Pruvit KETO OS Review & Results

Hello world! If you’re looking for a detailed Pruvit Keto OS review review driven by education and results, you’ve found it!

My name is Rachel Vrabel and you can find me on Instagram @womensblogtalk or on Facebook.

I started drinking ketones in 2015 when Pruvit first brought exogenous ketones to the market when the only flavor was Orange Dream, and now there’s a buffet of delicious flavors!

It’s 2021, and I continue to drink ketones daily since it gives me so many benefits and want to share my journey with you!

Pruvit Keto OS (Ketone Operating System) is an exogenous ketones powder you mix with water that comes in charged and decaf in a variety of YUMMY flavors! You just mix, shake, and drink 1-2x per day for optimal ketosis!

Visit Pruvit’s Website

Drinking ketones daily since 2015 – Still Better! 

One serving of Keto OS elevates your ketone levels and puts you into therapeutic ketosis.  The skinny is – you help your body burn fat. It suppresses appetite, and is a great tool for intermittent fasting.

What I love most about drinking ketones is how they make me FEEL – LIFTED MOOD (happy) and with sustained energy throughout the day, focused, and much better workouts!

The 10 Day Drink Ketones Challenge! *NEW*

Click Here to Learn More about the 10 Day Drink Ketones Challenge, this is an awesome deal for new customers! 20 sachets in a variety of flavors in a mix of both Charged and Decaf.

The 10 Day Drink Ketones Challenge

What is Ketosis?

Click here to watch a short video explaining ketones, ketosis and how Keto OS works

Pruvit Ketones Vs. Ketogenic Diet

The Ketogenic Diet will also put your body into ketosis, however it’s very strict – less than 20 grams of carbs per day. To put that in perspective – one cup of rice has about 48 grams of carbs. Three bites and you’re out of ketosis.

When you lower carbs to that level, your body makes “endogenous” ketones through a process called Ketogenesis. Your body turns fat into a fuel called a ketone body (BHB).

A ketogenic diet has many therapeutic applications and while it’s not new, it has become a very popular way to lose fat quickly.

A keto diet is NOT a ticket to eat all the butter, fat bombs and cheese you want! This would not be a well formulated keto diet if your goal is fat loss.

Fasting and other Keto diet regimens date back to 500 BC, and the ketogenic diet has been used to treat epileptic seizures since the 1920’s (NCBI study).

My younger sister was diagnosed with epilepsy at 8 years old (she’s 38 now), however following a Keto diet has not been something she can stick to, like at ALL, but drinking ketones still do help her in many ways (more on my sis…keep reading).

Pruvit results
Me and my sis! Best friends and #PruvitSisters

Ketosis in Under an Hour

The definition of KETOSIS is having elevated blood ketone levels. By drinking Pruvit Keto OS “exogenous” ketones you put your body into a much higher therapeutic state of ketosis and give your body a FUEL SOURCE, in under an hour. 

You DO NOT have to follow a ketogenic diet to benefit from drinking ketones!  Ketones bring compliance to any healthy eating plan since they help so much with energy and appetite suppression. I actually eat carbs often, just the RIGHT carbs!

Benefits of Drinking Ketones:

  • Sustained energy
  • Increased focus
  • Suppressed appetite
  • Better mood
  • Better sleep
  • Muscle preservation
  • Clear skin
  • Fat loss

Pruvit Keto OS Results – My Initial Fat Loss Results

The first time I started drinking Pruvit Keto OS (Orange Dream) was in Oct. 2015 and it helped me to eat healthier, snack less,  and get some fat loss going.  I lost about 11 lbs in six weeks!

keto os before and after photo
Results may vary

This was huge for me since the prior year I’d gained some weight going through fertility treatments. I went through 3 IVF cycles, lost a pregnancy, and went through a D&C surgery.

The hormones were no joke. No matter WHAT I did, I couldn’t seem to get any fat loss going, not to mention my mental state, I felt depressed.

However, after starting the ketones I noticed my clothes started to fit differently, I wasn’t as hungry, and my mood did a 180!

Like many lifestyle changes we get excited about starting, I got complacent after a while and stopped drinking them.

Sometimes you don’t realize how much something has helped you until you stop, can you relate?

I started drinking ketones again when the Maui Punch came out in 2016, and haven’t stopped since. I made the realization that a daily dose just helps me all around to stay on track in so many ways!

Keto OS Results – Committed to Ketones!

Pruvit Keto OS before and after
17 lbs lost on ketones…results may vary, these are mine!
Pruvit Keto OS results
Before and Better

Long Term Benefits of Drinking Ketones

When I recommitted to drinking ketones, I made some other lifestyle changes as well. I not only wanted to lose fat, but I wanted to shape my body.

