Keto Diet

Pruvit Keto OS Review: Is It Worth It?

Taking the plunge into a keto lifestyle can be fraught with all kinds of misinformation. Since keto is such a hot topic regarding healthy dieting and weight loss, many manufacturers and companies want to get in on the action with their supplements that use exogenous ketones to supplement ketosis.

But how can consumers know what keto supplements are legitimate?

We’ve got all the details in this Pruvit Keto OS review and how it compares to other keto supplements on the market. 

Pruvit Ketones


Pruvit claims that their exogenous ketones drink can encourage consumers’ bodies to reach ketosis in 60 minutes after drinking their product. Creators of this product also state that Pruvit helps increase blood ketone levels.

Keto OS may help you reach ketosis more quickly, help improve your energy throughout the day, and reduce your appetite.

Pruvit Keto//OS – Ketones Made Naturally

✅ Supports the body in transition into ketosis
✅ Burst of energy throughout the day
✅ Improves athletic performance


✅ Achieve ketosis quickly
✅ Improve energy and athletic performance
✅ Reduce appetite


Stomach upset and diarrhea
Significantly reduces blood sugar
Keto flu symptoms
Bad breath

Comparison Pruvit Keto OS vs BHB Ketone Boost

Pruvit Keto OSBHB Ketone Boost

Supports the body in transition into ketosis

Burst of energy throughout the day

Improves athletic performance

Transitions the body into ketosis easily

Powder supplement that can be mixed with water, with natural ingredients

Energizes the mind and body

Achieves ketosis quicker 

Improves energy

Reduces appetite

Many flavors
Improved cognitive function

Induces ketosis easily in the body 

Maintains steady weight loss


Stomach upset and diarrhea

Bad breath

Keto flu symptoms

Sodium overdose
Only one flavor available

Comparison winner: BHB Ketone Boost

What Is Keto OS?

Pruvit Keto OS is a keto supplement made by the company Pruvit. Keto OS, in this case, stands for “ketone operating system.” Keto OS is a keto supplement that uses exogenous ketones. Keto OS can be taken in drink form. Keto OS is made to be used on the go, with drink packets that can be dissolved in cold water and come in several flavors.

How Does Keto OS Work?

The ketones that are made through a ketogenic diet are called “endogenous ketones.” Endogenous means that these ketones are produced naturally within the body. The ketones supplied to the body through supplements are called “exogenous ketones.”

Ketones are naturally occurring compounds in the body that can be used as an alternative energy source. Ketones are released when the body starts breaking down fat rather than using carbohydrates for energy. This is called ketosis and is the expected outcome for a keto diet. It helps people lose weight.

This supplement works by supplying the body with a surplus amount of exogenous ketones in the form of ketone salts. This is meant to jumpstart the body into ketosis without taking the time and energy to stick to a strict keto diet.

However, these exogenous ketones won’t actually jumpstart your body into ketosis. What they will do is support your body in ketosis so long as you’re already following a strict ketogenic diet. Keto OS is not meant to replace a ketogenic diet, though the manufacturers make this fact hard for consumers to find.

Pruvit OS works best to support someone who is already eating a keto diet and doing an exercise regime to help them lose weight. It will help you achieve ketosis faster, but if you’re changing nothing about your diet, you’ll find that you get more side effects than health benefits.

How to Use Pruvit Keto OS Ketones?

Keto OS uses exogenous ketones in a powder supplement. It’s designed specifically to be easy for people who are on the go to take their daily dose of ketones to encourage ketosis. Pruvit suggests one scoop of their Keto OS be mixed with 12 to 16oz of cold water.


Keto OS can be taken once or twice a day, depending on how your body reacts and the effects that you want to achieve. Pruvit says that once a day will give the consumer “therapeutic” benefits, while twice a day will encourage the best performance of the supplement.

