High Ketones Normal Blood Sugar

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When To Worry About Ketones

“Your blood sugar is over 250. We’ll have to test for ketones, just to make sure you’re not spilling any.” The nurse stuck a label featuring my name and date of birth onto a plastic cup. “The bathroom is down the hall and to the right,” she said. By now, I was familiar with the drill, having experienced it a handful of times in the past: Provide urine sample to endocrinologist and keep my fingers crossed that it’s negative. Fortunately, it was—no ketones spilled. Though we often toss the word ketones around when we talk about diabetes, there tends to be confusion about what ketones are and when they’re dangerous. What are ketones? Ketone bodies are produced by the liver and are byproducts of fat metabolism. They occur when muscles in the body (which normally uses glucose as fuel) begin to use fat instead. This can happen when a person restricts carbohydrates (i.e., following a ketogenic diet—see below), eats too little, or feels ill. Simply put, ketones are markers of fat burning in the body. People with diabetes need to be concerned about ketones, though, because they can be a sign of a life-threatening condition. The presence of ketones makes the blood acidic Continue reading >>

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Popular Questions

  1. Kenshosan

    The back story: I have been eating Keto since August 2015. When I indulge it's with Keto treats. Last night I ate quite a bit - all keto - but also within my macro ranges 1998 Calories, 12 g Carbs, 187 g Fat and 57g Protein. This morning my fasting blood sugar was 97 and my ketones were 0.2. At the end of today my 2 hour postprandial blood sugar was 90 and my ketones were 0.6. I don't understand.

    Did I just eat too much last night and the excess protein kicked me out of ketosis? Then why would my blood sugar still be good?
    Am I really fat adjusted and don't require high ketones? (I have never been above 0.6)
    Am I eating too much all the time and therefore can never get higher in my ketones? I didn't think 1998 Calories was too much. I weigh 200 lbs and am a 6'1" male and run 20-25 miles a week and train 3 times weekly.
    Can someone have a low blood sugar (under 100) and not be in ketosis?
    Could my Precision Xtra be off?
    What is the coorelation between blood sugar and ketones? I assumed the lower the blood sugar, the higher the ketones.

  2. Liz4fitness

    I could be way wrong... but.. I honestly don't think you eat enough. In fat...or protein. You may not have high ketone readings bc you aren't giving your body enough fuel.
    Your blood sugar can be high in the morning bc of the increase in cortisol to wake you up. OR... I kind of wonder if your body stress level is high from all the running and training without proper refueling.
    Are you logging your food ? I assume you are since you were so precise with your numbers.
    If those are truly accurate numbers, up your fat and maybe up your protein as well but fat the most. Carbs look great.
    These are just ideas and suggestions. Hope they help.

  3. richard

    Ketones are usually lower in the morning and higher in the evening. I've never seen a satisfactory explanation why that is so ... but it be..
    My normal range last year was 0.4 - 0.8 unless I fasted and exercised.
    1998 kCal is about right. You probably have a deficit between 500 and 1000 kCal/day and can expect to lose close to a pound a week.
    As for a relationship between ketones and glucose - the easy answer is ... it's complicated.

    But the long answer is if you are making glucose you make ketones at the same time, if you are eating glucose you don't make ketones. So if the glucose in your blood was made by your liver you are making ketones too. How many of each that you can measure in your blood depends on how many you made - how many you used so it tends to be a non linear relationship.

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