The Ketogenic Diet Explained in Under 5 Minutes. Low Carb = Best Weight Loss Diet?

The keto diet, another typical fad diet? Actually,
it’s been around for a while now, and people are getting some pretty good results from
it. So what exactly is so different? Well, most of these fad diets you find simply tells
you to eat this certain type of food and avoid those certain type of food and voila, you’re
on your way to losing a hundred pounds! Of course, a lot of them don’t really work and
makes very little sense. What’s special about the keto diet, short for ketogenic, is that
it changes how your body feels, and most importantly, how your body uses energy by placing you into
a state known as ketosis. And this is where all the magic happens.
In ketosis, your body starts utilizing substances known as ketone bodies, which are produced
by the breakdown of your body fat triglycerides. Quick science, first understand that your
body loves glucose. If it has glucose on hand, it’s going to use that first for energy. Ina
keto diet, the amount of carbohydrates you consume goes down, therefore, the amount of
glucose goes down, too. In order to combat this, your body uses stored glucose in the
form of glycogen, but then that’s going to run out as well. The next step is to convert
a substance known as oxaloacetate in the liver into glucose. At the same time this is happening,
your body is breaking down your fat into free fatty acids and sending it to your liver to
metabolize another important substance known as acetyl CoA. Acetyl CoA is then placed into
the Krebs cycle in the liver cells to produce energy. But it can’t do that right now. Remember
that oxaloacetate that was being broken down into glucose? Well, oxaloacetate is also needed
for the Krebs cycle to function. Now your liver has all of these acetyl CoA lying around
so it decides to break it down into two substances called acetoacetate and beta-hydroxybutyrate,
which are known as ketone bodies. It sends them into the bloodstream where other body
cells pick them up, convert the ketone bodies back into acetyl-CoA, into Krebs cycle, and
energy is produced! This is also really good news for your brain, since even though your
brain loves glucose, too, it can function on ketone bodies as well. In fact, ketone
bodies provide more energy per gram for the brain versus glucose, so win-win for your
mental capacity! Now so far, everything sounds good. Your body
no longer relies heavily on carbohydrates, it burns a lot of fat, and your brain functions
pretty well. But of course, there’s always a catch, a number of catches in this case.
Studies show that power output decreases in cases where maximum intensity is required.
This makes sense because the breakdown of glucose via glycolysis, plays a crucial role
in providing immediate energy for your body. With no glucose and glycogen in your body,
intense workouts become a lot harder. And the lack of glycogen also affects muscle growth,
since there is a strong positive connection between glycogen availability and protein
synthesis. Take the glycogen away, and the process slows down.
Oh, and there’s the keto flu, something that happens when your body starts transitioning
off of carbs and rely more heavily on ketone bodies. The “keto flu,” which isn’t an actual
flu, contains symptoms such as headaches, fatigue, coughing, nausea, and even upset
stomach. The positive note, though, is that it passes quite quickly and won’t come back
again unless you come out of ketosis. The keto diet is also very food restrictive.
A conventional diet has you eating roughly 20% fat, 30% protein, and 60% carbs. The keto
diet, on the other hand, shifts you all the way to 70% fat, 25% protein, and 5% carbs,
or below 30 grams. That’s a huge change that some people just cannot do. Cutting out so
many carbs is easier said than done. This is a huge battle itself, and a lot of times,
a losing battle. But even with the drawbacks, people still
advocate for it. And the reason that’s the case can be summed up from this study in 2004
from the Annals of Internal Medicine: “a low-carbohydrate diet (such as a keto diet), had better participant
retention” compared to a low-fat diet. That is saying, even with all the drawbacks, individuals
on a keto diet find it much easier to stick to the diet more so than a conventional diet.
This is because, with so much more fat and protein-dense foods, your satiety, or fullness
level, goes up much faster. A 200 calorie chicken breast or 200 calories worth of green
leafy vegetables, will make you feel more full than say a 200 calorie, carb-heavy pasta.
But even if this is the case, a calorie is still a calorie. Yes, protein and fat calories
will make you feel more full, but it won’t help you lose weight if you’re still eating
more calories than you burn. So is the keto diet worth it? Well, it all
comes down to, “It depends.” If you’re someone that struggles a lot with feeling full whenever
you go on a weight loss diet, then yes, the keto diet might help you battle those feeding
frenzies. Just remember those drawbacks that will occur, and at the end of the day, it
still comes down to calories in versus calories out.
What’s your take on the keto diet? Shared your comments below! Thanks for watching and
please subscribe for more future health and fitness videos!


