Beetahüdroksübutüraat

Beetahüdroksübutüraat, often abbreviated as BHB, is a ketone body produced by the liver during periods of low carbohydrate intake, fasting, or prolonged exercise. It is one of three main ketone bodies, the others being acetoacetate and acetone. BHB serves as an alternative fuel source for the body, particularly for the brain, when glucose availability is limited. Under normal circumstances, the body primarily relies on glucose for energy. However, when glucose stores are depleted, the liver begins to break down fatty acids, producing ketones. BHB is the most abundant and stable of these ketone bodies. It can cross the blood-brain barrier and be used by the brain for energy, playing a crucial role in maintaining cognitive function during periods of low glucose. BHB is also utilized by other tissues, including muscles and the heart. The production and utilization of BHB are tightly regulated metabolic processes. Elevated levels of BHB are characteristic of ketosis, a metabolic state that can be induced through ketogenic diets or fasting. While beneficial in certain contexts, extremely high levels of ketones can lead to ketoacidosis, a dangerous condition.