Definitive Test! MCT Oil in Coffee When Intermittent Fasting -2 Fit Docs Run The Tests

We tested our ketone and blood glucose levels at multiple times after drinking coffee with MCT Oil, Cream, and Butter added, so we could bring you a definitive answer to the question...
What can I add to my coffee when I am intermittent fasting.
Over the course of four mornings, we (2 Fit Docs) stuck our fingers 16 times with our Precision Xtra Blood Glucose and Ketone meter.
Each morning we tested one ingredient:
Day 1 - Black Coffee (the control)
Day 2 - Heavy Cream
Day 3 - MCT Oil (most interesting result!)
Day 4 - Butter
As you may know, heavy cream, MCT oil, and butter are often used to create a form of keto coffee or bulletproof coffee.
We have often speculated that the ingredients were almost entirely fat, so they should not raise our blood glucose readings or kick us out of ketosis, but until now, this was just an educated guess.
Watch the video for the definitive answer on what does or does not knock you out of ketosis when you're intermittent fasting.
More Testing Video:
Definitive Test Round 2! Will Keto Coffee, Coconut Oil, or Ghee Break Your Fast? • Definitive Test Round ...
Sweeteners in Coffee & Intermittent Fasting • Sweeteners in Coffee &...
Sweeteners in Coffee & Fasting Round 2! Erythritol, Monk Fruit, Xylitol, Allulose • Sweeteners in Coffee &...
Can I Have Half & Half in Coffee When Fasting? • Can I Have Half & Half...
Can I Drink Black Coffee while Intermittent Fasting? • Can I Drink Black Coff...
Does Bone Broth Break My Fast? • Does Bone Broth Break ...
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Link to Dr. Becky's 2nd KZbin Channel: / beckygillaspy
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Disclaimer: Dr. Becky Gillaspy, DC received her Doctor of Chiropractic degree from Palmer College of Chiropractic in 1991. Her use of “doctor” or “Dr.” in relation to herself solely refers to that degree. Dr. Gillaspy was a licensed chiropractor in Pennsylvania, but she no longer practices chiropractic in any state and does not see patients. Dr. Keith Gillaspy, DC, CFMP received his Doctor of Chiropractic degree from Palmer College of Chiropractic in 1991. He also completed 300 hours of post-graduate study resulting in his certification in Functional Medicine. His use of “doctor” or “Dr.” in relation to himself solely refers to that degree. Dr. Gillaspy is a licensed chiropractor in Pennsylvania, and continues to practice in Pennsylvania, and see patients. This video is for general informational purposes only. It should not be used to self-diagnose and it is not a substitute for a medical exam, cure, treatment, diagnosis, and prescription or recommendation. It does not create a doctor-patient relationship between Dr. Gillaspy and you. You should not make any change in your health regimen or diet before first consulting a physician and obtaining a medical exam, diagnosis, and recommendation. Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition. Dr Becky Fitness LLC and Drs. Rebecca Gillaspy, D.C. and Dr. Keith Gillaspy, D.C. are not liable or responsible for any advice, course of treatment, diagnosis or, any conclusions drawn, services or, product you obtain through this video or site.

[@2FitDocs]

This video discusses fasting in the context of a ketogenic diet for the purpose of controlling insulin as it relates to obesity. "Some people will do a classic water-only fast, others a modified fat fast, and still others a bone broth fast" Page 202 'The Diabetes Code' Jason Fung, M.D.

[@RobertJBarnes]

What about autophagy and HGH, the two other benefits of post 12-hour fasting? I think Dr Fung said autophagy is not affected by fat but he didn't specify if HGH is affected. I think autophagy would necessarily mean HGH is occurring but I am a lay person and have not investigated the studies.

[@2FitDocs]

Some in the autophagy world believe that anything other than water during a fasting period will halt the process and others are a little more liberal in their opinions. Our guess is that HGH, autophagy, gene expression, etc. probably require a more rigorous fast to get the wheels rolling.

[@alanaragon4126]

Hello, I really appreciate your videos. Amazing information and easy to understand. I was wondering if you guys can make a video on water with lemon. Will this break your fast? What are the benefits to drinking it and does it aide in weight loss? Thank you! Love your channel!

