Keto vs Fasting: Which Diet is Better For Your Lifestyle: Thomas DeLauer

Which Diet is For Your Life? Busy Person? Desk Job or Active Job?

Keto vs Fasting: Which Diet is Better For Your Lifestyle: Thomas DeLauer


Weight Loss and Insulin

In ketosis, body becomes deprived of glucose and turns to burning fat for fuel

When we eat little foods that supply us with carbs, we release less insulin – w/ less insulin the body doesn’t store extra energy in the form of fat for later use

Intermittent fasting has been found to decrease blood levels of insulin

In a fed state, insulin is elevated so you store excess calories in fat cells. In the presence of insulin, the burning of fat is halted, while the body burns glucose instead

In a fasted state, insulin is low. the body starts mobilizing stored body fat from your fat cells and burning this fat for energy (instead of glucose)

Constantly eating keeps your insulin spiked, which slows your metabolism


Acute fasting directly influences the stability of neuronal circuits, wiring that dictates the flow of information in the brain and nervous system.

The cellular stress and lack of nutrition, due to fasting, blocks the synaptic activity of neurons that normally occurs in the brain, brain slows down

Sounds bad, but may be beneficial for brain health -overactive synaptic activity has been associated with diseases like Parkinson’s, Alzheimer’s


Lifestyle vs. Diet

Fasting is more to do with When you eat and ketosis is more to do with What you eat

I.F. can be utilized everyday, or a couple times per week, more of a “diet” while ketosis is more of a lifestyle

In a ketogenic state, it is critical that you do not consume too many carbs, or protein – a state that must be carefully maintained

Fasting can be as easy as not “doing” something and you can enter a fasted state by simply not eating for 16-20 hours – it takes a bit longer to enter a ketogenic state

With fasting you will likely still consume the same foods you have always done, albeit, less and later in the day

Ketosis requires you to change what you buy and consume, since most people aren’t accustomed to having 75% of their diet consist of fats and only 5% carbs


4 calories in a gram of carbohydrate or protein
9 calories in a gram of fat

On a ketogenic diet people usually eat less – fat is a lot more satiating than carbs

While fasting, consuming all your calories at the end of the day, makes you feel satiated quicker → eat less

Fasting can be a struggle – can struggle to go 16-20 hours without eating



2) 10 Evidence-Based Health Benefits of Intermittent Fasting. (n.d.). Retrieved from

3) 10 Proven Health Benefits of Low-Carb and Ketogenic Diets. (n.d.). Retrieved from

4) Ketogenic diet and mental health. (n.d.). Retrieved from

5) Intermittent Fasting And The Brain – mindbodygreen. (n.d.). Retrieved from

6) How Does Fasting Affect Your Brain? – Diet Doctor. (n.d.). Retrieved from

7) 15 Ways Intermittent Fasting Can Improve Your Health | Alternet. (n.d.). Retrieved from

8) Fat Burning Vs. Carb Burning During Exercise Over Time | Healthy Living. (n.d.). Retrieved from

9) The Effects of a Ketogenic Diet on Exercise Metabolism and Physical Performance in Off-Road Cyclists. (n.d.). Retrieved from

10) Intermittent Fasting and Cognition | The Biohacker Guide by Nootrobox®. (n.d.). Retrieved from

11) 23 Studies on Low-Carb and Low-Fat Diets – Time to Retire The Fad. (n.d.). Retrieved from

12) Effects of a 3-day fast on regional lipid and glucose metabolism in human skeletal muscle and adipose tissue. – PubMed – NCBI. (n.d.). Retrieved from
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20 thoughts on “Keto vs Fasting: Which Diet is Better For Your Lifestyle: Thomas DeLauer

  1. Most of these videos seem to be in the context of losing weight. I'm at a healthy weight and I'm middle aged. I actually want to manage/improve my general health and maintain or slightly improve my fitness level (strength, stamina, etc). Which is better?

  2. Do fasting but don’t actually eat smaller amounts of food I just eat as much as possible in a single meal like a snake

  3. Can someone help me figure out if a low carb diet will make me lose that muscle pump and blood volume forever? 🙁
    I'm asking cause I'm really diggin this diet and wanna try it out, but during a LCHF diet, on my resistance workouts, I feel like I'm too soft and without muscle pump.

  4. comparing ketosis and fasting kind of funny because when you fast over 8 hours your body goes into ketosis. So for the extra 8 hours your body is producing ketones therefore you are in ketosis.

  5. Thank you so much! I'm new to both. I had thought that they were the same, so being a newbie faster and doing Keto diet at the same time has been so hard on my body; it's been too much shock at once. My Keto fever was nauseating. However, now that I know the difference, I know I can do one without the other.

  6. Oh for fuck's sake, the non-brain-taxing construction is a white guy, but the brain-using jobs are women and black men? You're such a politically-correct cuck! FUCK. YOU.

  7. Dude, you irritated the fuck out of me by talking about how men's balls and brains don't shrink, while showing a man and boy during the balls bit, then you show a woman when talking about brains? Fuck you.

  8. So I just need to know in a exteneded fast, that if I`m having a 1/2 tablespoon of coconut oil and a tablespoon of coconut oil powder in the mornings am I still in fat burning ,autophagy ? its about 120 calories twice a day. Am I still getting the benefits? I do about 5 days every 3 weeks….and then I break fast with keto (avocado or soup and green drink), then refeed with a little carbs and then on to omad for the rest of the month…

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