Pruvit Keto OS Review: Should You Try This Top Product in 2021?

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Pruvit Keto OS is an exogenous ketones supplement that came into the market in 2014. Since then, it has amassed a loyal following of users that swear by the life-changing effects of the product.

They say that their energy is higher than it’s ever been. They’re losing weight easier. Mental sharpness and focus have even improved.

While these are all well and great, what about the drawbacks or long-term effectiveness?

Does Pruvit really stand up to these raving claims?

With so many ketogenic supplements on the market, it can be difficult to differentiate between ones that are legitimate and ones that are just a money-eating scam.

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So, What About Pruvit Keto OS?

Below, we’re taking a deep dive into our experience with this supplement to share the truth that some Pruvit reviews leave out. That way, you can use the information to make your own informed decision on whether or not this is a supplement that will help you reach your goals.

Pruvit Keto-OS: What It Is

Pruvit Keto OS Orange Dream

Pruvit was one of the first in the game of ketone supplements. Many would even call them a pioneer in the industry. Keto-OS (which stands for “Ketone Operating System”) includes Pruvit’s very own patent-pending BHB salt, which helps to regulate ketosis quickly.

Pruvit claims that their product uses a proprietary “ketone energy” technology that delivers macronutrients to the body while optimizing regeneration, longevity, and energy on a cellular level.

You see, our bodies produce ketones naturally – but only when we are in a carb-restricted state [1]. When we supplement with exogenous ketones, they trick the body into assuming a ketogenic state.

The Keto OS product features a blend of extracted MCT oil, coconut oil, and beta-hydroxybutyrate (BHB) salts. It promises to kick your body deep into ketosis within just 40 minutes from ingesting it. They claim that it’s the perfect solution to kickstart weight loss or give you the final push you need in your health and fitness journey.

Their keto powders come in small packets that you can bring with you anywhere. Simply add the powder to 12-16 ounces of liquid of your choice, mix or shake, and enjoy.

Benefits of Pruvit Keto-OS

This combination of mineral salts, BHB, caffeine, and MCT oil brings much-needed ketones to the body. Exogenous ketones kick in your body’s natural production of them; you’ll be burning fat in no time.

Pruvit claims that their product offers the following benefits to its users:

Get Into Ketosis Quicker: Getting into ketosis and remaining there can be incredibly difficult for the body to do, not to mention the mind. We’ve all had that moment when nothing in the world sounds better than a hot pizza, right?

It’s okay to admit that we all could use a little help sometimes. That’s where exogenous ketones come into play. This extra kick of ketones from Pruvit’s powder could be the missing piece you need to get into ketosis and remain there. It means you have a little more wiggle room in your life to enjoy a few carbs here and there while still staying in ketosis.

It’s important to note here that if you’re not following a ketogenic diet, these few extra ketones will not help you. This isn’t the answer to a dieting problem. Pruvit Keto-OS will only be of use if you’re already engaged in the ketogenic diet. (If you hear otherwise via marketing tactics, ignore it.)

Increase Fat Burning: When it comes to burning off that stubborn fat, you’re more likely to see better results with a low-carb diet than with anything low-fat. With the help of Pruvit ketones, you should be able to get into ketosis faster and burn fat at a quicker rate. Over time, they say you’ll notice the pounds melt away.

You may also notice that the ketones help to suppress appetite. This means fewer refrigerator runs and much faster results in your journey to weight loss.

Muscled and toned woman

Avoid Keto Flu: The Keto flu happens when the body begins to adjust to the lack of carbs in the diet it was previously used to [2]. Pruvit says that their special mix of BHB and mineral salts help to fight off the fatigue and other symptoms associated with keto flu. Miss out on symptoms like dizziness, bathroom troubles, and more by taking the proverbial highway to ketosis.

Why is the keto flu a real thing? Our bodies are so used to using carbs for energy. When we cut them off from those carb sources, the boat gets rocked and our bodies begin to freak out during the transition. In addition to using ketone supplements during keto flu, you should also maintain proper levels of potassium, sodium, and magnesium.

Boost Endurance: Even the toughest critics will enjoy the boost of energy and endurance that Pruvit’s Keto//OS provides. If you like to train in the gym, you’ll be able to go that much harder in your workouts. Are you a runner? You might just beat your PR and take an extra lap.

This extra endurance comes from the reduction in your blood’s levels of glycogen and lactic acid. Without as much lactic acid, your muscle breakdown will happen more slowly. This allows you to get that extra push you need to go harder and longer on a regular basis.

If that edge in the gym is what you’re looking for, you could find it via Keto OS.

Sharpen Brain Functioning: There’s plenty of data and documentation that supports the positive effects of a ketogenic diet on our brains. Keto can improve the behavior of children with neurologic disorders through extra decanoic acid production. It can help treat epilepsy [3]. It has even been shown to improve the memory of rats that have Alzheimer’s disease. You could receive these same benefits with an exogenous ketones supplement.

