Pruvit Keto OS NAT Review | Ketones Drink

Review of Keto OS NAT ketones drink by Pruvit

Is Keto OS NAT by Pruvit the Right Ketone Drink for You?

How does it taste?
How does it work?
What can I expect?

Here is my review and test of the popular Pruvit Keto OS NAT ketone drink product that is changing the bio-hacking space.

Rated 4.4 out of 5
4.4 out of 5 stars (based on 5 reviews)

Raj - The Keto Coach - Product Reviews

This review of Keto OS NAT is comprised of experiences, results and feedback from 1000’s of my personal customers. As well my own experience of using Pruvit’s Keto OS daily over the the last few years as part of my keto diet/low carb diet.

Everything I review on this website is based on supporting a low carb/keto way of eating. My goal is to allow you to make an informed decision to see if this product is right for you, and your goals.

Message me with the live chat or contact me if you have questions. I am here to help. Thanks Raj – The Keto Coach

The Problem We All Face..

Over the years, there have been a series of diets and supplements which have come and gone. Some have been fads which went away quickly, whereas others proved themselves to be the real deal and subsequently withstood the test of time.

Ketogenic diets have certainly withstood the test of time and has been found to be very effective for people looking to get healthier and burn fat to change their body composition.

Ketogenic diets are all well and good, but the main issue with keto diets is the fact that, well, you’re depriving your body of carbs for energy in order to enter ketosis, and as a result, those that follow the strict diet often find themselves struggling.

I am a big fan of keto (obviously), but once people realize what it takes to get into ketosis – some can’t stick it out.

This is where Keto OS NAT comes into play. I also exposed in this review the 2 BIGGEST SECRET HACKS of Keto OS NAT that  many people don’t know!

Pruvit Keto OS - Raspberry Lemonade Flavour

Pruvit Keto OS Nat can be so beneficial which is what we’re going to be looking at today.

In this Keto OS NAT Review, you will learn:

  • What is Keto OS NAT?

  • Benefits of Drinking Ketones + 2 Secret Hacks!

  • Customer Results & Testimonials

  • How Does is Work?

  • Ingredients of Keto OS NAT

  • Can You Eat Carbs and Drink Ketones?

  • Pro’s and Con’s List

The Proof! Before and After Blood Ketone Readings in Real Time.

In this video below I show you in REAL TIME how my ketones (in my blood) increased in 2 time-frames. You will be shocked!

This is a real test monitoring the blood ketone levels (not urine), which is the most accurate way to test. This is the proof.

* Disclaimer: There is no guarantee of specific results. The results depend on an individual basis.

What exactly is Keto OS Nat?

First and foremost, to get things moving I begin this Pruvit Keto OS review by looking at precisely what Keto OS Nat is.

Keto OS Nat is a relatively new supplement from Pruvit that is the ONLY fermented ketone supplement on the market – that is designed to put the body into a state of ketosis. The fermentation process is what makes it unique. As this makes it more “bio-available” simple means more of it gets absorbed into your system vs cheaper ketones which you just pee out (waste of money).

FUN FACT – Contrary to what some people believe, the acronym ‘NAT’ isn’t short for ‘natural, but rather it is an acronym for ‘Nutritionally Advanced Technology’.

The product is basically designed to provide an elevated amount of ketones into the body naturally, to get your body into a state of ketosis within 30 min approx.

Without you actually having to deprive your body of carbs and enter ketosis the hard way. This is a great addition to anyone start or following a keto / low carb diet.

Pruvit Keto OS Nat provides completely natural exogenous ketones which are biologically identical to the endogenous ketones that your body produces when you enter a state of ketosis naturally. Making it again, more available for absorption in your body.

Keto OS Nat can be purchased in a caffeine-free format, or containing caffeine. Curious? Want to try a NAT sample

I find the caffeine version works slightly better as the ketones with caffeine does give you a nice kick!

Keto OS NAT Flavors explained

NAT Ketones Flavors Explained

Pruvit is always expanding and testing new flavors. Here I explain what each flavor of Keto OS Nat tastes like since they are fusion flavors.

This way you can start with something you like, and explore other flavors from there.