I joined Orange Theory Fitness (which is HIIT training – run, row, weights) and I do that 2-3x per week and  play some beach volleyball on the weekends.

I did eat a strict ketogenic diet my first six weeks getting back on the ketones which helped a lot to get my body burning some serious fat for fuel.

But after a while, I just didn’t feel like following a strict Keto diet was for me. I missed fruit (and carbs) and I’ve never liked fatty meats. So now I just try to eat healthy most of the time but I still eat carbs and have my cheats! 

The combination of drinking ketones, eating healthy and exercising helped my body fat drop from 25% to 18% in four months and I lost 17 lbs!

Since being back on ketones, I have my energy back, my mood is lifted, my skin is clear, and I’m a LOT more focused and productive in life.

What Inspired me to Try Ketones

As I mentioned before, my sister has had epilepsy since the age of 8 and her Dr.’s have always recommended a Ketogenic diet, but she has a hard time with diet restrictions, who doesn’t?

Drinking ketones gave her energy and helped suppress her appetite so she was able to make better food choices and get to those yoga and Orange Theory workouts. She lost a little over 11 lbs in 3 weeks! She has never followed a strict Keto diet.

I thank her all the time for introducing me to ketones! We have both kept our results by continuing to drink them daily! Ketones are really good for your brain!

keto os before and after photos
Results may vary #pruvitsisters

How to Drink Ketones

If you’re just starting to drink ketones, don’t make any major diet changes overnight. This is a new lifestyle, give yourself time to adapt!

For your first week, just add the ketones once a day and see how it changes your appetite, and how it helps you FEEL. Then gradually move on to lower carb or Keto diet if that’s your goal.

I’ll say this again – you do not have to follow a strict high fat ketogenic diet to lose fat drinking ketones – ketones are going to light you up, make you less hungry and you can eat whatever macro balance you want!

Creating a calorie deficit is EASY drinking ketones and that’s all you need for fat loss. However I will say a low carb or keto diet is going to bring you the fastest results, and some do like the keto lifestyle as a whole.

Pruvit Keto OS Flavors – from Past to Present

Pruvit Ketones

Pruvit’s History

Pruvit brought their exogenous ketones to the market place in 2015 using Dr. Dominic D’Agostino’s patented formula of ketones + MCT (medium chain triglycerides, which is fat extracted from coconut).

The first two original flavors were Orange Dream and Chocolate Swirl, which have now been discontinued.

However, you can buy these flavors in the new  Keto//OS Pro shakes!


Keto Max

Next came Keto Max! Keto Max BHB salts were different from the original Keto OS salts.  Keto Max was 40% stronger than the original Keto OS.

All Keto Max/NAT flavors are gluten-free, dairy-free, Vegan and Kosher Certified and contain CMed 100 (AC-11) for DNA repair.

Keto NAT is NOW – everything is in the new Keto NAT formula!

Keto NAT samples for sale

Keto NAT

What is Keto NAT?

Keto NAT is Pruvit’s newest and current formula – the worlds first all natural, fermented ketones.

NAT ketones are even more bioavailable, and they are BIOIDENTICAL to the BHB ketone bodies your own body makes when in nutritional ketosis.

Berry Blue ketones


Read my other blog on Keto NAT here 

Keto NAT Flavors explained – these are all the mainstay flavors you can buy anytime!

  • Maui Punch tastes just like fruit punch
  • Raspberry Lemonade is a sweet and tart refreshing flavor which tastes just like it sounds
  • Splash is a light, citrusy, watermelon-grapefruit fusion
  • Lime Time reminds me of lemon/lime gatorade
  • Swiss Cacao – a mix between milk and dark chocolate
  • Heart Tart  strawberry sweet-tart
  • Tru Passion – tropical passionfruit flavor with hints of mango
  • Strawberry Peach – a perfect fusion of flavors, definitely in my top 3!
  • Blueberry ACAI – lighter berry flavor, almost like a blueberry tea on ice.
  • Berry Blue – tastes just like a blue slush puppy! My favorite!

We have had many special seasonal flavors so I can’t describe them all… but some of the best ones I’ve tried are these guys right here!

pruvit seasonal flavor samples

Whenever there is a new flavor release – it’s basically a beta test… they see how people like it and that will determine whether it comes back, disappears, or becomes a mainstay flavor. If you’re a regular customer on a monthly Smartship – you will always have first access and sales on all the new flavors!

