What are Ketones?

Ketones are molecules that the body produces when it breaks down fat for energy. They are a type of fuel created by the liver from fatty acids during periods of low food intake (fasting), intense exercise, or when carbohydrate intake is very low. Ketones are an important source of energy for the body, especially during times of increased metabolic demand. The presence of ketones signals that the body is in ketosis, a metabolic state in which the body is utilizing fat as its main source of fuel instead of carbohydrates.

Ketones in the Blood

Ketones are produced in the liver and then circulate in the bloodstream, where they can be measured by urine, breath, or blood tests. When carbohydrates are not available, the body breaks down stored body fat for energy, producing ketones. While in a state of ketosis, levels of ketones in the blood can become elevated. An elevated level of ketones in the blood is referred to as “ketonemia.” If not appropriately managed, ketones can build up to dangerous levels, leading to a condition known as “ketoacidosis.”

Benefits of Ketones

Ketones can provide a number of health benefits. Research has shown that ketosis may improve multiple markers of health, including cholesterol, fasting blood glucose, and blood sugar levels. It may also reduce inflammation and even help to improve brain function. Additionally, ketones can provide a more efficient fuel for the body, allowing for longer periods of intense activity and decreased reliance on glucose for energy.

In summary, ketones are molecules produced by the body when it breaks down fat for energy. They are an important source of fuel during periods of increased metabolic demand and can be measured in the blood. Ketosis, or elevated levels of ketones in the blood, may have numerous health benefits and can provide a more efficient fuel for the body.