Pruvit Keto OS Ingredients

Many manufacturers try to take advantage of the popularity of keto to push exogenous ketone supplements with ingredients that aren’t up to keto health standards. Let’s look at the Keto OS ingredient list and see what’s helpful and what’s just filler.


Like most exogenous ketone supplements, the main active ingredient in Keto OS consists of beta-hydroxybutyrate salts, otherwise known as BHB salts. These BHB salts specifically help induce ketosis in the body, which helps with weight loss and fat burning. Keto OS uses sodium, calcium, and magnesium as their ketone salts.

Amino acids

Keto OS contains two amino acids, taurine and leucine. These amino acids are great for the body and have been known to help reduce stress levels. However, most people get more than enough amino acids from their everyday foods and aren’t required in a keto supplement.


Keto OS uses caffeine to give consumers a burst of energy throughout the day. However, caffeine has no use for weight loss or inducing ketosis. However, it may be used because caffeine has an appetite suppressing quality.

C-Med 100

Finally, this product uses a branded version of a plant called Cat’s Claw – C-Med 100. C-Med 100 is rich in antioxidants, and there is some evidence of being beneficial for reducing inflammation. However, there is little evidence to suggest C-Med 100’s benefits regarding ketosis or weight loss.

Pruvit Keto OS Dangers and Side Effects

Is Keto OS safe to take? With so many different keto supplements on the market trying to make a name for themselves, it’s hard to know who to trust. We’ve combed through all of Keto OS’s known dangers and side effects.

Keto OS suggests taking the supplement two times a day. However, because this particular keto supplement works, taking twice a day would leave the consumer with 80% of their daily recommended sodium in just these two drinks.

In their regular meals, most people usually already exceed their daily recommended dose of sodium. Flooding the body with these extra minerals can cause detrimental effects to those with high blood sugar levels. It can also cause an imbalance in electrolytes and dehydration.

If someone were to take this product without changing anything else about their diet or exercise, as the marketing suggests can be done, they could be at severe risk for high blood pressure and even kidney damage.


Exogenous ketone supplements have been well known to cause stomach upset when taken in high doses. Pruvit OS is specifically known for causing upset stomach, diarrhea, and nausea. Many people have also complained about stomach pain and gas.

Caffeine should always be consumed carefully. Ketone supplements that use caffeine often do so because of caffeine’s appetite suppression. While consumers may lose weight, they’ll attribute this entirely to the keto supplement, when in reality, their hunger signals are being blocked by the excess caffeine.

While this supplement doesn’t contain excessive caffeine, people should avoid consuming more than 400mg of caffeine a day. Pruvit OS can push you over your daily recommended caffeine when added with your morning coffee or afternoon pick-me-up.

Excess caffeine can lead to anxiety and an increased heart rate.

A Word From Our RD

A low-carb diet like keto is well known for helping you lose weight, supporting fat loss and overall health. Many people can lose weight and reach those health benefits by entering into nutritional ketosis through a natural keto diet.

But reaching nutritional ketosis isn’t for everyone. Following a ketogenic diet can sometimes be difficult for people, as it can take weeks to achieve. It’s tempting to take a shortcut and encourage your body to do all the work without having to actually follow a keto diet.

However, knowing what you’re putting in your body is far more important than taking a supplement to help you lose weight. Keto diets aren’t going to be for everyone. It takes a lot of time and effort to reach ketosis. Many people take weeks of following a strict diet before their bodies start showing the benefits of keto.

Many supplements on the market promise a miracle cure: all the health benefits of keto without following a ketogenic diet. Before taking the plunge with a new exogenous ketone supplement, make sure that you know everything there is to know about the product.

But more importantly: make sure you talk to your trusted medical care provider! Your doctor will know best whether your body and your health are up to the task of a keto diet or even using an exogenous ketone supplement.

How We Tested

We made sure to consider several factors for this particular review. Consumers’ health is one of the most important things to consider when looking at these ketone supplements out on the market today. Here’s how we tested Pruvit ketones as well as the competition.