Keto NAT vs. Keto Black Label

Pruvit’s Unleashed line – now called Black Label – are still “NAT” ketones but they are amped up with 30% more ketones and more caffeine than Keto NAT. 

You will definitely feel the difference drinking the Unleashed line! So if you’re caffeine sensitive, stick with regular NAT, or decaf.

The Unleashed Blue Ocean was always a favorite of mine. It used to be blue, but they’ve added black fulvic acid to the new formula (for brain health) so now it’s a much darker color.

Black Label Flavors explained:

  • Blue Ocean – Tropical Pina Colada flavor.
  • Ruby Rush  red, juicy grapefruit.
  • Eclipse black cherry flavor

pruvit black label

Keto Kreme with Functional Fat Technology (FFT™)

Keto Kreme is Pruvit’s fat coffee supplement powder you mix with your coffee or tea that’s great for boosting fat loss, an energy and brain boost, and is very filling and yummy!

New keto kreme from pruvit

What’s in Keto Kreme?

  • Healthy serving of fat (12 grams) made from coconut oil, MCT Powder (Medium Chain Triglycerides) and sweetened with stevia.
  • Four different patented collagen formulas, new “Functional Fat Technology” *FFT
  • Collagen, which benefits: hair, skin, nails
  • Can even mix with just water and ice as a shake
  • CMed 100 (AC-11) for DNA Repair
  • Great for intermittent fasting “fat fasting” or drink a Keto NAT in the morning and “break” your fast with a serving of the Keto Kreme at lunchtime, keep fasting until you’re hungry. Or, drink 30 minutes before dinner to fill you up (so you eat a smaller meal). I actually love using the Keto Kreme to make pancakes!

Keto Reboot 60 Hour Fast

keto reboot

Pruvit’s new Keto Reboot (on sale each month from 1st – 5th) is becoming a very popular way to reset your metabolism for a full body reset. A lot of changes can be made in 60 hours and bad habits broken.

The Keto Reboot was an AMAZING experience, and I’ve done it several times. Some people do it monthly and if you have weight to lose, do it!

Keto Reboot is a 60 hour fast (no food) using Keto NAT, Keto Pro, Keto Better//Broths, and Signal-OS capsules for DNA repair.

But don’t think of the Keto Reboot as a quick fix, you’ll definitely want to just drink ketones on the regular as well.

Read about my Keto Reboot Experience here

Testing your Ketone Levels

Drinking one serving of Pruvit’s Keto OS “Bio-hacks” your body into ketosis in under an hour. 

In fact, you can pee on a ketone test strip 45-60 minutes after you drink it to “pruvit.”

These are available at drug stores, and you can read about testing for ketones here.

pruvit results

However, don’t get too hung on on peeing on stuff. Blood ketone tests are far more accurate than urine strips but they’ll give you an idea when you’re first getting started.

Once you’re in ketosis for a while (especially if you are following a keto diet), your body will start to utilize the ketones more efficiently and they will be USED in your body vs. just peeing them out.

So don’t get discouraged if your test strip gets lighter over time – that’s actually a good sign you’re fat adapted.

The Keto Mojo is really good if you’re looking for a true blood ketone/glucose meter and they offer free shipping. I also test my fasting glucose levels with the same kit (just different strips).

Keto Max testing with Keto Mojo

Does Keto OS Have Any Side Effects?

Like any supplement, not everyone will have the same exact experience. If you’re sensitive to caffeine and drink the Charged version late in the day, then you may have trouble falling asleep, just like coffee may keep you up.

I can tell you I can drink a Keto NAT charged late in the day and have no trouble falling asleep, Unleashed will keep me up so I make sure to drink it earlier.

Some people report an upset stomach when they are adjusting to ketones. It’s ok to just use half a pack for as long as you need to if this happens, or eat a little something first.

If you’re worried about this, a great way to start is with the Keto NAT Lites – these are half servings of the regular Keto NAT’s, and they are all decaf. Super yummy flavors, and also parent approved!

Pruvit Keto NAT lites

How I Feel Drinking Daily Ketones

keto os reviews
Keto OS gives me a ton of energy for Volleyball!

I’ve been sailing through each day no longer experiencing those slumps of energy like I used to. No more brain fog, and no more afternoon coffee. Much more focused!

My workouts are much more powerful and I push myself harder whereas before I might just stop when it got too tough.

It gives me energy to get my butt to the gym when I would sometimes blow it off.…you know how that goes. Half the battle is getting there!

Even my volleyball game has improved. Having the endurance to play game after game has been easier, more fun, and made me more competitive! I never go to play ball without drinking a full Charged on the way!

It helps my MOOD tremendously…my outlook and productivity has completely changed. Happy, happy!