[@user-io7kw2bd4w]

If your insulin can spike without glucose spiking how can you tell by this test that you didnt have an insulin response?

[@mariachacin999]

2 Fit Docs can I use artificial sweeteners?

[@robhimself79]

Almost 6 months ago to the date I had a small heart attack (98% blockage in my LAD). I'm only 38 and had not been to the Dr in 6 years. When I was in the ER I was told that I was diabetic and later was told my A1C was 10.1. A month after the hospital I lost very little weight was (was about 250) and my glucose numbers were only down a small amount but were very unstable. My meds killed the thought of avoiding food because I would be hypoglycemic often. I decided to try ketosis because I had lost weight doing low carb in the past so keto sounded even better. Today I am 213 lbs and a month ago my A1c was 5.2. I'm not on diabetes meds anymore and my cardiologist couldn't believe my numbers. Just thought I would share. As a small update. Weight is down to 203 and A1c is 5.1. Cholesterol is like 20.

[@2FitDocs]

Wow! That's fantastic!

[@damienkoy4689]

Your a champion bro, it's stories like urs that inspire me. Keto for life!

[@robhimself79]

DAMIEN KOY thanks. You have no idea how inspiring those words are brother.

[@rauldiaz2126]

Great story, thanks for sharing. I had a surgery last week I need to loose some weight too but cant work out for 6 to 12 months. So I have decided to go IF and Keto. Good advise Rob.

[@robhimself79]

RAUL DIAZ good luck Raul. Just stick with it and you will succeed

[@colombiana0215]

I love how she looks at him, such sweetness in her gaze...

[@ninfalozano4753]

I noticed immediately her eyes shine when she looks at him.

[@GeminieCricket]

My hubby and I are married 45 years and when we look at each other we still see the 20 year old and 23 year old selves. Sparkles in ours and theirs eyes are for real. Love.

[@plummetplum]

I noticed that, are they a couple then?

[@leak7161]

I thought they are siblings look like twins.

[@samuelreiter6412]

That’s what happens when you’re married for a long time, you start looking like each other.

[@cello4Jesus]

As a science teacher who teaches the scientific method, loves coffee, eats a keto diet, and does intermittent fasting - I thoroughly enjoyed th is video! 😀💯👍🏼

[@joef7011]

As a science teacher it was expected to hear that they did not made their research on a wide sample. And their further conclusion is probably wrong: it may not knock out of ketosis but maybe knock out of fasting benefits, such as autophagy.

[@boylain8481]

@@joef7011 will pure black coffee stop my autophagy? It really helps me when I'm fasting and it gives me some bonus gifts like bowel movements and better mood/energy, i take it before gym but I care very much about autophagy. I don't put anything on it only coffee

[@aw2589]

​@@boylain8481 black won't.

[@frankiefernandez5252]

Was overweight for the last 30 years with high blood pressure and a heart murmur along with other issues. 3 years Keto OMAD and down 70 pounds, murmur gone ! ....Age 54 no medications.

[@jstar1000]

Thats awesome, congrats!

[@johnnyw6467]

You have to be careful because OMAD will lack of nutrients u need for daily need.

[@Rebeca37]

They look so good as a couple!! As a recent widow myself, it makes my day to see such beautiful people sharing these informative videos😍😍

[@Simonpt2000]

Sorry for your loss

[@Rebeca37]

Thanks

[@galen8291]

I have been having black coffee with MCT oil and a half teaspoon of cacao for a couple of years, keeps me in my fast and makes the black coffee manageable!

[@gettothepoint9556]

Who is watching in 2020? 🙋🏾‍♀️. Started keto 18 days axi and i am loving it! This is by far the best video I've watched since i am on this journey. You guys made it easy. Thank you.

[@karliann1]

Congrats!! Week 10 here 32 pounds down!!

[@joyceelmer2178]

Odetta Davis 10/7/2020

[@rbgcyedba1107]

Today is 3/20/21

[@a.humphries8678]

How's it going?

[@jamesdean7756]

You guys that keep asking that question over and over sound like complete idiots I’m glad you’re vaccinated you will be gone soon

[@RizwanKhan_99]

Clearly, one of the BEST videos on KZbin for keto! I WILL share it with everyone I know. Thank you so much 2 fit docs!

