TMHS 257: The Keto Reset Diet: Burn More Fat & Become Metabolically Flexible – With Mark Sisson

You may be shocked to hear that most of us are terrible at burning fat today. It’s not because we’re not trying hard, it’s not because we’re not capable–it’s because our metabolism has been programmed to burn glucose instead of burning fat. Let me explain…

Since time immemorial, humans have survived with very little carbohydrates on our diet. Carbohydrates, as you’re probably aware, are the big gun behind spiking glucose and filling your cells with glucose reserves. Carbs fill your cellular piggy bank that you pinch off of all the time. If there’s easy access glucose available, that’s what you’re body’s going to burn for fuel. Burning fat is a much harder job, biochemically speaking. So, why in the world would your body go through the trouble to break down and spend stored body fat when it’s got so many glucose coins around? Short answer: It won’t.

This wouldn’t even be such a problem if it weren’t for the fact that we’re swimming in carb-dominant foods today. Some with a little longer history… potatoes, rice, beans, and sweet fruit. And some that we’re literally made up within the past few decades that have some folks strung out like Pookie in New Jack City… Pop Tarts, Honey Buns, Hot Pockets, Captain Crunch, Cheetos, and Oreo Cookies. I know each and every one of them well, for I, too, was a metaphorical Pookie. My cells were made of the remnants of Oreos and Pop Tarts, and I was a sugar-burner of the highest order. When the carbs weren’t coming in on a steady drip, I was lost. And I couldn’t workout enough to keep my body in balance. Enter my fat-burning revelation…

Once I learned that you can essentially reset your metabolic machinery to burn fat instead of glucose, I was able to workout LESS, eat MORE of the foods I loved, and have an even BETTER body composition than when I was logging in more hours at the gym.

Today’s episode is about one of the most effective ways to reset your body to burn fat for fuel. There are other ways to the prize, but this one can certainly be the most rewarding. It’s not just the benefits that you see with your body composition, but with improved cognitive function, greater levels of energy and stamina, reduced inflammation, and better health of your cells and organs overall. New York Times bestselling author Mark Sisson is on today to talk about The Keto Reset Diet and provide you with another tool you can add to your superhero utility belt. Click play, take good notes, and enjoy!

In this episode you’ll discover:

  • How chronic cardio (and an accompanied high carbohydrate diet) eventually led Mark to a big wake up call.
  • Why we often think we should just “try harder” if we’re not getting the results we want.
  • What lifestyle factors endurance athletes should consider to effectively improve their results.
  • What a ketogenic diet actually is.
  • Why the human body is designed to efficiently store and burn body fat.
  • What it means to be metabolically flexible.
  • Why your body is far less likely to burn stored body fat if you’re constantly eating carbohydrates.
  • The truth about the amount of carbohydrates that humans evolved eating.
  • How eating candy and eating bread can have the same effect on your metabolism.
  • Which one becomes insulin resistant first: fat cells or muscle cells.
  • Why fruit was the perfect food to help humans fatten up as we evolved.
  • The surprising amount of ketones your body can produce each day.
  • The difference between ketosis and ketoacidosis.
  • Why keto strips are a poor indicator of healthy ketosis.
  • The impact that insulin has on ketosis.
  • Who needs to be more cautious when trying a ketogenic diet.
  • The benefits of MCT oil.
  • How stress can be a hindrance to a successful ketogenic diet.
  • What some of the biggest mistakes are that people make on a ketogenic diet.
  • Simple tests to see if you’re ready to take a deep dive into ketosis.
  • Why a fast metabolism might be the opposite of what you really need.
  • Why developing the SKILL of reading your appetite is so important (the cheesecake example!).
  • Why not having any food post-workout might carry some nice health benefits.
  • Where the Atkins Diet slipped up (hint: plastic cheese!).
  • The delicious healthy fats you can enjoy doing The Keto Reset Diet.
  • Whether or not exogenous supplemental ketones are effective.
  • What concerns you should have about nutrient deficiencies on a ketogenic diet.

Items mentioned in this episode include:

Download The Transcript


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  • Mary E Brown
    10 Dec 2017, 11:25 am

    LOVE your show and been following you for 6 years……..never missed an episode.
    I am 63 yr young female with non functioning thyroid and on meds. What is Mark’s take on keto with females and thyroid issues? My DNA says I can have 22 gms of fat; very fit and athlete. Do not need to lose weight. Doing intermit fasting……12-16 hours

  • Brittany Andrews
    17 Dec 2017, 12:56 am

    Could someone from Shawn’s team PLEASE respond to my questions…even if it’s to say that you don’t know/have the answers…I have sent the following message multiple times for over a month…

    I found ‘The Fat Loss Code’ thru ClickBank and I’m interested in promoting it as an affiliate but I have a few questions…

    1. I notice on the sales page that there’s a 30-day money back guarantee but I know that ClickBank offers a 60-day money back guarantee…so which refund policy would be honored for this product?

    2. From the sales page I get the impression that there’s some sort of component to ‘The Fat Loss Code’ that customers would get bill for so what’s that all about, can customers opt to buy ‘The Fat Loss Code’ but without continuing on with the monthly portion of it but still get great results, etc?

    3. Beyond the first 6 weeks of this program, is the rest of the program organized in some sort of chronological or organized way?

    4. I was reading on the sales page that 1 of the bonuses was the ‘FLC Upgrade Yourself Resources,’ is the info again organized in some sort of chronological or organized way?

    5. How practical is this program for the average person?

    The program seems good but it also seems that it could overwhelm people with all the info that they would have to learn…so in other words would customers feel like they would have to put in a whole lot of effort to learn new info while at the same time it being hard/complicated to implement?

    6. Is ‘The Fat Loss Code’ currently being kept up-to-date and is new info/content still being consistently added?

    7. What makes ‘The Fat Loss Code’ different from other programs like P90X and other similar programs?

    8. Is there any promotional material/resources for affiliates?

    9. As an affiliate is there a way for me to get a “sneak peak” of this product?

    10. How is the “post sales” customer service? Do you guys stay on top of questions, updates, and interacting with your customers?

    11. What’s the refund rate on this product?

    Apologies for all the questions but I am genuinely interested in promoting this product but I want to know more about it before I do so…


  • Denise Wallace
    23 Jan 2018, 12:05 pm

    Hi Shawn this podcast was awesome information. However, I refuse to believe avocado oil is better than coconut, ijs 🙂 Also I don’t eat meat so how could keto possibly work for a vegan?

    • Shawn Stevenson
      21 Aug 2018, 8:16 am

      Hey Denise!

      Glad you’re a fan of the show (:

      A lot of the time people believe that being in ketosis means eating a massive amount of dietary fat. When, in contrast, you can achieve status by simply reducing your amount of carbs and sugar intake, and eating moderate amounts of vegan fats from coconut, avocado, flax, chia smoothies, etc.

      The main takeaway is to limit your overall carbohydrate and sugar load, while eating a bulk of your calories from dense fats!

      Hope this helps (:

  • 2 Jan 2019, 3:18 pm

    I tried keto but it didn’t work out for me.