How to Purchase Keto OS & How Much Does it Cost?

The only place to purchase Pruvit Keto OS is online from their official website from an affiliated Pruvit partner like me. I help a lot of people on this journey and I would love to help you!

It comes with a 100% 30-day money back guarantee, and they will refund up to 90 days of sealed packages.

The cost varies depending on how much you buy, and if there’s one drawback to this product, it would be that it’s a bit pricey! It’s up to you to determine just how much it helps you and changes other aspects of your life to see if it’s worth it.

To me, it’s worth EVERY penny. They make the most natural and strongest ketone product on the market, with the best flavors.

Pruvit Samples

Visit my Keto Samples Blog once you’re done reading!

I have 5 & 10 day experiences if you’d like to “try before you buy.”


SmartShip – Get your Ketones 22% off every month

The Smartship option (just an option, not required) provides 22% savings on your monthly order. It’s like having a standing coupon in place.

This is the cheapest way to get your ketones monthly, and you can cancel anytime, or change flavors. Smartship customers also receive a FREE additional box every 4th month you’re on Smartship!

Keto os monthly ship

Becoming a Pruvit Promoter 101

This is my personal review. This content is not the opinion of Pruvit Ventures, Inc. Pruvit Ventures, Inc, is not responsible for any of the information, view, or opinions expressed on this page. Please visit their official site for details. You can find links on this page. I am an independent Pruvit Promoter.

Disclaimer: These statements have not been evaluated by the Food and Drug Administration. Prüvit products are not intended to diagnose prevent treat or cure any disease. If you are under medical supervision for any allergy, disease, taking prescription medications or you are breastfeeding contact your medical provider before adding any new supplements to your daily regimen.

Have you tried ketones? Share your review or ask a question below!

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Pruvit KETO OS Review & Results – Lose Your Muffin Top

Jan 25, 2019 by 

Loretta J Leffew

I haven’t tried any of this, however I would like to try some samples to see how I do.

Krazy for Ketones

Pruvit KETO OS Review & Results – Lose Your Muffin Top

Thank you RACHEL!!!!! Since finding your blog in March, my life has changed so much… for the better!! You were so patient with me and my million questions. You’re such an inspiration. Thank you again. 

Keto Kreme

Pruvit KETO OS Review & Results – Lose Your Muffin Top

As far as the keto Kreme goes I was having horrible hot flashes as I’m premenopausal and would have several an hour 🙁 effecting my everyday life.. After a week of keto Kream I have had NO Hot FLASHES at all 🙂 I can’t believe it so I will drink it to the end LOL!!

Man on the moon

Pruvit KETO OS Review & Results – Lose Your Muffin Top

Aug 12, 2018 by 

michael williams

Everyday,without fail if I didn’t have a two bag cup of tea at three thirty, I would literally be like a car running out of gas, I would just peter out.(I am 72) Since I have been taking your ketone (Pruvit) lemonade , I have been able to comfortably get through the day without sweet tea, and as icing on the cake (forgive sugar pun) I am able to accomplish more and strangely I can focus on the tasks at hand without effort. We sent a man to the moon decades ago, it’s about time something equally impressive happens, and your Pruvit products are also a giant step for mankind. Honestly I used to think this product was expensive, but.. for the benefits I personally get from your ketones, I consider the cost negligible. Thanks so much. Dr. Michael Williams, Auburn.Alabama

Benefits of ketones

Pruvit KETO OS Review & Results – Lose Your Muffin Top

Let me just say that I started drinking ketones for fat loss. Lost 27 lbs in four months which I’m ecstatic about. But I wasn’t expecting to feel so good. I feel much happier and have energy for my demanding job and for my family. Even my skin looks so much better. I’m thankful I found these products as it’s been life changing.

10 day experience

Pruvit KETO OS Review & Results – Lose Your Muffin Top

Jan 01, 2018 by 


Thanks Rachel for the ketone trial. I really enjoyed all the flavors but found that I liked using the Keto Kreme in my coffee and maui punch best! My results have been great! I actually lost 7 lbs in those 10 days and I’ve gone on to lose 8 more the following month. They keep me energized and not as hungry!

Thanks for the Amped Blue!

Pruvit KETO OS Review & Results – Lose Your Muffin Top

Rachel, thank you for the samples of the Amped Blue Ocean. For daily use I like the Maui, but for those days I go on long runs, I love the energy of the Blue! I’ve lost 15 lbs and my brain feels much more sharp. It’s a remarkable product.