  1. Raspberry Lemonade (tastes like raspberry and lemonade)
  2. Strawberry Peach (tastes like Strawberry and Peach)
  3. Heart Tart (tastes like sour candy)

Additional Flavors:

  • Lime Time (tastes like lime)
  • Maui Punch (tastes like fruit punch)
  • Swiss Cacao (tastes like a Tootsie roll and chocolate)
  • Splash (tastes like watermelon and strawberry)
  • Blackberry Pineapple (tastes like Blackberry and Pineapple)
  • Blueberry Acai (tastes like Blueberry and Acai Fruit)
  • Blue Ocean - Black Label (tastes like a pina coloda)
  • Ruby Rush - Black Label (tastes like grapefruit)
  • Wild Tiger (tastes like a fusion of apple, pineapple & melon)
  • Parents Approved Ketones - Keto OS NAT LITE
  • Orange Dream (no longer available)
Review of Keto OS NAT ketones drink by Pruvit

Ready to Try it Yourself?

See all the latest flavors available of these amazing ketones! 

Reg. Price: $130 (Save 22% with SmartShip when Ordering)

What is Ketosis and Why do People Struggle with it?

To understand why I wrote this Keto OS Nat review in the first place, we need to look at why people would want a product that puts them into ketosis, as opposed to doing it themselves.

The body naturally uses carbohydrates as a source of energy. It does this because it finds carbs the easiest to break down and convert into glucose.

When the body doesn’t have carbohydrates for a prolonged period of time, it begins to look for an alternative energy source which are ketones – our natural energy source.

Eventually in a glucose deprived state, the liver produces enzymes known as ketones, which are used as an energy source to replace glucose.

The reason people struggle is that, in order to enter ketosis and stay in ketosis though nutrition alone, you need to consume virtually no carbs at all (around 20g or less a day) which leaves people feeling tired and hungry.

Now I have been living a keto lifestyle for so many years, but many cannot stick with a strict way of eating.

In order to produce ketones, fat must first be metabolized, so in theory, you are burning fat to produce energy (ketones). Or at least, you’re burning fat to produce the enzymes which are then used for energy.

It can take several days to weeks to enter ketosis, and before you do so, some people claim to feel feel dizzy, nauseous, feverish, tired, and generally unwell. It’s call the “keto flu”

This is why drinking Keto OS Nat ketones is proving to be so popular, as you can enter ketosis, without the negative effects associated with doing it naturally. While still reaping the benefits of ketosis.

Benefits from Drinking Keto OS NAT

So what can you expect when drinking Keto OS NAT?

Below are some of the most common benefits myself, and many of my customer have experienced:

Benefits and 1 secret hacks of keto os nat

1. Supports Fat Loss

Keto OS NAT targets and assists in metabolizing body fat with every serving by allowing your body to follow a natural fat-loss formula.

2. Appetite Suppression / Carb Control

Keto OS NAT ketones naturally suppress your appetite. This has been a game-charger for new dieters adding ketones. This allows you to make better choices and eat less frequently.

3. Helps in Keeping Lean Muscle

Keto OS NAT ketones are extremely anti-catabolic (they are protein/muscle sparing) and will assist in preserving your lean muscle tissue during periods of caloric restriction. The more muscle you keep, the more fat you burn.

4. Amazing & Sustained Energy

Keto OS NAT Ketones offer fast energy that maximizes your focus while motivating you to move more. Many use it before going to the gym for an improved workout. 

5. Improved Mental Clarity & Focus

This honestly makes me feel younger! Keto OS NAT provides a cleaner, quicker energy pathway than glucose while providing very important signaling molecules to the body. This gives you such clarity and focus and really helps in your day-to-day activities.

6. Better Joint Mobility

Ketones, specifically beta hydroxybutyrate found in Prüvit’s Keto OS NAT, help maintain healthy joint mobility.

2 Secret Hacks of Keto OS NAT I Discovered

Since I have been drinking ketones for over 4 years, I have experimented a lot. Here are my 2 biggest secret hacks with ketones most people don’t know!


This was a total game-changer for me. Pruvit Keto OS NAT ketones DO NOT BREAK A FAST! So you can consume ketones in your fasted timeframe.

I have been following a keto diet, along with intermiitent fasting for years. Now adding ketones in my fasted state has allowed me to extend my fasts longer with ease.

Since the product gives you the energy you need, and also appetite control – all without spiking an insulin response (an insulin spike is what causes you to break a fast).

If you have been fasting, or trying to fast. This will help  lot. This is also why Keto OS NAT is in the fasting kit called 60 hour Keto Reboot.


Most people mix ketones in cold water, shake and consume. Which is great, but I have been adding it to my protein shakes to make a super shake.

Also adding ketones to my coffee! You can even bake with ketones. So many creative ways to hack this product into your lifestyle.

