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Ketone Levels

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Everything You Need To Know About Ketones

Ketone is an organic compound that the body produces when fats are broken down for energy. People with diabetes may not be able to regulate the level of ketones in their blood, so ketone testing is an essential part of managing their condition. There are three types of ketone, which are collectively known as ketone bodies, or ketones. In this article, we explain when to check for ketones, the types of tests available, and how to understand the results. Contents of this article: What are ketones? The body uses a range of nutrients for energy, including carbohydrates, fats, and proteins. It will use carbohydrates first, but if none are available, the body will burn fat for energy. When this happens, ketones are produced. Ketones have gained attention in recent years due to the popularity of ketogenic diets, in which people eat a low carbohydrate diet so that their body will burn fat instead of carbohydrates. There is currently a lack of clear evidence on the benefits of this diet, and there may be some risks, such as high acidity in the blood and loss of muscle. Typically, carbohydrates are broken down into different nutrients, including blood sugar (glucose), by an enzyme called amy Continue reading >>

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Popular Questions

  1. Emacfarland

    I'm confused about what defines being in nutritional ketosis based on blood levels. The Diet Doctor website says 1.5 is considered ketosis while I've heard on Keto Talk from Doc Nally that fit and active people can be in ketosis at levels of .3 or .4 and that higher levels don't necessarily mean better. So I'm not sure what the heck I'm aiming for! If I get readings below 1.5 am I doing something wrong? I am fit and active and Doc Nally has said this can make blood ketone level readings lower because an active persons body is using the ketones more efficiently. Should I be aiming for higher levels?

  2. BillJay

    It seems that the longer someone is keto-adapted, the more their body produces just the right amount of ketones and what we measure in the blood is only what's not actually being used, therefore it seems not only possible, but likely that people are in ketosis even with lower betahydroxybutyrate (BHB) levels - the ketone in the blood that these meters measure.
    This is somewhat frustrating for me since I'd like for there to be an objective measurement of being in ketosis, but that seems to be elusive.
    Therefore, a better indication is your level of carbs since it is HIGHLY unlikely that anything over 50 carbs is in ketosis and more likely that keeping carbs under 20 grams is a safe bet. Another indication is keeping protein at moderate levels which is 1.0 to 1.5 grams per kilogram of lean body weight.
    Once the macro-nutrients are in the proper range, I think that signs of keto-adapation are more poignant and below is a post from Mark Sisson on Dr. Mercola's site that explains many of the signs of being keto-adapted.

    What Does It Mean to Be Fat Adapted?
    543

  3. richard

    Dr Phinney invented the term so he gets to define it.
    In his book "The art and science of low carbohydrate living" he gives the range from 0.5 to 3.0 mmol/l
    But recently he mentioned that some of Dr Volek's very athletic subjects were clearly in ketosis at 0.2 mmol/l.
    My personal range is from 0.2 to 0.8 mmol/l, and I have been in ketosis for almost 3 years. Prof Tim Noakes is also normally in the same range 0.2-0.8.
    I suspect when we first start we aren't good at using them so we make too many and use too little so we end up with a lot left in our blood. After we become better adapted we end up in whatever physiological range our bodys feel best ensures our survival. And people who are trained and good fat burners may be able to get away with less because they can make it easily.
    When I fast for 3 days and then do 3 hours of exercise my ketones can go as high as 3.5. But I know people who regularly get up to 7.
    It's worth pointing out that Dr Nally has mentioned in his most recent podcast that he eats exogenous ketones 3 times a day. And he sells them.

    Personally I wouldn't be worried. I think you are doing fine.

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