Pruvit KETO OS Review (UPDATED 2021): Don't Buy Before You Read This!

Expert rating: stars-icon     By Richard (Senior Reviewer) September 28, 2020       Advertising Disclosure

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Pruvit KETO OS is a weight loss supplement offering ketones in powdered form, which is claimed to offer an improvement in overall health. Increased energy, cellular regeneration, appetite suppression, fat loss, and more strength are some of the main intended benefits.

The ketones come in the form of a flavored powder which can be mixed with water inside of a shaker cup or blender. Ketones are a renowned fuel source that has increased in popularity for its long lasting effects and improved stability over carbohydrates. When the human body is in the state of ketosis it uses fat as a fuel source instead of carbohydrates, which can regulate blood sugar.

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Both caffeinated and caffeinated versions are offered, as well as different flavors. Here are the MAX Maui Punch ingredients:

Beta Hydroxybutyrate Erythritol L-Taurine Fermented L-Leucine Natural Flavor
Malic Acid Citric Acid Stevia Xanthan Gum Caffeine

Beta Hydroxybutyrate: Known as 1 of 3 possible ketone bodies, this version is released when there is a restriction of carbohydrates. The human body will produce it as an energy source whenever glucose is limited.

It will even be expressed during times of calories restriction, fasting, and exercise.

Side effects can occur especially in the beginning, when the body is transitioning from glucose to ketones as a fuel source:

  • Low energy, mood swings, and general fatigue.

In supplement form it is often used to jumpstart ketosis, to increase mental function, appetite suppression, and for improved physical performance.

Erythritol: Alternative sweetener which is known as a sugar alcohol. This is naturally within both fermented food and fruit.  Unlike other sugar alcohols it’s less likely to cause digestive issues, though this still may be a concern.

It’s used since it will not promote tooth decay or affect blood sugar.

Potential side effects can still result however such as:

  • Diarrhea, nausea, and increased thirst.

L-Taurine: A kind of amino acid that is naturally within the heart, brain, and blood cells. You’ll also find it naturally within meat.

This is added to supplements to improve cardiovascular function, though t’s not clear if this is a possible benefit.

Fermented L-Leucine: L-Leucine is an essential amino acid required by the body in order for proper function. Foods such as eggs, nuts, meat, and others contain it naturally. When it is fermented it is likely intended for improved absorption in the body, and it likely means it comes from a carbohydrate source.

Malic Acid: An organic compound which gives a sour taste and is found naturally in various fruits. This is often used to give food a pleasantly tart taste.

Stevia: Plant based sweetener which is considered to be an optimal alternative to standard table sugar. It will not affect blood sugar, damage teeth, nor does it lead to metabolic issues which can increase the risk for obesity.

Caffeine:  Each serving of Pruvit KETO OS has caffeine equivalent to a cup of coffee. They fail to mention the exact amount but this can vary between 95 mg to 150 mg. You can also buy a non-caffeinated version of this brand.

Excess caffeine, using it too late in the day, or mixing it with other stimulants can increase the risk for side effects including:

  • Anxiety, jitters, and high blood pressure.
  • Mood swings, headaches, and insomnia.

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EDITOR’S TIP: Combine this supplement with a proven fat burner such as Sletrokor for better results.


How this can work depends on both the flavor chosen, and whether or not there is added caffeine. You do get the option for a decaffeinated version of each flavor, which may be preferable for those looking to avoid the possibility of stimulate related side effects.

The amount of vitamins, minerals, and sodium also varies wildly. The chocolate swirl version has 67% of the daily amount of recommended sodium, and there are trace minerals. MAX Maui Punch has only calcium and 38% of the daily recommended sodium value.

This high amount of sodium is alarming, and there is concern over the safety of this. Your meals would have to be carefully monitored for sodium since excess amounts can potentially lead to what is known as Hypernatremia. This medical condition can result in:

  • Increased thirst, muscle twitching, and loss of appetite.
  • Weakness, bleeding in the brain, and confusion.

Ketone bodies can be beneficial but it also requires a limit to carbohydrate intake, since this can prevent the optimal function of ketones, making it potentially useless.

Monitoring your diet and making sure to keep carbohydrates within a certain amount a day would be required; otherwise there would be no reason to take it.

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The prices can range depending month serving size:

  • 30 individual serving sizes cost $160.
  • A 30 serving container costs $144
  • Single serving pouches with 20 servings costs $130.

The cost is fairly high for such a small amount of servings. Many of the amino acids are naturally found in many foods, and the added stabiles and sweeteners are strictly for taste and stability.

The actual ketone bodies are which deliver the main intended benefits are often sold around $30 for a 30 serving amount. Therefore you’re paying an excess for what is cheap additives.

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The company is named Pruvit Inc. and their contact information is:

Address: 901 Sam Rayburn Highway

Melissa Texas 75454

Email: [email protected]

A 30 day return window is offered as long as customers return the unused portions. After 90 days they require calling the company and retuning what is left.

They are a multi-level marketing company which is a controversial practice that allows regular people to sell and market brands in exchange for profit. They often result in aggressive marketing and potentially unproven claims made to help sell the product in question.

Pruvit has an F rating with the Better Business Bureau and a total of 8 complaints:

“Waited a full month and still no refund”

“Called to have them honor a claimed promotion but they denied it and didn’t give me what I paid for”

“Terrible customer service they don’t treat you fairly”

There’s also 4 negative customer reviews for the exact same reasons.

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EDITOR’S TIP: For the best results, our experts recommend using weight loss pills for at least 3 months. Save your money by buying a few bottles at once.


The majority of consumers had bad experiences with this brand:

“Did nothing for me”

“Bad taste it was horrible and it made me vomit”

“It can help you get into ketosis but only if you clean up your diet”

“So expensive and the taste is horrible. I couldn’t stomach drinking a full serving size, so hard to consume”

The 81 critical reviews on were often of the same variety. There were issues with the taste, its lack of results, and the price.

Even those who said they enjoyed it also admitted that you’d have to have a ketosis friendly diet low in carbohydrates in order for it to truly work. So the effort is on the individual for it to actually do what it is claimed to do. Still, for the high price many felt it was too underwhelming and not worth it.

The best weight loss supplements are ranked and carefully selected within our top 10 list.

How Does Pruvit KETO OS Compare?
  • Product Name
  • User Rating
  • Has Good Appetite Suppressant
  • Has Only Natural Components
  • Contains No Coffee
  • Pruvit KETO OS
  • 30 /100

The actual ketone bodies added to this will have an effect only when you make sure to cap off your intake of carbohydrates. The other ingredients are generally either found natural in many foods, or meant more for flavoring and stabilization of the additives. The key active ingredient is available in many there brands for a reduced cost, and you can actually make them appear in the body by fasting and limit carbohydrates. So in general carbohydrates have to be capped off at a certain amount in order for this to have an effect. The high cost was major concern for customers, as well as the lack of support and issues with the lack of a money back return.

We’ve determined that overall the most beneficial weight loss supplement of the year is Sletrokor. Its natural herbal formula has ingredients which can help suppress appetite, burn fat, and support overall wellness. All these benefits have been highlighted by consumer testimonials offered on their official website.

It focuses on providing a well-rounded formula which when used as directed can optimize weight loss progress. Read more about what made Sletrokor our top pick for weight loss support by clicking here.

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