[@SM-mc9iy]

I’m thrilled because coffee with out cream is just ‘no bueno’. Love the hubby and wife dynamic : ) Thanks!

[@samvasquez4528]

You guys are great together. Thank you for taking the time to make these videos for us. Greatly appreciate it.🙏🏻

[@stevekrok]

2 Fit Docs, this was fantastic! Had been struggling with this and didn't want to invest in the blood tests. This solidifies my butter coffee during my fast. Thank you so much!

[@somewhatanimated]

6 minutes in, I cannot get over how adorable you two are. You just gave me deep peace in my heart. Ok. now the info IN the video: your research is awesome and so useful and exactly what I've been looking for. Thank you!

[@Maryzlicious]

Being a research and analysis nerd, I really appreciate your care and process! I’ve been following a clean keto diet and intermittent fasting for three weeks and the results are so different from when I tried using extra sweeteners and special products. Videos like these are so helpful!

[@linmolina5901]

Very Informative! Appreciate all your hard work, the effort, time and sacrifices(pricking your fingers each time you perform tests to benefit us viewers) you both put in, sharing your research, knowledge, scientific and through your personal experiences, creating all these wonderful videos....I'm floured! You 2 fit Drs are amazing!!!

[@RebeccaPetty13]

Thank you guys so much. I just found you today and I am so excited to start all this. You are doing the hard work, I just have to follow. ❤️

[@rosapariury9711]

Yesss ...thank you Drs ... .

[@KimHarrold]

Multi day production efforts to create and document science based content, then edit and package it into a logical, watchable, entertaining piece is not easy. Just a ton of great info with clear effective production values...the time and creativity put into the content is really appreciated. Thank you.

[@karenc2589]

recently found you guys and love your videos! Over the past year I've been doing keto/low carb and went from 304 to 228.6 and love it. I've never been on a program where it wasn't a daily struggle until keto and I've been on them all. Love your tests and have started adding MCT oil to my coffee. I've been stalled for the last month or so so hopefully this will help! Showing Dr. Keith's story with my husband who is diabetic and has metabolic syndrome and hoping he will begin to understand. Thanks again!!

[@mjd3879]

You folks are great, warms my heart just watching your video. No hypey music, no bro talk, just a concise scientific experiment with two normal people, thank you for this!

[@BethyKable]

Very concise, clear presentation that really explained and demonstrated the facts and science behind it. Really appreciated how organized and succinct it was without a lot of babbling, weird music or hyperbole. Thanks so much guys !

[@adriaticseaeyes]

Oh my goodness, thank you SOOOO MUCH FOR THIS EXTREMELY INFORMATIVE and IMPORTANT video! This is what I've been grappling with as a newcomer to both Keto and IF!! :)

[@brookelayne309]

Very helpful for me. I’m starting Keto to save my life and I appreciate your information! Thank you.

[@mjix1984]

Thank you for doing this experiment! Eye opening and much appreciated that you went through the testing for us!

[@freedomgal3726]

This was awesome! Thanks for talking one for the team!

[@danielandkaren6247]

Thank you so much for doing these types of videos. There is so much information out here on KZbin that it can be very confusing and overwhelming. Your videos are perfect for those of us trying to navigate through all of the info and opinions.

[@yochum2002]

Thanks for the sacrifice of your fingers:) very helpful information I haven't been able to find anywhere else!

[@jimbattaglia8317]

Great video. Becky I just want to say I left my Dr office this week and he has taken me off my diabetic medicine and also cut one of my blood pressure pills in half. So your system works.

[@jennygoss8224]

Congrats. Stick to it.

[@photony]

I LOVE hearing stories like this. Well done!

[@Welle-bv2dn]

Jim Battaglia was

[@leftylove2011]

This is an adorable video. Informative as well but I have to say I enjoyed the love banter between you both.

[@dans9228]

Thank you very much to both of you for providing this conclusive clinical data concerning blood glucose and ketone outcome data for these 3 values. I have read many "opinions" concerning these 3 values but saw no conclusive data. Thank you very much!

[@michellemartinov5844]

Oh look, your both docs! I guess I didn’t really need to give you that info! That’s the lecture part of the nurse in me!

