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Nutritional Ketosis – Quantitative

Nutritional Ketosis (quantitative test)

New Rapid Breath Test for Ketosis – Results on your Mobile Device in < 3 minutes!

The KetoChek™ Breath Ketone Test is a rapid and convenient way to accurately measure ketones to determine if you are in a state of nutritional ketosis, or “fat-burning”. KetoChek™ does not require blood draws or inconvenient urine samples, just your breath! Accurate results correlate directly with blood ketone levels and are a more reliable indicator of ketosis than urine ketone tests.

Medical and Health & Wellness Professionals: Support ketogenic diet programs within your practice, while enhancing your practice revenue by testing with KetoChek™ as part of every ketogenic diet program!

  • Quantitative results read, interpreted, and delivered via the innovative BreathScan Lync™ reader*, and sent directly to your mobile device via the free BreathScan™ mobile app!
  • Takes less than 3 minutes!
  • Highly accurate: results closely correlated to the benchmark blood-based ketone testing
  • Facilitates frequent testing and data tracking to monitor if you are currently in a fat-burning ketogenic state
  • Uses patented MPC™ Biosensor technology
  • Small, hand-held disposable cartridge design – test anywhere! (only 5 1/4" long)

* KetoChek™ cartridges require the use of the BreathScan Lync™ reader. Click for more information on the BreathScan Lync™

Note: KetoChek™ is not intended to diagnose, treat, cure or prevent any disease. KetoChek™ is a general wellness product intended to measure (quantitatively) indicators of nutritional ketosis in the exhaled breath of humans. It can be used to promote, track, and/or encourage choice, such as the use of nutritional supplements, diet and exercise as part of a healthy lifestyle. General wellness products do not require FDA clearance. The intended use statements have not been evaluated by the FDA.

Easy-to-Read Chart of Results Tracked Over Time via BreathScan™ App

How the KetoChek™ Test Works

  • The KetoChek™ test device works with the BreathScan Lync™ reader and your mobile device to provide results directly to your mobile screen.
  • More information on the BreathScan Lync™ reader.

Here’s a brief summary of how to take a KetoChek™ test and get results. Read and follow the complete test instructions in the package insert when testing:

  1. Open the BreathScan™ app on your mobile device and log in.
  2. Initiate a new KetoChek™ test on the app (which will provide illustrated directions on taking the test, including the following steps).
  3. Break the crystal-filled ampoule inside the KetoChek™ cartridge and blow forcefully through the device for 30 seconds.
  4. Break the second, liquid-filled ampoule inside the KetoChek™ cartridge, and shake the cartridge briskly for 5 seconds.
  5. Let the chemical reaction incubate for 2 minutes.
  6. Insert the cartridge into the BreathScan Lync™ reader. The reader will automatically power up, analyze the cartridge, and immediately send the results to your mobile device via Bluetooth® technology.

Your score is displayed on your mobile device, along with a graph of your KetoChek™ results over time!

About Ketosis

What is Ketosis?

Ketosis is a metabolic state where the body utilizes fat stores for energy, in contrast to a state of glycolysis, where blood glucose provides energy.  Most people in the developed world are regularly in a state of glycolysis.

However, when blood glucose from carbohydrates and simple sugar sources cannot meet cellular energy demands, the body forms ketone bodies from fat tissue and subsequently utilizes these ketone bodies for energy.  This is considered being in a ketogenic state or a state of ketosis, or often also referred to as “fat burning”.

Ketosis is a desirable state for many people interested in weight-loss, specifically loss of body fat.  Ketosis is also of interest to diabetics for blood sugar control and has shown therapeutic evidence for many other health-related concerns. A ketogenic state can be achieved through dramatically reduced carbohydrate intake and exercise.

Note:  KetoChek™ and BreathScan Lync™ are not indicated for the diagnosis or management of diabetes or any other conditions or diseases.  Both devices are exempt from FDA pre-approval.

About Testing for Ketosis

Why do I need to test to see if I am in a state of ketosis?

