Category Archives: Reviews

KETO//OS Review Part 1

KETO//OS Review


Claim: Keto//OS causes a state of nutritional ketosis in about 60 minutes

Order your Keto//OS and try for yourself: KETO//OS from Pruvit.

  • Taste: 4/5 stars – Tastes great with a mild yet not unpleasant after taste
  • Mixing: 4/5 stars – Mixes up smooth and easy
  • Efficacy: Inconclusive – Urine testing is not an accurate test for fast tracked ketosis.  Will test blood in part 2.


Ingredient breakdown:

  • Beta hydroxybutyrate – In humans, D-3-hydroxybutyrate is synthesized in the liver from acetoacetate, the first ketone produced in the fasting state. The biosynthesis is catalyzed by the enzyme beta-hydroxybutyrate dehydrogenase.
  • Medium Chain Triglycerides – Medium chain triglycerides (MCTs) are partially man-made fats. The name refers to the way the carbon atoms are arranged in their chemical structure. MCTs are generally made by processing coconut and palm kernel oils in the laboratory. Athletes sometimes use MCTs for nutritional support during training, as well as for decreasing body fat and increasing lean muscle mass.
  • Nonfat Dry Milk
  • Disodium Phosphate – It is used in conjunction with trisodium phosphate in foods and water softening treatment. In foods, it is used to adjust pH. Its presence prevents coagulation in the preparation of condensed milk.
  • Natural Flavor
  • Malic Acid – Malic acid, when added to food products, is denoted by E number E296. Malic acid is the source of extreme tartness in United States-produced confectionery, the so-called extreme candy.
  • Stevia – Sweetener
  • Ascorbic Acid – Ascorbic Acid is Vitamin C. People who don’t meal plan correctly when eating a ketogenic diet may be deficient in Vitamin C so I’m guessing the Acorbic Acid is meant to supplement Vitamin C.  It may work in conjunction with the beta hydroxybutyrate to increase the efficacy of the supplement.

I believe the Keto//OS supplement “tricks” the body into thinking it’s in a state of fasting or low carb intake and switches gears into the start of nutritional ketosis.  This happens due to the presence of beta hydroxybutyrate that comes from acetoacetate, the first ketone produced in the fasting state.