[@Nirabulator]

This was heartening to me, as I want to stay in ketosis, which has not only reduced my excess weight slowly, but also reduced the ache in all my joints from the hips down to almost nothing since the end of last summer. However, I really, really love to start my day whenever I wake up and finish meditating with a couple of cups of coffee with cream, even though I don’t usually eat any food until around noon. I am a retired 70-year-old, so I’m usually free to start my day slowly. It’s good to know that the coffee and cream are likely to at worst have no effect on my fasting period. Good job of testing your hypotheses! Thanks for sharing the results!

[@kdoornink]

Thank you! As an RN, you are answering the science based questions that I have asked. Loved the video.

[@Paul49Giloi]

You are such nice people. You give great advice but I just enjoy watching and listening to you. 😊

[@patriciaa.642]

Finally some channel producing data based on evidences. Congratulations!

[@4406bbldb]

MCT oil moved me from moderate ketones to heavy and I've never hit heavy before. I use MCT oil, coconut oil, butter and heavy whipping cream. I have to remember to eat food. I dropped my Glucose 80 points the first month. Good stuff at 71 i feel sponky.:-)

[@abdullaahmed5536]

Hello how are you?

[@a.humphries8678]

Did you have this while fasting?

[@GrammaPatriot]

Amen!

[@4406bbldb]

Ha I just found my comment from 4years ago here. I’m 75 and a metabolic power house. I’ve coined a phrase about MCT OIL . It makes my vacuum cleaner run. 😊

[@TheYoyozo]

Great video! I've often wondered about each of the add-ins tested. But there is something that I really appreciate more. I just love to see the two of you together. I sense that the two of your truly enjoy each other and feel very connected to each other. Definitely can tell that the two of you are enjoying being together. Since I'm single it helps me to see healthy relationships. Thanks! I wish you much peace, love and happiness together.

[@tinalee8246]

I am so glad that I found your video! You got an instant subscriber! THANK YOU BOTH so much for your tests. Now I can enjoy coffee with heavy cream or MCT oil without guilt about breaking my fast. Please keep up the great works, sincerely appreciate the science in your video.

[@shevysilverberg2114]

Very helpful. I started Keto and was wondering about the cream in the coffee. I am so happy I can have a cup while fasting.

[@sunnyarora3965]

Thank you for doing these tests! You guys did a great job.

[@p9948]

New onto your testing. Super for both of you. I will be back for more and I will start with Kerry butter on my next Costco trip.

[@johntokarski7487]

Thankyou for doing this research and sharing your results. You saved me a lot of finger pricking and time.

[@rmclarke15]

Fascinating! The differences between you also illustrate (much to poor Keith's frustration) the comparison between someone who is insulin sensitive and insulin resistant so well. You guys are so real, clear and also entertaining!!

[@musicboy2003]

Ruth Clarke yes, I agree about the profiles. I believe the more correct interpretation of the data is it is showing insulin spikes of varying amounts. Was the previous evening meal the same every test? Perhaps Dr. Panda’s circadian theories are in play here. The 78@120 for black coffee would seem that way. But, please! Bravo! Thank you both for this great test, it gives much food for thought to all of us who have adopted the fasting and keto lifestyles!

[@DavidBrown-jk2pm]

I think the test accomplished almost nothing about insulin sensitivity. And why would it? If anything, it showed she is less adapted to using ketones.

[@Sandyslosinit]

Thank you for this study. I've always felt that these would be the results , but didn't want to invest in a keto meter just to prove it !!! Blessings to the both of you 🌈

[@ayodejiopaleke6081]

Thanks for enduring the finger pricks just to enlighten us, I can't even stand 1 prick!

[@pauljames9527]

Thank you for doing a practical experiment and sharing, subscribed

[@jimivey6462]

You two have gone above and beyond! Thank you for pricking yourselves so that we don’t have to. BTW, I like my coffee with heavy cream AND butter.

[@ginabonina6427]

YAY for science! Show and prove. You guys don't just talk, thank you for your finger sacrifice.

[@rogerjohnson328]

Clearly the results show that coffee plus fat does not knock you two out of ketosis and tends to lower BG. However it seems quite a stretch to state that this means that these manipulations do not break ones "fast". They are just plane not the same though i wish it were true. I do not in fact know (nor any expert) of any test that can be performed to determine if even black coffee metabolically breaks a fast in humans. Does anyone have such information? Dr Longo even will not really answer that question and Rhonda Patrick flat out states that even coffee breaks the circadian rhythm and a fast.

