Ketones in your blood or urine indicate that your body is burning fats instead of glucose for energy. Having ketones means your body is using its backup energy source — fats. If you …

Representative ketones, from the left: acetone, a common solvent; oxaloacetate, an intermediate in the metabolism of sugars; acetylacetone in its (mono) enol form (the enol highlighted in …

May 7, 2025 · Ketones, also known as “ketone bodies,” are energy molecules created by the liver from the breakdown of fats. Your body makes ketones when you don’t have access to carbs or …

May 3, 2022 · Ketones are chemicals the body produces when it breaks down fat for energy. If too many ketones accumulate in the body, they can become toxic. This is because they make the …

Oct 10, 2025 · Learn more about ketone levels, what they mean, and when to test for them. If you have diabetes, you will want to understand the difference between trace, moderate, and high …

May 26, 2022 · If the body does not have enough glucose, which is its primary source of energy, it breaks down fat as a substitute. This produces ketones. This article explains what ketones …

Apr 30, 2025 · Ketones are substances produced by your liver when your body doesn't have enough glucose (blood sugar) to use as an energy source. When your body is low on glucose …

Sep 28, 2025 · Ketones are chemicals produced by your liver cells when your body breaks down fat for energy. They act as an alternate source for your body's energy needs.

Ketone testing can be done anytime using a urine test strip or a blood sugar meter that tests for ketones. If ketone levels are very high or if the person is dehydrated, ketones may begin to …

3 days ago · Learn how ketones support heart health by easing workload, reducing inflammation, and improving vascular function.