  1. Please leave all calories in vs calories out argument here. I'm more than happy to respond to people wanting a discussion about it. I know I might have been a bit harsh and negative in the past about approaching the topic, for which I apologize, but I also feel it's only right for me to respond to everyone else fairly and respectfully moving forward.

  2. ummm… okay?!

  3. Off brand asapscience😂

  4. I heard swaggersouls say he was on keto a lot and I thought it was a drug so i looked it up and boy was i suprised

  5. actually… the keto diet would be the best for me, since i actually TRY to eat more carbs, since i mostly eat fat :/ damn

  6. So with the intensive workout drawback you could do a keto diet then lose the majority of the fat then after that do more intensive workout and scale your glucose up

  7. You lost me at keto

  8. not good for people who workout due to extremely low protein. I would do 5% carbs, 25% fat, and 70% protein.

  9. I got a keto ad on this

  10. How does our body produce energy in non-liver cells after the ketone bodies reform into acetyl-coA? You said it goes through the Krebs cycle but you need oxaloacetate in that cycle which our body no longer has right?

  11. Okay but does it work?

  12. Your body uses glucose first, as it is toxic above certain levels (5g in the blood for a 75kg male) and must be removed/used.

  13. no bs keto works

  14. During sports you body first uses glucose but then starts using your fat reserves and it lasts much longer

  15. Am I a nerd for understanding everything the narrator said?
    You've got a new subscriber, this is wonderful and explained brilliantly.

  16. Truth is, we dont need that many carbs. Especially if you're diabetic, like me.

  17. I didn't buy into the Atkins diet, either. Because carbs are needed. Without them, your brain and liver suffer. You're thin, but have some kinda dementia and liver damage.

  18. Let me pretend like I understood everything but actually I got confused even more

  19. There is a plan that I have been told that really works, anyone has used any of Ms_Pancho's affordable meal plans, if your are interesting see here:

  20. lost 17kg in roughly 50days on ~20gm Net carb. highly recommended if u r more than 20kg that your perfect weight.

  21. The keto diet is great if you live a sedentary lifestyle and have allowed yourself to get 50-100 pounds overweight.

  22. I came here from the misfits podcast lmao I’m a fatass and really wanna try dis but then dis is confusing af

  23. Pro's: No more being hungry or hangry after adaptation. Steady energy. No more fatigue. No more mood swings. Loosing fat pretty "easily". Con's: Being a sugar addict i dream of chocolate and coke. If i do eat carbs i need to get back to ketosis which takes a few days and feels pretty bad (hunger/cravings). One slip up and you're down again. I dont find it to be sustaineble in the long run, but some people really do. You have to réally commit to the diet.

  24. Is there an English version of this 😑😐😕😫😶

  25. Weight Loss vs Fat Loss

  26. Keto sounds like a total fad like Atkins. I lost 100 lbs in 8 months on Medifast.

  27. I lost 25 lbs in 2 months from Keto

  28. Amazing channel! I love you!

  29. The “Keto Flu” is pretty much your body just taking a detox. Your body is getting rid of all the ‘unhealthy’ stuff in your guy primarily along with all over your body. If you start detoxing you are on your way!!

  30. Man.. I wanna try keto but I like baking bread and pastry a lot

  31. Uh……..Am I skinny yet?

  32. I lost 10 pounds in 3 days in a state of Ketosis.

  33. So basically heat healthy and stay away from processed foods, high sugary drinks, salty snacks, ease up on breads, dairy foods, and meats and get more exercise

  34. Besides being so well thought out and edited, it's beautiful.

  35. As i understood it from all the articles i have read, carbs are good for high intensity workouts and greater muscle growth, while keto/high fat diets are good for heightened endurance and focus. To put it simply.

  36. Why does more fat burn fat?

  37. Wait so what exactly can’t you eat?

  38. I love keto diet, it's really fantastic for me, I really love Sapien Body Keto Diet Supplement Orange Mango Flavor Drink Powder! It tastes well and mixes well. It actually helps in reducing more fat loss.

  39. check out this 2 week diet

  40. So I need to give up beer to become keto? No thank you.

  41. all information here:

  42. Are some people particularly sensitive to Carbs? I have eaten carbs all my life and have actually become somewhat underweight or about average, despite eating plenty of carbs each day.