[@qthirteen13]

The real benefits of fasting is stimulating autophagy...but coffee and fat is a very small affect on fasting and I doubt you automatically stop all autophagy in your body as soon a a drop of coffee touches your tongue lol In the end you have to decide how you want to run your fast...what you feel comfortable with.... no sense in going into a complete dry fast if it always makes you sad and hungry and miserable right? You are after all trying to improve your life not make it miserable. ;-)

[@sandradepew3817]

Thank you for this video! Very helpful! I’m curious to know what would happen if you added collagen Peptides and stevia as well as cream! I see you are testing all three (butter, cream, and mct oil) so will watch for that!

[@kensuzdoer]

Thank you for doing these tests. There is so much conflicting information about coffee and breaking fast. Facts matter! We have enjoyed your channel and calm and reasoning support for a healthy low carb and keto diets. Please keep up these videos 👍🏼

[@Gimo76]

This has been awesome and major helpful 1 month into keto. I have been having butter n cream coffee every morning for my breakfast. Been overwhelmed by what to eat. Will look into mct ...So been IF yah! Lost 10 lbs and feel great. 100 to go. Been in keto sis since day three and only carbs I get are from the Veges. Have cut one B/P in half my blood pressure is under 120... oh n thanks for not wasting our time asking to hit the button. I subscribed because you were great..

[@eileenvogel4135]

Thank you for doing this!! VERY helpful and I am now a believer of MCT oil!!

[@jonmccauley6490]

Great test! I did the same thing with my Keto Mojo and had the same results. The MCT oil that I only bought last week is certainly the key. It made my keytone levels go from .3-.5 to 1.0-1.1 every morning. And I was starting to drop weight much faster! I wish I had been introduced to MCT sooner. I've been on the mostly carnivore diet for a year now.

[@winaschnitzl3219]

Thank you very much for this great post, it answered all my questions. Stay healthy and safe, warm greetings from Germany

[@ADavidHD]

You two have such great chemistry that I caught myself smiling and realized I'd been smiling for the whole video.

[@ADavidHD]

Also, much gratitude for the science. It's very helpful to have data to keep improving my diet. I have been having a "breakfast" of just coffee and MCT oil for about a year now and not eating anything else between about 10pm and 2pm the next day. I have lost 15 kg and my body composition has improved in the most amazing way. Just bone, skin and muscle. Barely any fat.

[@thetree7694]

@@ADavidHD Hello David, I am very new to this Intermitent Fasting and while scrolling through the comments, yours caught my eyes. Could you please help me in telling how is this fasting done? Also, what is MCT oil and how much of it to be added to black coffee? How is this black coffee prepared? I am a 51 year old woman looking for ways to lose fat. I am 86 kilos and I stand 5feet, four inchess tall. Thank You in anticipation. Gratitude🙏

[@michaeldickens3357]

Thank you SO much for this test!!! Finally an answer!

[@Sylphadora]

Thanks for taking one for the team! Some people get too obsessive about "pure" water-only fasts. I was once one of those people, but I slowly started introducing matcha tea and black coffee into my fasts to make them less boring, and I'm considering reintroducing MCT oil and maybe butter into my extended fasts (+72 hrs). I have this problem with extended fasts where I start feeling really weak a few days into them and electrolytes don't help. Some time ago I had BPC during my extended fasts and it helped a LOT. I remember walking up 8 flight of stairs (4 floors) once on the 3rd or 4th day of a fast while running on BPC. I was feeling energized. I'm trying to keep coffee consumption to a minimum so maybe next time I'll have a bulletproof matcha instead. The thing with fasts is - you have to adapt them to fit your needs. The best fast for you is the one you can comply with. Fasting with "crutches" is better than not fasting at all. I always had the feeling the impact of fasting crutches couldn't be that big. Even when people talk about autophagy and say that water-only fasts are the only way to fast for autophagy, come on, be realistic. How much can the minimal amount of cream/butter/MCT oil, etc that you have in a day set you back? Maybe it'll set you back for a little big but the body will go back to autophagy soon after that. Lets say you have two BPCs a day, with 1 tbs butter + 1 tbs MCT oil each. 1 tbs butter is 100 cals and 1 tbs MCT oil is 130 cals. That would be a total of 460 cals per day. That's less than what you eat on a fasting day if you are doing ADF. Also, look at John aka The Amazing Fasting Fatman. He did a 150-day fast and had suplements and ACV daily. Those are supposed to stop autophagy but he had no loose skin after his fast. You know what that means? Autophagy!