How Does Keto OS NAT Work?

So, as I am using this Pruvit Keto OS Nat review to look at what makes this supplement so popular, let’s get to the science and take a look at how the product works in the first place.

Watch the short video below, it explains how it works, and why. In a simple to understand format.

This supplement provides BHB, or R-Beta Hydroxybutyrate to the body in the form of ketone salts. This is an ingredient which is responsible for getting you into ketosis quickly and keeping you in ketosis!

Ordinarily, ketones can only be produced when you enter ketosis through strict nutrition, and to do so, carbohydrates must not be present.

But now by drinking Keto OS Nat ketones it provides BHB ketones for your body, bio-hacking it into ketosis quickly, without you actually having to quit carbs entirely and deprive your body.

TIP: Now I do recommend following a low carb way of eating while drinking ketones to maximize your results, and the benefits.

What is Keto OS NAT made of? What is in it?

This particular supplement utilizes a number of natural ingredients and ketone molecules to help the body enter a state of ketosis quickly.

    Key Ingredients Include:

    • R-Beta Hydroxybutyrate BHB (these are the ketones)
    • Caffeine
    • L-Taurine
    • Fermented L-Leucine
    • Rebaudioside A (Stevia Extract)
    • C-Med 100

    How to Mix Keto OS NAT

    It’s simple. Just add 1 packet in 12-16oz of cold water in a shaker, shake and consume. 2 packets a day is optimal. One in the morning, one in the mid-afternoon. You consume in between meals.

    Nutritional Label - Keto OS NAT - Raspberry Lemonade

    Example: Keto OS NAT Raspberry Lemonade Nutritional Label – Charged Version




    STORAGE: No refrigeration required. Keep at room temperature and away from direct sunlight.

    Applicable to KetoNAT™ (R-Beta Hydroxybutyrate), #Net Carbs = Total Carbs – Fiber – Sugar Alcohols, § Must be consumed with SIGNAL//OS™ for DNA repair and other therapeutic benefits associated with C-Med 100

    Carbs and Ketones

    Does this mean I can eat carbs and still be in ketosis?

    Yes and no. Though some people would love if they could drink ketones and still enjoy pasta, bread, rice, and other carby goodness.

    Myself and many others tested this, and found that to:

    • Get the best results in the shortest timeframe
    • Stay in ketosis the longest period of time

    It is best to follow any simple low carb diet (or keto diet) to maximize your experience.

    Don’t Use This to Cheat But…

    What Pruvit’s Keto OS Nat ketones drink does do however, is help you to be a little more lenient with your carb intake and while still entering ketosis quick and easy. Thereby avoiding the awful side effects as your body makes the transition into ketosis.

    So what I found is if you keep your carbs under 80 grams a day you can still reap solid benefits while have some flexibilty.

    Now I do have customers eating whatever they want and getting great results. But I do not recommend that approach.

    Keto OS NAT is a tool/supplement on your journey to eating healthier and feeling better. So, don’t use it as a reason to cheat.

    Does Keto OS Nat Really Work?

    Yes it does! But words are one thing.

    Look below where you can see Keto OS NAT reviews and results from my personal customers, and people I know who have been drinking Pruvit ketones.

    Some still on their health journey, and some who have achieved their goal!

    Pruvit Keto OS NAT - Before and After Results

    * Disclaimer: The results depicted in the photos (or described in the testimonial) are unique to the individual, and achieved through dedication to a specific diet and exercise regimen in conjunction with Prüvit’s dietary supplements. Results may vary by individual.

    Keto OS NAT Customer Reviews & Results

    Here Feedback from customers who recently purchased Pruvit Keto Kreme from the Keto Coach

    This stuff is real and really works!

    Rated 4.0 out of 5

    I only gave Keto OS a 4 star because of the price was a little pricey (but after using it – it does work and worth it.) Also Raj showed me how to get 22% off all the time now. But I can only give great reviews because this stuff really works!! Not like those other weight loss infomercials out there and you can see and feel the difference it makes! I usually don’t leave any reviews. I just read reviews but this one was worth it. Keto OS is an authentic ketones if you are shopping around!

    Johnson S.

    Keto OS is pure genius

    Rated 5.0 out of 5

    I’ve never been one to try products that claim this or that but after speaking to Raj I thought to give it a go. Let me tell you! This product tastes amazing and best of all you get into ketosis within the hour! No side effects! And you get to lose weight and keep it off!

    Thanks Raj for all your help and support!

    Amanda M.