  43. Keto is for fat lazy fucks who are prone to gluttony. And bitches. Also vain,lazy and entitled. I rest my case

  44. When the video is 4:25

    Careful he's a hero

  45. There's a reason some bodybuilders dont use this diet depending on your genetics. sometimes it actually makes you fat

  46. My mom and dad have lost over 100 pounds using the keto diet over just 8 months

  47. My dad had nagging arthritis until he completely removed carbs from his diet.

  48. Holy shit and here I thought I was the only one zoning out from all these scientific terms and explanation…

  49. Acidification of the blood, liver and kidney damage, LDL concentration, and almost a 100% post diet weight gain. No thanks.

  50. "…nausea, or EVEN upset stomach". I think you reversed those lol.

  51. So I gotta eat meat and chicken and that’s it

  52. So I can eat like a big piece of meat and spinach maybe some fruit and I’m set?

  53. I wish I could get on keto, my main goal is to gain weight and stay healthy, what do you guys recommend me?

  54. Sooo confused
    Can someone give me an example what is 50grm of carbs?
    How much of salad, or fruits or pasta?
    Actuall grams?

  55. You said that oxyloacetate is needed for the krebs cycle, but in your explanation of acetyl CoA breakdown into ketone bodies it just ends up back into acetyl CoA?? Im confused as to why it had to go though that entire process and no oxaloacetate was created??

  56. So then the Keto Diet works so long as I consume 70% fat, 25% protein, and 5% carbs while being on a caloric deficit?

    Challenge accepted 😎

  57. This reminds me of the end of the Matrix movie with the architect but way more confusing

  58. Did anyone one understand?

  59. I did the keto diet for four years strict. I had lost 50lbs and my fasting blood sugar improved. However, my cholesterol went up because of the fat content and this had caused my first heart attack according to my doctor.

    Moral of the story: it's probably good when you are young, but don't do it if you care about heart health.

  60. sorry what

  61. The "flu" ONLY occurs when person who hasn't updated their electrolyte consumption. Salt, Potassium, Magnesium. GET THOSE AND YOU WILL NOT HAVE THE FLU

  62. The terminology.. What?? 🤯

  63. Can you be keto and vegetarian??

  64. You dont say

  65. this video is 70% science 25% opinion and 5% BS.

  66. This guy speaks too fast , put it on 0.75x its better

  67. 🤯🤯🤯🤯

  68. I think I'll try it, for a short time at least

  69. Too much bullshit
    Better just eat healthy

  70. The Keto Diet is really good for people with diabetes, much overweight and body fat, why with this diet can break insulin resistance without feeling bad and regain quality of life.

  71. Works fine for me. Course I'm single so I have only to account to myself. Faat is I combine Keto and IF. This is only until I reach my goal and then start adding things back in. Make it alright in your mind first and the body will follow. What's a few months to correct years of bad eating?

  72. Soo.. let me get this straight, Keto is a great strategy to loose excessive fat, normalize blood levels, fighting cancer, and other regulations and benefits over the body. But, I got some questions: the adaptation process to give us alternate source of fuel is "okay" for the body in a long term? Wouldnt that put the liver under stress all the time? Wouldnt that mess with the metabolisis of construction (muscle growth for ie)? When I need to run like hell from a cougar, where does my body find instant fuel? The restriction and demonization of carbs and sugars wouldnt cause psychological issues, like compulsive behaviors with conventional and social related foods? I mean, IN A LIFETIME AND CONTEXTUAL PERSPECTIVE, that lifestyle is really possible?

  73. It worked for me. I've lost 28 lbs so far since March

  74. I like the presentation with the exception of 2 things. the first is that on keto diet your performance on exercise will not drop at all. please refer to Dr. Tim Noakes father of the sports nutrition and now a keto follower. the second thing is the calories in and calories out, that will not make you fat or loose weight, one must understand that 2000 cal of carbs will become body fat while 2000 cal of fat will not. Refer to Dr. jason fung. The rest of the presentation is very nice. Thank you!

  75. I love the keto diet and am on my second round of it, but I’m a T1 diabetic , so I’m at such a disadvantage. Sure I can handle the high blood sugars, but when my body stops using glucose and goes to fat, my blood sugars drops like crazy when working out, resulting in a low blood glucose. Only remedy to this is to eat carbs which is the no no.

  76. Me: on keto

    What I must do: watch videos like these to not feel bad about myself 🙃

  77. The flu is good. It means your doing everything right. And you feel great after a day or two.

  78. i fucking hate this kind of videos, they are fucking lame, they care more about the drawings than the use of good transitions to expose the data, the fucking music makes me feel stoopid, the "nice" voice its just unbearable like "im explaining this shit in a very good manner so you should understand all this shit" STOP FUCKING AROUND

  79. Nice video

  80. wow!