[@NathalieTamayo]

Great design and very well explained. Thanks for doing this

[@hellsheart2730]

Most excellent video. As I am 56 days into my IF. Knowing this information moving forward is invaluable to me. MTC oil I must get as I do not eat my first meal until noon. Thanks doctors. As a result I subscribed to your channel.

[@beckyrosales5653]

Don't feel bad Keith, it's all good. My hubby starting Keto-ing in March to support me (A1C was 8.8 at the time), he lost 20 lbs. while I only lost 5! Haha The good news is my A1C is 5.9 today.

[@ezfitchick]

So there is hope for me Becky - I am losing so slowly I try not to get discouraged.

[@Happylady9621]

This answered my question! I've been wondering if heavy cream would affect IF. I will also have to get myself some MCT Oil!

[@nurserachel9807]

Thank you to both doctors♡ my triglycerides last month were 78! I started Keto in March 2019

[@neilyakuza6595]

Wow! Thank you for confirming this for me. I always had a feeling that drinking buttered coffee with mct dd not affect my ketosis, but now you confirmed it. Subscribed. Awesome information!

[@paininmydroid4526]

Beautiful couple, wonderful video.

[@nancyarchibald9095]

So now we need to know.. what are the effects of ALL 3 items in your coffee ALL together??? Which is how many of us make our Bullet proof coffee. ((??))

[@2FitDocs]

Hi Nancy! Check out Round 2 here: kzbin.info/www/bejne/mmmanYVqlNKgnZY

[@azabujuban-hito8085]

Many of us? Nope. Msny many people ( me included ) dont even take coffee when doing IF

[@rockhopper01]

Sumida Ryogoku many does not equal all.

[@azabujuban-hito8085]

@@rockhopper01 eerr..which part that I wrote many =all ?????

[@Tk-iz2ws]

@@azabujuban-hito8085 Errr... Your comment was unnecessary. His was a legitimate question. You should have just moved on without comment.

[@TLove-zc3dm]

LOVE, LOVE,LOVE THIS VIDEO BECAUSE OF THE SCIENTIFIC ASPECTS AND RECEIPTS… THANK YOU SO MUCH FOR DOING IT. ❤

[@jhanlon241]

Bravo, very insightful experiment. Thanks for all the work (and sacrifice) that went into this.

[@sunbeam9222]

I started loosing quite a bit of weight last year, didn't worry myself cos I was feeling good and energized even if I was not trying to loose the weight but my friends and family grew more and more concerned so I eventually went to see the doc he ran some tests and said nothing wrong with you, your results are great. Ok.. Then a week ago through some video I realized I only eat about 40 or 50 grams carb maximum a day. All this time I was maybe in ketosis even tho I never heard the name lolNow I d like to know more about this interesting diet. Thanks for the video!

[@onopuni7864]

Great test & video 👍 but I'm with you, 16 oz of coffee in 2 hours would be torture for me!! How about a redo with a little more generous coffee portion? thankU

[@caileycole1890]

I am so glad I found y'all! Thank y'all so much for suffering through the finger pricks to clear up some very important concerns for us IF/Keto doers! lol

[@maradall]

Brilliant! Thank you for actually testing this, instead of just presenting theories....

