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How Do I Interpret the Ketone Urine Test Results?

  • Last updated October 5, 2020

The color blocks on the  vial are used to read the results by comparing the test pad color to the blocks on the chart. Match the color of the test pad to the closest color block on the color chart. The color blocks represent approximate concentration  values of ketones in your urine.  The color blocks move from left (light color) to right (dark  purple) with increasing concentrations of ketones.

  Urine Ketone Color Chart

I keep getting negative results. Does that mean I’m not in ketosis? 

A negative result means that ketones were not detected in the urine. This is normal if your carbohydrate intake is too high or if you are eating a low-carbohydrate diet after several weeks and have become fat-adapted. Once you’ve become fat-adapted, your body is more efficient at using the ketones you produce and may no longer spill into your urine, even if you are in ketosis. 

What does it mean if my results are positive?   

Normal urine results following a Standard American Diet (SAD) generally will not have any ketones present. A positive ketone level in urine is called ketonuria, which can occur in the following instances:

  • When a person is on a very low carbohydrate diet. 
  • As a result of fasting, dieting, starvation, eating disorders, high protein diets and isopropanol ingestion. 
  • When diabetes mellitus is out of control. 
  • Ketonuria may be noted in normal pregnancy. 

Did we answer your question?

100 reviews

  1. I’m looking to understand what a 4.0 means on a ketone strip.

  2. Just freaking tell us what color We should be on to be in good keto you have a range but you don’t tell a specific

  3. I have no idea what these colors mean. I just started keto. The app was even more worthless

  4. I was looking for info on what levels I want to be in for ketosis. What do the colors mean? What color should I be looking for?

  5. What is a negative result? What is normal? What is positive. This article gave ZERO information on what the strips mean. No wonder you have 238 unhappy results compared to 53 happy people. Why not re-write your article to say: 0 means this while 160 means this….

  6. One day I’m in Ketosis next day I’m not one night I’m in ketosis and next night I’m not, it’s very discouraging what is the answer to why that is happening

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  8. So I am on a low carb diet for weight loss, I am confused, if my strip reads 0 does that mean I am in fat burn or am not? And if not where do I need to be to show I am in fatburn? Thank you!

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  11. The chart has numbers and colors but nothing explains level of severity. Plus, instructions talk about positive and negative results, but there are no negative numbers on the chart. I’m preparing to start using these, but I don’t how know how to interpret the results because you provide no indication of what the numbers or colors mean. For example, is the middle number and color mean “average”? And I couldn’t find any instructions on your website that says anything more / different than is what is on the container. Help!

  12. What is the optimal number on the Keto-Mojo urine syrop?

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  16. 2 stars
    Way cool! Some extremely valid points! I appreciate you writing this article plus the rest of the website is really good.

  17. what color should the strip be to indicate I’m in ketosis?????

  18. 2 stars
    Do you have any video of that? I’d love to find out some additional information.

  19. What is considered positive result, what is a negative. What do the colors mean? Is pink 0mg good or bad? No instructions on where you want to be/ should be.

  20. I am the 5th darkest on the chart 8.0 (80) what does that mean? The darker the better? What color & number do I have to be to burn fat? For the past 2 weeks I’ve been eating nothing but meat, eggs, avacodos Diet Coke and water in small portions and I gained 2 lbs what can I do to lose weight . I’m confused but I need my questions answered above.

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  22. should the strips be light or should it be dark…you do not say what the readings mean …ie my reading is 5 and 0.5 what does this mean??

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  25. Provide information that specifically informs the user of the meaning of each color category.

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  28. What color do I need to see to consider myself in ketosis. Can that be provided in plain English?

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  36. so my strip is in the 15 mg/dl or the lower number 1.5 mmo/l can’t you tell us what these readings mean good not good ???

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  39. What is supposed to be the color block of your urine when you are on a keto diet? What is normal and what is too high? The scale is just colors but it doesn’t say if it’s too high or to low. I would like a refund this product is trash!

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  46. Hi. What do the levels on the diagram mean? I have just reached level 15 (or 1.5). Is getting to the highest level ideal? Does that mean full ketosis? Or is everyone different? Thanks.

  47. The test strips are leveled 0-160mg/dl or 0-16mmol/L. I absolutely don’t know what the numbers or range means. I’m not a doctor. For instance, I’m doing a low carb diet to lose weight. I just registered close to a 40mg/dl. Should I shoot for a higher number? Or am I on a good range of ketosis for what I’m try to accomplish in weight loss. I haven’t a clue.

  48. I would like to know what all the levels mean and what I can expect at each level – energywise, and weigh loss

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  50. What do the different levels mean? How can I tell which range should be my goal on a ketogenic diet?

  51. Just trying to figure out is the strip should be light or dark if I’m burning fat and my low carb and low sugar diet/lifestyle is working.

