How to interpret the values (in the Ketonix App).

Here is a description of how values of a healthy normal persion could be iinterpreted.

Ketosis isn't a steady value you have throughout the day, it can vary a lot depending on what you are doing. Whenever your levels of insulin rise ketosis goes down. Commonly ketosis decrease after meals (body stores excess energy), during and up to an hour after exercise (body produces glucose). Ketosis may even for some decrease during first days of fasting when liver releases glucose in response to glucagon.

Values in the black range means your liver isn't producing a lot of ketones at the moment.  

If you get values in the green range, you are in nutritional ketosis. This means you eat low carb and use fat as fuel (for some this nutritional ketosis also causes weight loss). This range indicates a maintenance ketogenic lifestyle.

Values in the yellow range commonly are associated with caloric deficit combined with a ketogenic diet. The caloric deficit could be caused by exercise or intermittent fasting (or a combination thereof). Having values in this range (or above) is likely causing weight-loss. Getting into this range normally requires you to lower your glycogen stores. Depending on your tool to do this (exercise or fasting or both) and your current glycogen storage, it could take more or less time. 

The range for breath ketones are 0 up to 1000 PPM in some cases. The Ketonix range is tested from 0 up to 200 PPM.

There is no way to correlate a blood ketones with breath ketones. Breath ketones are formed when the liver produce ketones. Blood ketones are formed when the energy need of the cell's decease (e.g ketosis decrease). Breath ketones are not accumulated like the blood ketones are. The blood ketones can exist in blood until needed again. 

Breath ketones indicate the current level of ketosis.
Blood ketones indicate that your cells saved excess ketone energy into a storage form, and these buffers haven't been used yet. It is only of value for people having type 1 diabetes to check if the blood ketones are accumulating, for us others ... the blood ketones can be anything. For example: A blood ketone value of 3.5 mmol equals approximately 15 calories, it is very easy for your cells to use those blood ketones at any time. Even a short period of activity could trigger your cells to use them up.


Ketonix is NOT a device to detect high carbohydrate dieters!

If you follow a high carb diet and want to track your ketones, we suggest you track them in the morning before breakfast. High Carb meals could for some produce methane from bacteria breaking down carbohydrates and for others cause a reactive / postprandial hypoglycemia. This is when your pancreas produces an insulin response that is too strong and your glucose and insulin levels become very low. To protect your brain, ketogenesis will supply your brain with energy, hence the ketone response.

Testing in the morning before breakfast would have the least effect on your breath ketones. A large glas of cold water before testing is adviced.


Examples of different tests and responses

Ketone Response to Exercise

During a workout like weight lifting, spinning, HIIT, aerobics etc which is shorter than one hour, your body will try to increase glucose to fuel your muscles. As this happens your ketosis will decrease.

Right after the workout insulin rises and normalizes your blood sugar. An increase in insulin will result in a decrease of ketosis. It takes about an hour or two for the insulin effect to do its work and then your body will start to recover.

During the actual exercise, energy will mostly come from stored glycogen and fat in your muscles. The effect of burning off the fat around the waist comes in the recovery phase after the exercise stops and insulin normalized glucose in your blood.

So, measuring during and right after an exercise (<1-2hrs) will show little or no ketones. The often wanted fatburning effect comes 1-2hrs after the exercise ends. The effect may last hours after the exercise and depends on post exercise feeding.

Ketogenic Meal Ketone Response

When measuring ketone responses for meals, it is important to note the level of ketosis before the meal, as it has effects how your body reacts to the food. 

It is also important to measure a few times with a fixed interval as there are different phases when body digests foods.

An egg-timer is handy to remind one to test.

Carb Meal Ketone Response

When carbohydrates are metabolized into glucose, insulin rises and ketosis decreases. Depending on the food composition and amount the response will look different. 

We recommend to always record the level of ketosis before testing any food or exercise. Responses from both exercise and food could be quite different depending on your baseline ketosis.

High Carb Meal gives a high response.

There are two possibilities: Either the response is caused by methane or by acetone.The normal response after carbohydrate meals is very low/none.

Methane response comes from bacteria breaking down carbohydrates. This is not a normal response and could possibly be a sign of SIBO (small intestine bacteria overgrowth).

Getting a hign response of acetone from a high carb meal could be triggered by too much insulin was released in response to a quick rise of glucose in blood. This is called "Responsive/Postprandial Hypoglycemia". It means your pancreas produces more insulin than needed and glucose and insulin will decrease below normal levels. To protect your brain from being  out of energy, ketosis produces ketones as alternative fuel.


Why Choose Us?

We use our product!

The founder of Ketonix have epilepsy and needed a tool to manage his ketosis. We who work here use a low-carb diet for health and stay focused, the Ketonix device enables us to tweak our lifestyle and optimize our performance.

Our Support is in Ketosis
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Our mission is to provide a simple, cost effective and painless method to know if your body is in ketosis and the strength of it. With the insight of your level of ketosis you could adjust your actions to increase/maintain your ketosis.

Ketosis is when your insulin levels are low and your liver starts to metabolize fat into ketone energy. When ketones fuel our brain we sense a high mental clarity and energy boost. Without the ability to get into ketosis when glucose and glycogen is low the human man kind would not exist.

Ketosis is not the the same condition as Ketoacidosis. Ketoacidosis is is a complication of type 1 diabetes mellitus. It's a life-threatening condition resulting from dangerously high levels of ketones and blood sugar


Ketonix® analyze your breath for the ketone named Acetone. Acetone is spontaneously released from the liver when ketone energy is formed.

The more fat that is mobilized into energy, the more Acetone in your breath.

Don't mixup breath ketones with blood ketones. Blood ketones are formed from excess ketone energy and could be converted back into energy at any time. In some situations one could say that they correlate, higher breath ketone level and you might find more blood ketones. Then add that your body could have issues both creating them and use them for energy, these factors makes it harder to interpret blood ketones. This is one of the reasons Ketonix® was invented, to indicate the strength of ketosis.

KETONIX® - Breath Ketone Analyzer - The Original Biohackers Choice Since 2013

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