenesis is demand driven, not supply driven

[@markaguilera493]

@@YouNolf What does this mean "Glucogenesis is demand driven." What does this imply in your mind?

[@lolitamorris2943]

Very good.

[@ethansalgado4391]

He looks very healthy

[@MrLeebooher]

I started doing 16-8 in January 2019 to OMAD In February and went from 225 to 175 now in May with 0 muscle loss at 52 years old I feel strong and with a 32 inch waist with 45 inch Chest ! Don't believe your Fat Ass Doctor that was never trained in physiology and biochemistry as they were trained on what meds to give you to put a patch on a gaping wound which is your metabolic syndrome. I honestly thought this was a bunch of horseshit when I first started it but now am a very strong believer. Proof is in the pudding try it for 90 days and you will see dramatic results.

[@islandgirl581]

Did I just hear....a year before being fat adapted??? I was lead to believe it s a couple of weeks??

[@tashatrine6034]

90% fat adapted by around 6-8 weeks I believe he said and up to a year to get the last 10%

[@anachav3072]

Frank Suarez had study and apply in thousands if not millions a metabolic approach to health based on each person 'a metabolic system. They are some who do best with some carbs while others not. FS was the founder of slim clinic present on several countries

[@dansykes4965]

The word for the day is "literally"

[@anachav3072]

I'm curious to know how his cholesterol and glucose levels are, usually a low carb diet triggers cholesterol to go high. Would you comment on it please

[@goranvuletic8873]

No need to switch to the host all the time.

[@favoritemelodies9995]

A good communicator is not one who talks a lot but, one who knows how to listen..The interviewer is a great listener! Thank you!

[@djamilalahiani6489]

Thats the first time i see this guy. He explained things very clearly. Thanks a lot. Its very encouraging to do intermittent fasting along with keto.

[@mariolorbes2936]

This guy is very knowledgeable when it comes to nutrition and health issue.

[@GabrielaaCOLOMBIANA]

I absolutely loved this exchange! Such an incredible energy dynamic, thank you for this. Although I don't agree on the protein comment ( the mentioned studies are outdated), I think the overall converstion was so helpful for us laymen!!

[@jennib9116]

I’d love to be fat adapted. I don’t think I’ve ever been there. How can one tell?

[@markothwriter]

It's great to be able to have a couple bites of cake - and then leave the rest of it for later in the week or maybe the next week. We don't have to be gluttons.

[@rcwilliams8854]

Bravo! I process carbs well and being Italian, that’s a pretty good thing. I bake my beads from scratch, mill my own grains and eat an 85% fresh vegetable diet. It’s a balance. Be sure to watch this entire interview, which also contains accurate fasting info...

[@carnivorejames3406]

Keto Carnivore Strong Love alternating between the two

[@tmichaelhawkins]

Carnivore James me too!

[@ruthkaggwa8890]

So, so true! I also take a taste here and there, which sorts my guilt and we are good to proceed with keto :)

[@Guiller369]

Wow, Great video...

[@hudsontd7778]

Evolution!?

[@Noor-jw2tn]

All this keto language has been mumbo jumbo to me, counting macros and grams of anything. At last I a man who is talking sense. This is the way I live, according to how I feel once I have consumed something. I haven't always done this. I did have an amazing who showed me this way, but havent really haven't applied until the last 15 years or so. I have in the past practiced no food for 2 days. Something I will do again. Thank you so much for this interview. Mark explained so clearly that anyone could begin this right away.

[@naomiwhittel]

So happy to know you took so much from this interview! That's what it's all about :) Thanks for watching!

[@lindsayrobinson59]

⭐⭐⭐⭐⭐ amazing interview! 💕thank you!

[@tomcha75]

This is gold. So much common sense backed by science.

[@charmaine3818]

Thanks 😊 finally a sensible take on keto and IF👍🏻

[@filipzugec8346]

Steve Sanders in beverly hills 2045

[@michaelwachtel2933]

Right on🥩💪

[@ryanleemartin7758]

But how did he run long distances as an endurance runner with IBS that dictated his day?

[@roblacerra3257]

Makes no sense, I have ibs and have a hard time finding someone more athletic than myself. At least make sense.