Maintaining a steady state of ketosis optimizes fat utilization for energy and thus “fat burn” or “weight loss”. A ketogenic state can be affected by several factors, including level of caloric intake, type of caloric intake (i.e. carbohydrate/sugar vs. protein vs. fat), and level of physical activity.

Due to variability in the metabolisms of individuals, achieving a ketogenic state may require different dietary and physical activity levels for different people. Furthermore, the relatively strict regimens required to maintain a state of ketosis may be difficult for some people to closely adhere to. Frequent, efficient and accurate testing can help determine if your behaviors are resulting in a ketogenic state and that your fat burn is optimized. This is one reason why KetoChek™ Breath Ketone Test is so useful!

How do I test to see if I am in a state of ketosis?

Recent developments in analysis technology have allowed for rapid, efficient and accurate ketogenic testing utilizing breath. The KetoChek™ Breath Ketone Test from Akers Bio™ uses patented technology to measure breath acetone.

The standard measurement for ketone bodies is a blood test, however it requires a blood sample via finger prick or blood draw, which may not be a convenient or preferred method of testing, particularly when frequent tests are desired. Ketone testing with KetoChek™ is highly correlated to the benchmark blood-based ketone testing.

Currently, the most widely available test for at-home use is the urinary dipstick ketone test. In contrast however, urinary levels of ketone bodies do not necessarily correlate to blood levels of ketone bodies and a state of ketosis (Gilbert et al 2000). Urine testing can be unreliable due to the changes in ketone ratios produced by the body and the decrease of ketones excreted into the urine (referred to as ketoadaption), the longer your body is in a ketogenic state (Marliss et al 1970).

How can ketosis be measured from my breath?

When you are in a state of ketosis your body is producing ketone bodies from stored fat to utilize as energy. Humans produce three types of endogenous ketones:

  1. Acetoacetic acid
  2. Beta-hydroxybutyrate
  3. Acetone

Acetone is an organic compound that diffuses quickly from the blood stream to the lungs and is expelled in the breath. By utilizing chemical color change, acetone levels can be quantitatively measured in breath, and a level of approximately 5 ppm (parts per million) indicates a state of ketosis.

How accurate is breath testing for ketosis?

As low carbohydrate diets designed to put the user in a steady state of ketosis have grown in popularity, so has the demand for a method to efficiently, accurately, and conveniently evaluate a person’s ketogenic state. Several clinical studies have been conducted to evaluate breath analysis, in comparison to the benchmark blood ketone tests. Breath analysis for acetone, such as with the KetoChek™ Breath Ketone Test, has shown to be strongly correlated with - and a strong predictor of - ketones in blood plasma for individuals on a ketogenic diet (Musa-Veloso et al 2002, Musa-Veloso et al 2006).

Links to additional information about ketosis:


Gilbert DL, Pyzik PL and Freeman JM (2000) The Ketogenic Diet: Seziure Control Correlates Better With Serum beta-Hydroxybutyrate Than With Urine Ketones. J Child Neaurol, 15:787-790.

Marliss EB, Aoki TT, Unger RH, Soeldner JS and Cahill GF (1970) Glucagon levels and metabolic effects in fasting man. J of Clin Inves, 49(12): 2256-2270. ketosis. (n.d.) Mosby's Medical Dictionary, 8th edition. (2009).

Musa-Veloso K, Likhodii SS, Rarama E, Benoit S, Lie YC, Chartrand D, Curtis R, Carmant L, Lortie A, Comeau FJE and Cunnane SC (2006) Applies nutritional investigation: Breath acetones predicts plasma ketone bodies in children with epilepsy on a ketogenic diet. Nutrition, 22(1):1-8.

Musa-Veloso K, Likhodii SS and Cunnane SC (2002) Breath acetone is a reliable indicator of ketosis in adults consuming ketogenic meals. Am J Clin Nutr, 76:65-70.

How to Buy

To order this product and other Akers Wellness products, please contact Akers Bio.