  52. You don’t explain what each color means. Is any of it dangerous?

  53. Explanation is confusing and appears to contradict itself.

    I have maintained a low carb diet for a month and am receiving a low reading……………….good or bad?

    I have lost only a minimal amount of weight after 5 weeks.

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  55. What do the colors mean? how do they compare with urine test? I do both, from your brand Keto Mojo, and the blood test says 0.3 and the urine test says 1.5…

  56. I want to know: Am I ‘in ketosis’ or not. How do I figure this out?

  57. What color on the strip do you loose the most weight? And is to dark bad (health wise)

  58. Looking at chart … How many ketones are good (in ketosis)…?

  59. Tell me exactly what each square color mean.
    Ex: 40 means you are 75% in ketosis with 30000 keto in your body burn 1 pound of fat per 20 hours.

    Something like that because I have no idea what these readings mean

  60. No detail on actual numbers presented on bottle. Makes no sense. Negative results? I don’t see a negative number or sign on comparison chart. Only 0 -16. What do positive numbers mean by each number?

  61. You didn’t explain what the different colors mean .

  62. just tell me what color on your chart and what mg/dl I should be at for Ketosis I am reading at 40 mg/dl or 4.0 for mmol/l

  63. It doesn’t interpret the results. I am at 4.0 mmol. Am I in ketosis?

  64. Please be more definitive. While YOU are experts, and “know” this info as if it was 2nd nature…. most of us are “newbies”. Some new to Keto for losing weight—while others of us are fighting for our lives…. against Diabetes.
    Example: I read elsewhere that readings over 60 (6.0) and “into the darker purple” was BAD. Since I’m using KetoMojo strips, and was at 160 (16.0)—I came here to look. All I basically got was 0/no color means ‘NO KETONES’ + Any other variation = ‘Ketones present’/the darker, the more. “The END”. NOTHING about what different levels mean, what’s going on, is there a “danger/too much of a good thing” area….. if so, when is it crossed.
    A little more info/explaining would go a LONG WAY!!

  65. There are five increasing stages of ketones present on the urine test strips color alignment. What is the difference of interpretation between these various levels?

  66. Hi, My ketone levels have consistently measured dark purple since I purchased the strips. I started the keto diet and intermittent fasting about a week ago. Is this normal?

  67. So what color should I get when in Ketosis? Very light or very dark? You don’t provide this information

  68. What are positive and negative results? All I see are corresponding numbers

  69. I am on a low carb diet and I have been using the urine test strips every day and it keeps going to the same med pink. Does that men I am in ketosis? The bottle doesn’t say what that means. There is no explanation of colors on package or app.

  70. How do I know what each color means? How do I know if I’m in ketosis?

  71. I am trying to understand what the correct range is that I want to be in while on the keto diet.

  72. I don’t know what the color means. If I want to be in Ketosis, should I be towards the darker shades. It’s not explain the box.
    Thank you

  73. I want to know where I should be based on how long I’ve been following a ketogenic diet. What is ideal? What tells me I’m not low carb enough?

  74. Please tell us what the actual number mean. What range is ketosis? What range is good? What range is too high? Thanks

  75. After matching the color, what does it mean? I am assuming 0 means no ketone were found but what is the goal number? 160 mg?

  76. I want to know what level i should strive for being on a keto diet.

  77. What the hell the numbers mean and where I should be!!!! Duh!

  78. I am on keto and it continuously shows 0.5 when I use them. It never goes darker. Do these even work ? I barely eat ANY carbs so why is it not darker ??

  79. Have no way to determine what your level should be from stupid strips. You do not provide that info anywhere.

  80. Tell me what it means when the color matches the chart. I matched with the 40/4.0. What does that mean???

  81. Hello
    Am I correct to assume beige is negative and dark purple is positive?
    There is no ‘negative’ or ‘positive’ indicators other than in you literature. The only chart is the color block chart and no explanation of what each color means.
    There are numbers under the color blocks.
    I would like to know what the numbers under the color blocks indicate please.
    I’m really so surprised there is no explanation!
    Thank you for your reply!

  82. Okay, so is the only significance whether you are in ketosis or not – based on whether you see a positive result or not? If so, why do you have different concentration ratings? What do *those* **mean**? For example, if I am darker purple, or higher concentration, does that mean I am burning more fat? Or does it simply mean I drink less water?

  83. I would like to see an analysis of each color block on the chart and details as to what range is healthy.

  84. If you are in the dark color 160/16 what does that mean. Is that a good thing or should I watch out on what I am eating/drinking?
    Thank you!

  85. I want to know what number I should be at. Is 80 good enough? Or do i need to be at the very highest value to lose weight

  86. Explain what a the numbers mean. This is not a very user-friendly app because it says hook up to your monitor and if you only have your and strip test you don’t want to Bluetooth hook up to a testing device. Also it does not tell you where to track your urine strips

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