We made sure to look at what exactly is inside the products. The layman looking at an ingredient list may not know exactly what they’re looking at. It’s hard for the average consumer to tell whether or not an ingredient listed is necessary or just filler. We made sure to look at the ingredient list critically.

Side effects

No one wants to take a supplement they trusted, only to be hit with terrible side effects. We made sure to do a deep dive into the dangers and side effects of the products listed. Consumers have a right to know what a supplement might do to their body, both good and bad.

Investigate the claims

Do these products really work? Manufacturers will often market their product in a way that is either intentionally confusing or misleading to sell a few more units. We made sure to check that the manufacturer’s claims lined up with what the product actually does.

Doctor’s orders

Finally, we took a look at what medical professionals are saying. It’s important to always consult your doctor before changing your diet or starting a new supplement. With these products, we made sure to check what doctors feel about them and their safety.


When is the best time to drink Pruvit OS?

Pruvit suggests taking the supplement once in the morning and once in the evening, with caffeine in the morning and without caffeine in the evening.

Does Pruvit ketones make you poop?

Yes, it is considered normal when taking Pruvit’s ketone supplement to experience changes in bowel movements, including frequency. If you’re experiencing more than 6 bowel movements a day, stop taking the supplement and consult your doctor.

Is drinking Pruvit OS safe?

Drinking Pruvit OS can cause several side effects, including ones that can be dangerous if not taken seriously. Consult your doctor before trying any new nutritional supplement.

Does Pruvit OS contain caffeine?

Yes. Pruvit OS contains the equivalent of a 16oz cup of coffee.

Pruvit Ketones Review: The Bottom Line

Pruvit Keto OS is a supplement that claims to use exogenous ketones to jumpstart the body into ketosis, allowing the body to burn body fat and encourage fat loss. However, these exogenous ketones are not all that they seem.

Pruvit marketing suggests that consumers can enter into ketosis without putting in any work or following a keto diet. However, this simply isn’t true. Pruvit is a supplement that encourages ketosis in the body but only works if a person is already following a keto diet.

These exogenous ketones are also known for causing stomach upset. Consumers may be plagued with diarrhea, stomach pain, gas, and nausea. The excess sodium in this supplement may also cause severe side effects, including dehydration and kidney damage.

Pruvit also uses caffeine as an appetite suppressant, which may give consumers the illusion that the product is burning fat when in reality, they’re simply eating less because their hunger signals are being blocked. Too much caffeine can also cause anxiety and increased heartbeat.

All in all, Pruvit Keto OS is not all it claims to be. The marketing is intentionally misleading to reach a wider audience of consumers who aren’t actually following a keto diet. Exogenous ketones should always be taken carefully and under your doctor’s supervision.


Pruvit Keto OS


Pruvit Keto OS is a supplement that claims to use exogenous ketones to jumpstart the body into ketosis. However, these exogenous ketones are not all that they seem. These exogenous ketones are known for causing stomach upset as diarrhea, stomach pain, gas, and nausea. The excess sodium in this supplement may cause severe side effects, including dehydration and kidney damage. Pruvit also uses caffeine that can cause anxiety and increased heartbeat.

  • Achieve ketosis quickly
  • Improve energy and athletic performance
  • Reduce appetite
  • Stomach upset and diarrhea
  • Significantly reduces blood sugar
  • Keto flu symptoms
  • Bad breath
Edibel Quintero, MD
Edibel Quintero is a medical doctor who graduated in 2013 from the University of Zulia and has been working in her profession since then. She specializes in obesity and nutrition, physical rehabilitation, sports massage and post-operative rehabilitation. Edibel's goal is to help people live healthier lives by educating them about food, exercise, mental wellness and other lifestyle choices that can improve their quality of life.

    Leave a reply

    Your email address will not be published. Required fields are marked *

    0 %