Woman playing chess

Pruvit’s claim is that their supplement will provide more mental energy and improve sharpness. While there aren’t necessarily any medical studies to back up these claims, many users report better mental functioning.


Real Results from Pruvit

It’s nice to know what the manufacturer claims the product can do. It’s even nicer to know what real users say the product did do. For that reason, we’re breaking down real results from real customers that used this product. Everyone is different, therefore results will be different. By looking into the kinds of results that users experienced, we can have a better idea of what to expect. We’re using the titles Example A, B, and C to protect privacy, but these are real Keto-OS results.

Example A:

User A likes to say that the product both worked… and didn’t work. That’s because certain benefits were noticed, while others were not as strong. After taking the supplement, User A felt that he did get in better, longer, and harder workouts with the help of the exogenous ketones.

Since he’s already undergone the keto flu, he didn’t notice any benefits there. User A also clarifies that this product will not do anything if you’re not already following a dedicated diet and exercise regimen. The user did feel focused and sharp at work and appreciated that he didn’t feel so focused that he became robot-like.

Verdict: While this user benefited from the product, he points out that it should not be viewed as a “cure all” for keto dieters. A bump in diet and gym results is to be expected. Mild side effects and an average taste did not impress him.

Example B:

User B struggled with staying true to her ketogenic diet on the weekends. While keeping to a regimen Monday through Friday was easy, nights out with friends and dinner dates got in the way.

In order to reinforce her dieting habits even if she slipped up on the weekends, User B started taking Keto//OS Max. The extra boost helped her drop an extra eight pounds and enjoy her weekends more freely.

Woman drinking wine

Verdict: In using the product to allow for more wiggle room in lifestyle and diet, User B found a perfect way to maintain ketosis with Pruvit.

Example C:

User C began mixing the ketone supplement with water and drinking it daily in the beginning of 2017. After just three months of use, she found herself in much better shape, more focused at work, and generally happier.

User C had an issue with her “muffin top” area of her body and wanted a way to help kickstart that stubborn fat into melting away. With steady use of Pruvit Keto-OS, she was able to reduce her body fat in that area and feel much better about herself.

Verdict: User C benefitted from weight loss, harder and longer workouts, and more energy to use in spending time with friends and family.

Example D:

User D took this product for 250 days straight. In less than a year, he lost 45 pounds. This user saw a kickstart to his weight loss journey from taking the supplement.

Seeing results made it easier to stick with the strict diet for a long period of time, allowing more results to roll in.

Verdict: User D was struggling to lose weight and had a hard time finding the motivation to stick with the keto diet. After introducing Pruvit to his daily routine, he saw the weight come off more quickly and was able to stick to the diet for 250 days.


Pruvit’s Keto supplements come in three different varieties: Keto//OS, Keto OS Nat, and Keto OS Max. Each of these varieties come in a few different flavors. Many consumers say the flavors are pretty sweet. However, that can be expected with these kinds of supplements.

Pruvit keto flavors

Keto OS

Orange Dream: Similar in taste to a creamsicle. A good choice for a sweet tooth. Water it down if it’s too sweet.

Chocolate Swirl: Rich chocolate taste that goes greatly mixed in with iced coffee for a mocha flavor. A true fan favorite.

Keto OS Nat

Raspberry Lemonade: Refreshing mix with a taste of natural lemons. It will take you back to the days of running a neighborhood lemonade stand.

Splash: A good pick for those who like tropical fruit and summery drinks. Similar to old-school juice boxes in taste.

Keto OS Max

Swiss Cacao: Tastes like those Swiss hot chocolate powders if they weren’t quite as yummy.

Maui Punch: Sweet fruit punch flavor that will bring you back to your childhood. This is another one that might need to be watered down to taste.


Pruvit uses a few of the same ingredients in all of their mixes. Beyond that, the ingredients differ from one supplement or flavor to another. Make sure you take a close look at what’s in the exact product you end up choosing.

The ingredients you’ll find in all of the Pruvit Keto//OS products include:

  • Beta-hydroxybutyrate salts (BHB)
  • L-taurine
  • Fermented L-leucine
  • Ac-11
  • Citric Acid
  • Stevia
  • Xanthan Gum
  • Stevia

Their main ingredients form a patent-pending blend that they like to call the “N8 bioavailability blend.” What does this mean? These exogenous ketones match the ones your body naturally creates to help you absorb more of the ingredients, faster. This is because they are bioavailable to you (your body already makes them).

The ingredients begin to differ once you look at the individual flavors. They have a similar foundation, but additional ingredients make each one special. Here’s an example using the two flavors of the Pruvit Keto-OS:

Toned man in jeans

Ingredients of the OS Orange Dream Flavor:

  • BHB ketones
  • MCT oil powder
  • Caffeine
  • Malic acid
  • Natural flavor
  • Vitamins and minerals
  • *Contains milk

Ingredients of the OS Chocolate Swirl Flavor:

  • BHB ketones
  • Chicory root
  • L-arginine
  • L-tyrosine
  • Potassium citrate
  • Natural flavor
  • Caffeine
  • Vitamins and minerals


Enough about what’s in it and what it does. You want to know how it’s going to taste. Right?