    I tried other ketone drinks - Keto OS is amazing!

    Rated 4.0 out of 5

    I was using another ketone drink, and after talking to Raj about Keto OS. I tried it, and it soo much better. No stomach issue like I had with the other product. As well here I can get more flavors. Feel amazing – thanks Raj

    Tina C.

    * Disclaimer: The results depicted in the photos (or described in the testimonial) are unique to the individual, and achieved through dedication to a specific diet and exercise regimen in conjunction with Prüvit’s dietary supplements. Results may vary by individual.

    Raj - Drinking Ketones 4 years

    4 Years of Drinking Ketones…

    I have worked with 1000’s of people over 4+ years who are drinking these Pruvit ketones including myself!

    The truth of the matter is that Keto OS Nat is a very effective, all-natural ketone supplement that has been found to be very useful and effective for people:

    • Looking for fat loss, energy and mental clarity
    • New to, or starting a keto diet and need help
    • Who are on a low-carb/keto diet and have plateaued in their fat loss

    BUT… there is always 2 sides of a review…

    Pro’s and Cons of Keto OS NAT

    As with anything, there is always two sides to any great product. Here are what I have discovered as as the pro’s and cons of Pruvits Keto OS NAT ketones drink.


    • Works fast. You can literally feel it in the first or 2nd dose.
    • You can prove it works. Just by checking your blood ketones (or urine but that isn’t accurate)
    • Available is 11+ flavours. So you never get tired of the flavours
    • It’s water soluble. Your body does not get “used to it”. It always feels like the first time
    • Available in both Caffeine (charged) and caffeine-free version.  So great for everyone.
    • Pruvit offers a 22% on-going discount. Called Smartship, and bonus free product on your 4th shipment.
    • Special Box for Newbies. For people new to ketones, they have a single box with all the top new flavours in it. It’s called the 10 day ketones challenge kit. It’s the best way to experience ketones for the first time.
    • Coaching and support included with your purchase. Live coaches go live in a private Facebook group where you get tips and more to ensure the best experience and results. You get access after purchase.
    • Available all over the world. Before was just avilable in the USA. Recently they expanded to over 18+ countries.


    • Lack of stock at times. I have found at times they are sold out of my fav flavours. It does come back into stock, but having it available all the time would be ideal
    • Price for some is too expensive. But the product does work, and they do now have a 22% off discount always on their smartship so this does help most.
    • Lack of flavour descriptions. I was told from my Pruvit sources since most of their flavours are “fusion” flavours it hard to distinctly write the flavour (well except Raspberry Lemonade – which in turn is the top seller). I have explained the flavours above earlier in this review as my personal explanation if that helps.
    • Must go through a Pruvit referral to purchase. Not really a con as it doesn’t cost you more or less. Some people have asked me “why can’t I just buy normally?” This is because that referral person will be there to help you in the use of the product. It’s like having a personal coach with your purchase! Since this is free to you – it’s a good added value vs. buying supplements from a traditional source.


    If you are looking to start a healthy lifestyle, or currently follow a low-carb / keto-friendly diet, and use the product as instructed. Keto OS Nat will provide very noticeable results and will certainly speed up the process and make it much more pleasant. It is worth trying in my opinion.

    Review of Keto OS NAT

    Price: $130 (Save 22% with SmartShip when Ordering)

    I will coach you through the use of the product. Try a NAT sample today


    Ordering from me above? Well here is how you can save 22% using Pruvit’s “SmartShip” option (monthly autoship which you can cancel anytime). By selecting SMARTSHIP when ordering Pruvit Keto Kreme or any Pruvit Products. You will get a shipment sent out today to you (paying only for that order) and you will be setup for NEXT MONTHS autoship order which will ship out next month (you get charged next month when it ships), that one will be discounted 22% and always be 22% off as long as you keep your smartship active! You can change flavors monthly! and cancel anytime without penalty!  The Savings are AMAZING!

    Submit Your Keto OS NAT Review

    *KETO//KREME is not a medical treatment, medicine or weightloss supplement.
    **The Food and Drug Administration has not evaluated these statements. This product is not intended to diagnose, treat, cure or prevent any disease.

    Raj Patel Keto Coach and Pruvit Promoter
    About the Author
    Raj Patel - The Keto Coach is a 7 year Keto Diet Coach, Pruvit Promoter, and Experience Using Pruvit Ketones . Having helped over 4900 people lose fat, gain muscle, and achieve their health goals through a ketogenic diet, and keto supplements.