[@Sunshine-lg8su]

This is so refreshing to hear on so many levels.... 🙌

[@johnboylong40]

I only argue that long distance runners aren’t sacrificing muscle. The body is simply adapting metabolically and physiologically to what it’s asked to do and endure. It responds in turn by doing it in the most efficient and proficient way possible. Lean, thin and light is the only way to go for a long distance runner. What an amazing thing.

[@buick4013]

Um no your body is cannibalizing itself just like a vegan .

[@ickdon7999]

Your body is definitely eating itself away, looking for energy wherever possible to sustain such a stupid, mind numbing activity called jogging.

[@darinbartosch1037]

Naomi looks like Carrie Fisher.

[@JoaoLuissonhar]

Beauty

[@karenbaldry8096]

Inspirational interview. Thankyou xx

[@Tonetwisters]

So how about teaching we who are blood type "O's" what food we can eat on a KETO diet? Because there isn't much, for some of us. And if you are really wise, put as much time into studying where your soul will live in the afterlife, as EVERYBODY will eventually die, no matter what you do or don't, put into it ...

[@sejithevoid2059]

He's 67 years old...

[@libo6368]

Excellent explanation..clear

[@michaelhanes8214]

Great interview!

[@radioguy3193]

☺️👍

[@bartvertrees4626]

Still a partial explanation. direction for a type ONE diabetic. HOW do I get started???? Where can I get help???

[@VoIPPortland]

Go to Dr Berg channel and search on Keto for Beginneers. Go through all the foods in your pantry/fridge that have more than just a few carbs or any sugar and give that away. Go to the store and buy grass fed meats, eggs, avocados - look up at list of Keto foods. Change your diet to 5% carbs, 75% fat, 20% protein.

[@crh251]

Bart, look up Dr. Jason Fung on KZbin. He has several videos about intermittent fasting and eating low carb. He is a kidney doctor in Canada who has helped several diabetics. He has written a few books also such as The Obesity Code and others. If you’re Type 1, he recommends working closely with a doctor if you follow his plan.

[@daniellamcrae4383]

Bart Vertrees read dr Bernstein’s book . It’s for type 1 diabetics . Or KZbin him .

[@melissagreeson3929]

Find Dr. Boz on KZbin. Or get her book. Anyway you Can! She is awesome! Check her out!

[@wmp3346]

Great info Mark

[@cfredz1001]

Geniuses!!

[@samperches407]

Carlos Frederico Cavalcante - Agreed!

[@francescoguarneri5777]

I do lots of fasting and feel great.. About keto diet I don't believe eating lots of meat and fish is good.. It would be maybe theoretically, but meat and fish nowdays are very contaminated with chemicals and drugs so personally I stay vegetarian.

[@nigellegall5971]

This guy is confused, Fat is burned ?? Fat is converted to glucose by the process of glycogen-is

[@HobzyMcRuse]

No. Glycogenesis is the formation of glycogen from glucose. When fat is burned (not stored) that fat is converted into carbon dioxide and water.

[@codytipton3615]

She challenges nothing he says the whole interview. Just drinks the kool aid from this snake oil salesman. Truly ground breaking interview.

[@johncall293]

I thought people who blindly criticize good information only did so in politics. You people are branching out, good for you.

[@ickdon7999]

Snake oil salesmen? You are clueless. Must be a pathetic, undernourished vegan.

[@catherinedee981]

Tut tut. There you go, name calling. Not a good characteristic.

[@dianegordon4612]

She already believes as many of us do - after watching thousands of experts. What is there to challenge.

[@briansurfer8625]

Diane Gordon yeah I’m not sure how you argue with it. Every time I go keto within 30 days I lose weight, my stomach issues disappear, my reflux vanishes. I sleep better and I wake up WAY quicker. I don’t even know the science of it, but the proof is in the pudding.

[@louisrobichaud5366]

God, that guy looks damn old!

[@russellbush6323]

Because he doesn’t dye his hair? Dude could kick most 30 year olds all day...you/me only wish we will be as healthy as him at his age.

[@roblacerra3257]

@@russellbush6323 exactly, people just try to justify their sad diet.