Taste is important when it comes to something you’ll be ingesting every day. If you buy something you can’t stand, you won’t want to keep taking it.

Overall, users think that Pruvit products actually taste really good. This means a lot in the realm of exogenous ketones supplements. They’re not known to be delicious.

If there had to be a rating from 1-10 on the flavor scale, Pruvit’s products would land at about a 6.5 or 7.

While the company likes to claim how absolutely scrumptious their flavors are, customers wouldn’t take it that far. There are certainly better-tasting options out there, but these aren’t bad.

In certain flavors, users loved to mix the product with iced coffee or cream to make an indulgent concoction.

For example, mixing the Orange Dream flavor with some ice and cream makes for a Creamsicle-like shake. Adding a bit of the Chocolate Swirl flavor to your morning coffee can mimic the flavors of mocha from a cafe.

By far the most popular flavor is the Chocolate Swirl. It’s a great way to feel like you’re indulging in something sweet without throwing your diet out the window. You might even find yourself looking for ways to sneak an extra packet in just for the satisfaction.

Pretty woman drinking cocktails

What makes it taste so good might be the fact that there are actually carbs in the product. This is a bit frustrating, as the idea is to avoid carbs. Even still, it’s relatively low-carb and won’t throw your diet out of whack.

The flavors overall are pretty average. Keep in mind these aren’t marketed as tasty food experiences; they’re a health supplement.

Side Effects

With so many benefits to the product, it’s only natural that there are a few side effects.

While there are plenty of users that regularly take the product and report little to no side effects, others did not have the same experience.

Side effects tend to be mild. Be sure to seek medical attention if you experience any of the following symptoms severely:

  • Headaches
  • Stomach aches
  • Nausea
  • Vomiting
  • Stomach cramping
  • Diarrhea
  • Bad breath (fruity-tasting)
  • Increase in urination (due to diuretic effects)

These side effects could be from the product. They also resemble similar symptoms to the keto flu, so it could be that. Most likely, it’s a combination of the product and the natural keto flu transition. Regardless, you can mitigate these symptoms by ensuring a high water intake, supplementing extra nutrients and vitamins, and taking it easy while you adjust.


It’s important to also mention a few more serious dangers of the product.

Just as with any product, there are some negative reviews (even a Pruvit lawsuit).

However, after extensive research, there wasn’t any hard evidence of the dangers of the product to be found. Some folks seem to take issue with the way the Pruvit company is run – including billing issues, poor customer service, and misleading ads.

Still, that doesn’t have much to do with the effectiveness of the supplement itself. There are no real major health dangers in taking the supplement. Simply proceed with caution if a few customer complaints stand out to you.

How to Take It

Woman mixing powder juices

When you’ve got your package and you are ready to take your first day’s supplement, here’s what you need to do:

  1. Dissolve the pack into 12-16 ounces of cold water or liquid of your choice.
  2. Stir or shake it as if you were making a delicious cocktail.
  3. Drink and enjoy the effects!

In order to achieve the maximum level of performance and effects, follow these recommendations for your keto regimen:

  • Take the supplement twice daily. The best times are right in the morning and then again in the afternoon (before dinner).
  • While you’re taking it, stay away from carbs. This means all processed, unhealthy foods like flour, grains, wheat, and refined sugar.
  • Stay loaded on healthy fats throughout the day.
  • Plan your meals so you know what you’ll be eating and can resist temptation.
  • Incorporate a weekly workout routine to speed up fat loss.
  • Ensure you’re receiving at least eight hours of high-quality sleep each night.
  • Stay extremely hydrated. Challenge yourself to consume at least a gallon of water each day. Supplement with electrolyte beverages in between glasses of water.

Where to Buy It

Pruvit Keto OS Chocolate Swirl

If you’re ready to pull the trigger and make your first purchase based on these Pruvit keto reviews, you have a few buying options.

If you want to order directly from Pruvit, you’ll need to sign up to become a distributor first. This is because Pruvit is a Multi-level Marketing company that uses direct selling via distributors for their sales model.

If becoming a Pruvit distributor isn’t much your jam, you can simply buy the product on Amazon. The price is a bit higher on this site, but it comes with way fewer strings attached. With Amazon Prime, you can even get your products to you within two days from ordering.


Final Thoughts

We hope that these Keto OS reviews have helped you understand the product more and make an informed buying decision.

If you’re looking for a way to speed up your fitness and weight loss journey while maintaining a ketogenic diet, Pruvit Keto//OS might be a good supplement to consider.



Editors Choice


Our #1 Recommendation

  • Daily blend supplement that helps revive up natural ketones
  • Helps to avoid fatigue that often comes with a ketogenic diet
  • Has electrolytes that rehydrate and keep the mood more balanced
  • Energy levels will let you feel more prepared for new exercise routines


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