Where Are Ketone Bodies Broken Down?

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Tweet Ketonuria occurs when high levels of ketone bodies which occur when cells are broken down for energy are present in the urine. Ketonuria can be dangerous if ketones levels become high and may need to be monitored amongst people with diabetes who are prone to high blood glucose levels. Ketones tend to be produced as a result of insufficient insulin in the body and therefore people with type 1 diabetes, in particular, are at a greater risk of ketonuria. Why does ketonuria occur? Ketonuria may occur for different reasons, depending on your type of diabetes and whether you have a particularly low daily intake of carbohydrate. If you have type 1 diabetes or produce very little of your own insulin, then your body will start to produce ketones if it has too little insulin for a significant period of time, such as a few hours or more. When this happens, the body, not having sufficient insulin to get energy into the body’s cells, breaks down body tissue (fat and muscle) into ketones, which can be used as fuel without the need for insulin. Watch out for ketoacidosis However, high levels of ketones in combination with high blood glucose levels (hyperglycemia) can make you feel ill and Continue reading >>

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Popular Questions

  1. Hasshman

    Question about Ketone bodies

    Since I started Keto my lifts is suffering. I get fatigued really qickly. I try to do the same weights before I started Keto. Now I'm starting my third week of keto. I did a carb-up end of week two and it did help with my lifts.
    Does the muscles ever start to use body fat as a source of fuel or will it need the carbs? If my muscles did adapt to use fat (when fatty acids are broken down to Ketone bodies) as fuel I would never carb up.
    Is Ketone bodies only used as energy for the brain and heart?
    Why is that the keto diet emphasises that we get most of my cals from fat?Isn't that counter productive? If you feed your body fat, won't it be used to make Ketone bodies instead of your already stored body fat?

  2. Doobie2270

    I think muscles use ketones for energy until you do something really strenuous, like lifting heavy; then it uses stored carbs. If you keep lifting heavy, you deplete glycogen, and eventually you won't be able to sustain your usual level of activity. Then you carb-up and repeat the cycle.
    If you don't have fat in your diet, then you won't be able to stay in ketosis for long. If all you eat is protein, then the protein will turn into glucose, and your body will rely on glycolysis for energy as oposed to ketones. That would probably be very bad for your muscles as well. Once you're in ketosis, dietary fat will be used for energy, and, if you eat a deficit of calories, then body fat will also be used.

  3. Eileen

    Your body can use ketones for lifting weights as well as cardio and all the other stuff, but where there can be a slight problem is that the body won't always supply enough fatty acids at once for the demands of really heavy lifting over a long period. You can cope by either using longer rests between sets, or just lifting heavy for a shorter session. Personally, I reckon that if you are spending longer than 45 minutes in the pit, you are probably messing about. Lift heavy and go home.
    The longer you do keto, the more efficient your body will get it a using fat for fuel for all activities.
    You eat fat to encourage your body to go into ketosis where it is burning fat for energy. You eat below maintenance to make sure it is using your bodyfat as well as dietry fat.

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