Best Exogenous Ketone Supplement

It’s Time to
Your Life With Keto//OS

The best exogenous ketone supplement  on the market is

KETO//OS® (Ketone Operating System). A revolutionary

drink mix based on a proprietary ketone energy technology.

Enter into ketosis in 60 minutes or less, with bio-identical ketones.

ketogenic girl accelerated meal plan

Who is Prüvit and what is KETO//OS

KETO-OS stands for “ketone operating system” and it’s the first Pure Therapeutic Ketone Supplement on the market. The proprietary blend is owned by Prüvit and is Dr. Approved, Lab Tested, and University backed. Dr. Dominic D’Agostino, who is one of the most world-renowned experts on Ketones and Ketosis, developed the technology of Keto-OS at the University of South Florida (USF).

Prüvit was the first company approved by USF to acquire the sublicense rights to market this patent pending technology and now owns the worldwide rights to Keto-OS. Prüvit is partnered with multiple universities and PhD’s continuing the research focused on the connection between Ketones and Cancer, Diabetes, Parkinson’s, Alzheimer’s, PTSD, Epilepsy and many more disorders. Human studies on finished products are underway at various universities and research facilities.

Keto//OS Orange Dream 2.1

Made with a mixture of both optimized ketones and MCT oils.



Made with a mixture of both optimized ketones and vegan amino acids.


Pruvit Keto//os MAX


KETO//OS® Max is the most advanced version of our Ketone Operating System. Enhanced bio-availability


Pruvit Keto Reboot


This 60 hour Keto Reboot will assist you to reset your metabolism by reprogramming your genes to run on fat for fuel. By conquering a 60 hour Keto reboot, you engage your body to use fat as an energy source

Why We Said Yes to Keto//OS

Perhaps you are wondering  why we said yes to Keto//OS. Well, to be honest we were quite skeptical in the beginning. Could a supplement put someone into therapeutic ketosis in less than hour by using beta-hydroxybutyrate (bhb) salts? So, we decided to put Keto//OS personally to the test.

We had been on a quest to find a tool that could help our community group and those who follow our blog with the low carb keto diet.

We had exhausted all our known resources. We spent countless hours teaching and coaching individuals, and we were tired of seeing start the lifestyle and quit when confronted with a food temptation.

No one is arguing that a low carb ketogenic diet can be done without the help of a supplement like Keto//OS. Sure it’s possible, but it’s so much harder and we were aiming for people to change their lifestyles not just find a quick fix.

Our heart is to serve our community by sharing what we have learned and what we continue to learn about the benefits of being in ketosis.

As community group pastors we want to see people to whole in spirit, mind and body. We wanted to see lives  transformed, in every sense of the word.

Well, to say we were pleasantly surprised is an understatement. Within minutes of consuming my first serving of Keto//OS I noticed an immediate boost in my ketone levels. I had more energy, greater mental clarity, less fatigue, and my appetite had reduced dramatically.

Randy noticed that he was able to work-out longer and harder. His post exercise recovering was also remarkably quicker. He too felt the increased energy and appetite suppression.

Honestly, we were both a bit stunned that we experienced these benefits since we had been doing a low carb ketogenic diet for several years already. We couldn’t believe we could somehow improve what we were already doing by adding  Keto//OS

For the first time we were able to do intermittent fasting easily. Fasting is something that as believers we knew was important part of our Christian walk, but struggled to do so effectively. That’s no longer the case for us.

After testing Keto//OS for a few weeks we realized we had something very special in our hands and that we now had a responsibility to share it.

Today, we are thrilled that we decided to share this amazing tool. We see how it’s helping our family, friends, community group and our blog family too.

We are always looking for ways to assist people in changing their eating habits, aiming to take all excuses off the table.  We never want to hear that you can’t make healthy choices because it’s too challenging.

That’s what we found with Pruvit’s Keto//OS.

Click below to see a 4 minute explainer video

Keto//OS Campfire Video

Fittoservegroup Group Testimonials Using Keto//OS

fittoservegroup before and after picture

“I became someone who had become an expert at camouflage. Hiding behind people, objects and the mask of a smile. The use Keto//OS and the support of Fittoservegroup as well of that of my loving husband helped me transform my life” -Anilu Gali

Merilyn Clay Keto OS Transformation

“It’s not that I didn’t try doing the low carb diet, I was just never able to stick with the plan until Fittoservegroup introduced me to Keto//OS today I have already lost 30 pounds and I can’t be more pleased”.-Marilyn Clay

Yvette and Ricky Galllinar's Keto OS Transformation

Our pastors, Ricky and Yvette Gallinar. After having ringside seats to our personal health transformation, they saw the need to open the church, Word of Faith Global to host a Fittoserve Group. Not every ministry would have seen the value of this, but our pastors have a burden for the lost and for the body of Christ to experience optimal health. They had attempted to follow the advice we gave them at Fittoserve Group for over a year, but were finding it very difficult to stay faithful to the lifestyle. It wasn’t until Keto//OS that they were able to do so successfully.

Dr. Dominic D’Agostino speaking about the ketogenic diet and the use of exogenous ketones.

Experience the power of ketones with keto//OS

Choose Your PLAN

Pick a program that best fits your needs. All plans offer free low carb keto coaching from Fittoservegroup via email, texts, phone calls or all of the above.



15 days

Keto//os Orange Dream 2.1

INGREDIENTS: Beta Hydroxybutyrate, MCT Powder, Natural Flavor, Malic Acid, Stevia, Caffeine, Ascorbic Acid. Contains Milk Ingredients, Gluten Free.

Keto//OS Chocolate Swirl 3.1

INGREDIENTS: Beta Hydroxybutyrate, Amino Acid Blend (L-taurine, L-tyrosine, L-arginine, L-leucine), Natural Flavors, Inulin (Chicory Root), Potassium Citrate, Stevia, Caffeine, Ascorbic Acid, Butyrate. Dairy Free; Gluten Free. (available caffeine free)

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30 day Kan (canister)


30 day OTG (on the go packets)

Keto//os Orange Dream 2.1 (kan) canister

Keto//OS Chocolate Swirl 3.1 (kan) canister

Keto//os Orange Dream 2.1 (OTG) On the Go

Keto//OS Chocolate Swirl 3.1 (OTG) On the Go

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Keto//OS MAX


20 days

INGREDIENTS: Beta Hydroxybutyrate (Patent Pending), Erythritol, L-Taurine, Fermented L-Leucine, Natural Flavor, Malic Acid, Citric Acid, Stevia, Xanthan Gum, Caffeine‡. Dairy Free; Gluten Free.

‡ Caffeine equal to an average cup of coffee.

(caffeine free option is also available)

Keto//OS Bio MAX Maui Punch

Keto//OS Bio Max Swiss Cacao

Keto//OS Bio MAX Raspberry Lemonade

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60 hour program


3 x KETO//KALM (2 Caramel Apple, 1 Chocolate)
4 x BETTER//BROTH (2 Keto Thyme, 2 Salted Caramel)
4 x KETO//OS Max Raspberry Lem. (2 Charged and 2 Caffeine Free)
10 x SIGNAL//OS Capsules


Keto//OS Bio MAX Maui Punch



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