[@ianbatra]

I think a good follow up to this would be a video testing other common additives to keto coffee such as collagen, amino acids , cacao, or even a video on various sweeteners and their affect on blood sugar on ketones . It not surprising that all fat additives kept the blood sugar down

[@2FitDocs]

You've read our minds Ian! Those are all on our pending schedule to test. :)

[@TheAlinaCretu]

Technicaly fats boost ketones yet if one is doing IF for autophagy....it seems that fats break the fast from this point of view. I just finished a 68 hours of fast , no fats at all, my ketone began with 1,5 and finised above 5.6. And feeling great. Keith ...that ketone level so low must make it harder for you to fast as hunger may appear more often. I know...took me 4 months to get rid of insulin resistance but only ketogenic diet was not enough. I began fasting by 18 hours and now even 3 days but easiest is 48 hours once a week. Loved your video. Very interesting 😊

[@DepDawg]

Alina Cretu yes, my concern is stopping autophagy. I think I will consider adding an occasional fatty coffee while doing IF on hectic days when I need the energy boost. But on extended fasts of 24 hrs+, I will just stick to water.

[@TheAlinaCretu]

lonesumtee autophagy increases almost 300%in first 24 h and another 30 % in the next 24....so if you do OMAD you will get the best of authophagy without raising your cortizone for stress for not eating. At leat 24 h anybody can skip fats and drink only tea and coffee 😘. With time fasting comes naturally. ...this means cortisone will stay low when doing extended fasting. It helps checking blood sugars too 😊.

[@LitoGeorge]

Alina, do you fat for 24hrs doing Omad or 23hrs and then eat? Does your research on autophagy find a difference in that one hour?

[@TheAlinaCretu]

LitoGeorge ...there are days it is easy to fast...some not. Actually one hour or 2 doesn't make a difference. For autophagy it is important no calorie to be consumed...only water...coffe and tea...no sweetners. I find more important than the hours that pass into fast state the feeling wellness and not being stressed. Very important to break the fast when into a calm state of mind...not angry or tired... Hope this helps 😊

[@LitoGeorge]

Thanks Alina - to finish my understanding of what you're passing on: you said it took four months to get rid of insulin resistance. At what point did you count your 4 months? After starting OMAD or doing the 48hr once a week regime? What metrics do you use to state that you are now free of insulin resistance? Do you measure by blood or urine ketones? If you had to go an 18:6 day or a 20:4 day now would you ketones be at 3+ in the morning? Some questions to gain a greater understanding of your experience in healing insulin resistance which is something I believe I have.

[@louisegraham3204]

Helpful?......I’ll say!! Thank you so much, I’ve been looking for the answer(s) to this test for over a year. FINALLY !!!! clarity. A huge thank you, you two🙋‍♀️

[@MrJIMBO1942]

Just want to say how nice for you to do this & I learned a valuble lesson.

[@deejeff8846]

I use all natural coconut butter in my coffee! Its soooo delicious and nutritious

[@alirios523]

Thank you much for testing all these! You answered all my questions about the way I drink my bulletproof coffee. My only question is..Does the artificial sweetner kick you out of ketosis? I use liquid Stevia and sometimes I use the powder packet.

[@DavidBrown-jk2pm]

Ask yourself why/how a zero calorie, non digested carbohydrate could kick your body out of ketosis. Suppose you were in deep ketosis, and you went on a water and stevia fast? What would happen? Would your liver go apeshit creating glucose to stop you from passing out?

[@valeriabroadnax6628]

Oh my goodness! Thank you for doing this experiment and sharing your results!😀

[@cherryl225]

Oh joy! Very valuable channel here. Be right back, blending MCT oil to my coffee!

[@larisameschi2458]

Would love to see this repeated with different amounts of MCT, butter, etc to see if there is tipping points & where max benefits hit -- also how it might play out differently with insulin sensitive person vs. insulin resistant person.

[@barbarawarren9443]

You could set up that study and do it yourself too.

[@tbird1968]

I would LOVE to see you do another test (sorry fingers) of Sweet Leaf stevia, Swerve, Pyure sweeteners AND raw cacao powder. There is SO MUCH controversy regarding these supposedly innocuous sweeteners, and I think it would be a huge benefit to know for certain how they effect fasting. Thanks for the fun & informative video -I loved it!

[@DTurner168]

I just found your channel. Very enlightening and a relief for my morning coffee. I will also start adding MCT oil to my coffee.

[@allensmith342]

Thanks for doing this experiment. Lots of opinions are floating around the internet and it's good to have some facts.

[@gordonneitling5334]

This is excellent, and great to see, but I wish you had done one last test..... coffee with all of these ingredients added together!

[@asa3409]

And sweetener.

