Ketosis is a metabolic state where the body shifts from relying primarily on glucose to using fat as its main source of fuel. This process begins when carbohydrate intake is significantly reduced, prompting insulin levels to drop and signaling the liver to convert fatty acids into ketone bodies—namely beta-hydroxybutyrate, acetoacetate, and acetone. These ketones then serve as a highly efficient energy source for the brain and body, often resulting in enhanced mental clarity, stable energy levels, and accelerated fat loss.

Achieving ketosis can be done through dietary approaches like the ketogenic diet or through extended fasting. In both cases, the key is to minimize carbohydrate intake so that the body is forced to tap into stored fat. Beyond weight management, ketosis has been associated with reduced inflammation and therapeutic benefits for conditions such as epilepsy and type 2 diabetes. However, it’s important to approach this metabolic state with careful nutritional planning to avoid pitfalls such as nutrient deficiencies or electrolyte imbalances.