Blue Ocean flavor

Pruvit KETO OS Review & Results – Lose Your Muffin Top

Oct 23, 2017 by 


Thanks for the five day and wow, that Amped Blue Ocean flavor is so good! I hope they sell more to the public soon. I decided to order Raspberry because that’s the one I want to drink everyday!

Keto is a fuel source

Pruvit KETO OS Review & Results – Lose Your Muffin Top

one thing ppl don’t understand is Keto is a fuel source. exogenous ketones give you energy much like carbs except with more energy, and you don’t have the crashes. great for endurance athletes and for intermittent fasting. it’s been a game changer for me for competing in sports.

Fruity Pebbles

Pruvit KETO OS Review & Results – Lose Your Muffin Top

I was drinking the Max Maui for a couple weeks and seeing results, but when I started mixing the Maui and Orange half and half my fat loss increased and it tastes like fruity pebbles! I think there’s something about the MCT oils in the Orange that my body seems to respond to. Real happy. Down 18 lbs in about one month…I haven’t been under 200 since I was a teenager. yayy

4.9 5.0 25 25 I haven’t tried any of this, however I would like to try some samples to see how I do. Pruvit KETO OS Review & Results – Lose Your Muffin Top

Q: How much weight should I expect to lose daily?Terry

A: Hi Terry, everyone is different, but if you have more than 20 lbs to lose, some have reported up to a pound a day when they get started. For someone who is already closer to their goal weight, maybe closer to 1/2 lb. It also depends on your diet and whether you exercise. While you don’t have to change your diet to lose weight using Keto, you’ll always get faster results if you try to eat a moderate protein/high fat/low carb diet.

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Q: When I drink on an empty stomach in the morning I don’t get hungry until sometimes 1:00. Is this bad to not eat for that long? It suppresses my appetite so much I almost have to remind myself/force myself to eat. I did read something about intermittent fasting but I wasn’t sure if that was the best way. Should I eat even if I’m not hungry? I’ve lost 10 lbs in two weeks! And easily! Thanks.Tiffany

A: Tiffany, sometimes I do that, drink in the morning and then don’t eat until I’m hungry. It is called intermittent fasting and it’s ok to do. Just make sure you eat by lunch time if you’re going to skip breakfast. Rachel

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Q: I’m a 50 year old female. I had a large brain tumor removed August 4th. As a result I’ve lost a lot of cognitive ability, memory issues, and focus problems. I also gained 40 pounds from no activity. Steroids and stress eating. I heard Keto/os might help. I purchased and notice I am in ketosis an hour after taking it but get not a trace within 2-3 hours. Does this mean it’s not working for me? is it safe to take several times a day?Michelle

A: Hi Michelle, first of all, I’m so sorry you’ve had to endure so much! Are you peeing on the keto sticks? I never bothered…. I knew it worked for me because it suppressed my appetite, I lost weight, and I have great mental focus and energy. You can drink up to two per day (no more). This will definitely help keep you in ketosis longer and I’ve read that drinking 2x per day should keep you in ketosis for 24 hours, so maybe try again but don’t get focused on the strip. One a day worked for me but everyone is different, and with more weight to lose, I would recommend two. I would do the decaf in the afternoon – the charged version may keep you up at night and you need your rest 🙂 Good luck to you and I’d love to hear back from you to see how things progress.

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Q: Hi there. What kind of workouts did you do to lose 10 pounds in 4 weeks on keto?Heather

A: Hi Heather, thanks for your email. I usually went to the gym 1-2x per week and I mostly did plyo body weight stuff in the back room along with some kettlebell swings (15 lbs),  and I like the ball slam (only use 10 lbs).  Some free weights also, but nothing with super heavy weights.  I also play beach volleyball 1-2x per week so that gives me my cardio. So I’d say on average, I was active at least 3 days per week with a pretty vigorous workout. But like I mentioned in my article, I had been doing all this and more and the scale was not budging! When I started drinking the keto, I got fired up with energy and it helped me to push myself a little harder in the gym and the weight finally started coming off. I’m not a gym rat by any means, but I do stay pretty active.   I will email you one of my plyo workouts, in case you’re not familiar. I have a ton of these if you’re interested in more. I find that if I go to the gym with a plan in hand, I do everything. I hate just wandering around the gym and never get as good of a workout in.    Thanks! Rachel

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Q: Ca I add a scoop of protein to my drink.Jackie

A: Jackie, you can, but it’s more effective if you drink it separately. I actually asked this question recently…it’s not a huge difference but every bit helps! So if drinking it separately was 100%, maybe mixing it with a shake it would lose some strength so make it 80 or 90%. Personally I would drink 30 minutes before or after. Good luck! ~Rachel

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