[@EnligUlv]

The only real test out there in KZbinland (on this topic) using the scientific method 👍🏼

[@poyntert]

Great Video! Thanks for testing the theories.

[@pattimacmac47]

What about coconut cream, (not milk), or cashew milk? I use both of those in my morning coffee.

[@edbenjamin5136]

Breakfast: coffee, MCT, ghee, cream, collagen hydrolysate, cinnamon, and cocoa powder. Not sure if the last items affect keto, but glad the first few don't indicate spikes!

[@natashareid-bartholomew3680]

Well it's breakfast so it should not matter. During a fast it just might.

[@airtran1280]

I really appreciated you for sharing the test results. You docs rock.

[@mariangie1544]

Very helpful! I am a medical technologist I work in a clinical lab and is refreshing to see real science in action not just facts being thrown at random that when I go to research are not really that accurate. For example the theories about the correlation between gut microbiota and obesity. THANKS,

[@stephaniemitchell8509]

What I've always heard to be the best benefit of fasting is that it increases (and prolongs) the bodies release of HGH (human growth hormone), which is our natural youth hormone. It always increases at night because we're fasting as we sleep, but the first thing we put into our bodies halts our production of HGH. Ketones and insulin aren't really a factor in what breaks a fast in that case, your HGH production is. I doubt there is a method available to the public where you could easily determine if these fats (or even the coffee itself) breaks this fast, but if you can test these things it would give a much more accurate test result. I'd certainly love to know, because drinking nothing but water for 16 hrs a day would be tedious. Morning coffee with a little cream is what tides me over for the first 5 hrs after I wake up, but I'm not sure it's worth the daily fast if either the coffee or the fat reduces my HGH production. ):

[@sdla690]

Good question. I too wanted to know

[@ketocricket3340]

I would be interested in coconut oil.. if it would be the same effect as the mct oil. Great video.

[@jewels4evr]

Correct me if I'm wrong.. isn't mct oil just coconut oil in liquid form?

[@Matt_Jones675]

@@jewels4evr You are wrong

[@shelby3330]

Hey guys! I just found your channel and I love it. I love the information, I love y'all's personalities, and I love the work you put into the videos. Thanks for all you do!

[@marthajameson1319]

Thanks soo much, this was exactly what I’ve been worried about. Have subscribed to your channel. Will share on Facebook.

[@kimberlysayler2786]

What exactly does Keith put in his keto coffee when intermittent fasting? Love the videos and appreciate the pains you take to validate your hypothesis:)

[@2FitDocs]

If I'm doing a "fat fast" I'll have a keto coffee with MCT and heavy cream. Occasionally, I'll add some butter.

[@kennettle]

I am intermittent fasting now and I wondered about this because I have heavy cream with my coffee.

[@misss685]

Best video on this topic. Saving to my favorite list. You worked hard and thank you for that. You cleared all my confusions regarding this topic. Hope you get many more views and likes😍😍😍

[@libsrcrazy9634]

I think you should try these tests out a couple more times to be very sure. I’m relying on your videos in my daily life.

[@davidcoomber4050]

What about Irish whiskey

[@DrJimWagnerAnnapolis]

HAHAHA But I bet you're serious! :)

[@kicknadeadcat]

Irish whiskey should only be taken on the seven most important holidays. Mondays through Sundays.

[@jimivey6462]

David Coomber Coffee/Irish whisky/heavy cream. YUM 😋

[@froggreen2067]

Go for it!

[@mmanjin]

Scientific studies have shown that black coffee combined with Irish whiskey has a synergistic effect that can prevent strokes and even reverse the effects of a stroke if taken in time. The alcohol opens the blood vessels while the coffee increases blood flow and was found to be as good or better than any medications in preventing and treating stroke victims. The added benefit is that it won't break your fast or knock you out of Ketosis.

[@MrsColonsWife]

Do you think coconut oil would be any different than the MCT oil? Also, I wish you had made the full version of keto or bulletproof coffee and tested that with all the ingredients.

[@gyaniadmi2347]

This video has helped a lot to clear all the doubts regarding the bulletproof coffee. Now I can enjoy my coffee with cream and butter everyday. Thank you for making this video.

[@edwardferron]

Great video! Thanks for the testing