  81. Have you Heared About Keto Diet contains Key Ketogenic Ingredients, Such as Raspberry Ketone, Green Coffee, Garcinia Cambogia and Green Tea, which all Help Support a Metabolic State of Ketosis and Natural Weight Loss.


  82. Interesting Natural Keto Diet Solution For Successful Keto Weight Loss Results!


  83. Hi all. Been doing HIIT + keto diet + OMAD dry fasting 5-6 days/week. At first I steadily got leaner + growing muscle. But not sure I ever got the keto meal right. So now I'm fearing my body's gone stale. Worse, days ago at work I slipped and hurt/inflamed my middle back. It keeps coming back, specially if I sit or stand for long, or after workout. So had to stop HIIT and pushups, might keep trying ab exercises. Don't cook much, except a frozen simple piece of meat or fish, but I also buy avocados, eggs, brazil nuts, green vegs, blueberries, hard cheese, olives, green tea, black coffee. Any suggestions what quantities of these things should make a keto OMAD? Any suggestions of chest/arms workouts safe for your back? (don't have any equipment at home I'm afraid) Thankyou!

  84. The suger and wheat industry will do anything to get you back.

  85. So nice explanation

  86. Just to keep the keto motivation alive (and for self pride purposes)

    I never realised how big I actually got until a random day where I realised I was buying XL shirts and breathing in on all my photos (didn't really work lol).

    2 holidays 7 months apart, 58 lbs lost since March and moving from embarrassed to proud is just immense.

    So what if I used an online coach, far too many people don’t accept it’s hard and say it’s easy but when you travel for work and just don't have the time to make those mistakes the internet brings… I made loads lol!

    I hit my goal well before flying out and whether people agree with it or not I just had to put it out and there as it worked for me so well and I loved every second…. Well I still do lol.

    XL to a S,
    36 waist to 30,
    42 chest to 36/38

    Hopefully you can tell the before and after pics! helped me so much

    I love you Keto X

  87. For all the confused people, he’s basically saying your body usually uses carbs as energy and eating low carbs for awhile makes it so they use fat as energy, hence the amazing fat brining effects of Keto.

  88. Awesome video, very informative thank you! Though funny how many people do not actually know anything about the depth of KETO diet, where it came from, and the real mystery behind Dr. KETO (the diet's originator), as THIS video actually explains:

  89. Well, that cleared up absolutely nothing

  90. Annoyed at the Free Keto bread advert beforehand your enticed to go to which I did
    It is trying to sell people a book. Couldn't find the free bread recipes

  91. So if I understood that right, the keto diet works so well, because you don't eat sugar and carbs (which are directly transformed into glucose) anymore and to still get enough energy the body basically turns fat into glucose(and some more stuff) which gives it energy. Was that at least remotely right?

  92. 3rd week on Keto diet and my life has changed. Thanks for God. I've struggled with diets all my adult life. With this one, I eat delicious food, I feel full after my meal and I forgot what being hungry is- especially for late evening snacks! Lost 4 kg so far and is don't crave carbs anymore. Loving it!
    PS: and as for the calorie business: I'm eating way more calories than I ever did every single day, so that story about calorie intake, deficit etc.. is clearly wrong!
    PPS Also no flu of any kind!!

  93. Was going to try it but if it means less muscle and energy in the gym I'll pass

  94. but for althetic performance you need a pretty crab heavy diet. just cut out simple sugars and add more whole carbs, fruits, veggies and count those calories if you cutting weight.

  95. Too fast speaking and drawing at the same time made the video a garbage for me – I do not care if the video has huge number of viewers. Wonder if this guy is a doctor or simply assimilates some views from elsewhere with a clickbait title! Disliked.

  96. My mom lost weight really fast using some Keto diet she randomly stumbled upon. This is the link if you're curious because it freakin' worked somehow lol
    Just thought some other people may like it

  97. So lose weight, do Keto , gain muscle, don’t do Keto

  98. When i had revealed this fat loss program “Yamzoko Weebly” through Google, I felt excited to give it a try instantaneously. This has given me excitement. I recommend you to Google this strategy as well. My pal has burned 10 pounds already due to this fat loss plan. .

  99. I'd like to do this but I love bread too much

  100. This was the least pedagogical information I've seen. Speed down, my man. Awesome visual effects though!

Leave a Reply

Your email address will not be published. Required fields are marked *